Internal regulator 3 wire alternator wiring diagram

Shop Alternator Wiring Adapters at Summit Racing. $20 Off $250 / $50 Off $600 / $125 Off $1,320 - Use Promo ... Plug-in conversion used to connect 1963-74 GM external regulator wiring harnesses to 1969-85 GM SI series internal regulator alternators. ... They are available in a variety of styles—and include pre-terminated wire ends with the ...

Internal regulator 3 wire alternator wiring diagram. The voltage regulator completes the circuit thru an internal transistor to ground, via the green wire. This is why it is so important that the case of the voltage regulator is securely grounded. The regulator turns the alternator field current on/off to keep the alternator output voltage at 14.5 volts (+/-) depending on the battery's state of ...

Apr 27, 2010 · 1- can i re-use my stock 1969 alternator fan and pulley. 2- will the 3 wire internal regulator alternator re-use the stock 1969 mounting brackets. 3- Which year/ model of car/truck do i ask for at auto parts store for 3 wire internal alternator. 4- where can i find the wiring instructions for converting to internal ( i would also want my in ...

External wiring itself is very easy: * +12V switched source (ie. from ASD relay) to voltage regulator center pin (blue wire on the pigtail harness) & to generator field source*. * Ground the voltage regulator case - I installed a ground wire with 8mm ring terminals from alternator ground post to voltage regulator case and used an M8 bolt …1961 - 1963 F100 Unibody - 1962 Ford F-100 Alternator Wiring - I am cutting my teeth, mechanically speaking, on a 1962 F100. ... The GM alternator was made in external and internal regulator models. Yours seems to be the far more common internal regulator 10SI. ... If you can locate the wire on your old regulator that went live with the key ...Leblanc Discussion starter · Aug 26, 2013. Recently picked up a 67 and am slowly fixing all the shortcuts. Im replacing the alternator and noticed some weird wiring. It had the main hot wire hooked up and then a plug that had one wire just cut off and the other running back to the main hot connection. My new alternator has a small square plug.My 74 origially had a 232, and a PO had already done the 3 wire alternator swap. The voltage regulator went bad and upon removal I discovered that the alternator case was cracked so I neeeded a replacement. The best match was for a 77 CJ. Bought the O'Reilly's rebuilt, but it overcharged at speed. Exchanged it for a second which undercharged at ...Make it big. If you are installing a 130A alternator increase your wire size from the alternator to the solonid. 10 ga wire is only rated at 30 amps 8 ga 55 amps. By the charts you need a #2 wire for 130 amps. (or you could use 2 of the #8 or #6-75amp) Do yourself a favor and get a piece of welding cable.To run a basic car with points or electronic ignition electric power is needed for the ignition and to power the alternator. That's around 4 amps at 14 Volts. (The power then is 4x14= 56 Watts). With the alternator regulated to produce power at 14 Volts, the alternator output will be 4 amps.

Advertisement Let's start by looking at how a normal light is wired so that you can understand basic residential wiring for a light switch. The figure below shows the simplest possible configuration: In this diagram, the black wire is "hot....This Plane-Power voltage regulator is similar to a three-wire regulator. The sense wire and the aux wires are connected to the enable wire. ... either from the F2 terminal or from an internal ground to the alternator frame. ... Always consult the wiring diagram. If the regulator is receiving power from the bus, check next for a good ground ...A 3 wire alternator wiring diagram is composed of several components. The most basic and important part is the red wire, which connects to the battery-positive terminal. The black wire connects to the negative terminal, and the yellow or green wire connects to the alternator's stator/rotor supply. In addition, there are often auxiliary wires ...The Negative (Black) wire goes from the alternator to the car's chassis and the battery. The car's chassis acts as a "ground" or "earth" connection for the electrical system. The engine turns a pulley connected to a belt, which rotates the alternator's internal components. As the alternator spins, a magnetic field is created. This ...The terminal marked "F" on the external regulator connector should go to the terminal marked "2" on the alternator. Again, this preserves the original color code. Some alternators have both the number and a letter identifying the alternator connections. 1 = I; 2 = F; where I represents the Indicator light terminal and F represents the Field ...The Delco Remy alternator wiring diagram consists of a series of diagrams that detail the wiring of the alternator. Each diagram is labeled with the part number and a description of what it does. The diagrams are organized by the type of wiring, such as AC power, battery charging, or DC power. You’ll also find a legend on the diagram that ...The alternator wiring diagram with ammeter is a critical component of your vehicle's electrical system. By understanding how to properly assess and maintain the wiring, you can ensure that your vehicle is operating in top condition and prevent costly repairs in the future. Knowing the basics of alternator wiring with an ammeter can give you the insight you ... <a title="Alternator Wiring ...How To Properly Wire Your Marine Alternator. Wiring Diagram Engine Regulator Full For Android. Alternator. 3 Phase With Pod Wire Up Access Norton. Te20 Generator And Alternator Wiring Diagrams By Heads Tractors Issuu. 1969 Mgc Alternator Lucas 16 Acr Wiring Forum Mg Experience Forums The. Geu250 Mini Alternator Plug Kit. Swapping In Later Model ...

Begin by connecting the stator and rotor by using the designated wires in the wiring diagram. Make sure the connections are secured tightly and the wires are not crossed or twisted. Once the stator and rotor are connected, you can then connect the regulator. Finally, connect the regulator to the battery and the starter motor.This serves to provide isolation and protection between the connections and prevents current from the alternator damaging the battery. In summary, carrying out an alternator conversion from an external regulator to an internal regulator requires careful consideration. Paying attention to the wiring diagrams and diagrams that illustrate the ...Everything you ever wanted to know about Home - How To's. News, stories, photos, videos and more. Stock tanks are a pre-built container alternative to a full-on pool installation. You can use a battery-powered LED light to fake a real fixtu...The wiring hookup is the same for the CS-130 and CS-130D alternators. On both the CS-130 and CS-130D alternators use the PLFS (SFLP shown below) letters molded in the side of the voltage regulator, where the plug plugs in. The main activation lead is the "L" terminal on the plug, the "L" terminal must have a resisted ignition wire to the "L ...External wiring itself is very easy: * +12V switched source (ie. from ASD relay) to voltage regulator center pin (blue wire on the pigtail harness) & to generator field source*. * Ground the voltage regulator case - I installed a ground wire with 8mm ring terminals from alternator ground post to voltage regulator case and used an M8 bolt with ...

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22 Sep 2016 ... ... wire, agricultural applications also used 3 wire connections to the alternator. ... alternator regulator connection. This connection acts as a ...These diagrams provide detailed information about how to properly wire and install your alternator in order to ensure optimal performance and reliability. Knowing how to read these diagrams, and understanding their purpose can save you time and money in the long run.Hook the Orange wire (I believe) to the back of the alternator. This seemed to be the easiest solution with the least amount of electrical trouble repeats. Any starter/alternator shop should be able to hook you up and tell you how to wire it. I use Torodyne rebuilders in Rushland, PA 215-598-3105.I did check the alternator (dynamo in Kubotese) output which appears to be fine with more than 20 VAC. Anyways, referring to the attached, the diagram in the upper left shows the wire colors as they exist on the connector but don't match the wire colors on the regulator. The colors on the regulator are as shown here: kubota b9200 voltage | eBayStep 4: Electrical Connections. Connect the brushes of the positive red cable to the alternator’s positive terminal. Then, connect the negative terminal of the brush (it may be blue or black) from the rotor field to any part of the alternator’s casing (as the ground). Wiring diagram for a 1-wire alternator.

The wiring diagram will have several different components labeled, such as “battery”, “ground”, “ignition switch”, and “alternator”. The diagram will also include the recommended wire size and where to …Torque all fasteners to values labeled in diagram below. This alternator may have more terminals than the one being replaced had or used. It will charge properly with only the battery and ground leads connected. Use of the other terminals is optional based on need. See "TERMINAL DESCRIPTIONS", Page 2. 18SI™ WIRING DIAGRAM 5-PIN (3)Dec 7, 2021 · A wiring diagram is a graphical representation of an electrical circuit. It shows the connections between the various components of the circuit and can be used to troubleshoot and repair circuits. When it comes to an internally regulated alternator, the wiring diagram consists of two main parts: the field and armature circuits. and connect the red wire to the output side of the alternator 10/32 stud, take the long wire and connect to the + side of the coil. If you are using a coil with external ballast resistor connect this wire to the battery side or key switch side of How To Wire Alternator 12-VOLT NEGATIVE GROUND 3 WIRE INSTRUCTIONS www.vintageautogarage.comFord alternator wiring diagram internal regulator. Among all the Ford alternator wiring diagrams above, this is the most complicated one. It consists of ignition switch, fuse panel, engine compartment relay box, instrument cluster and many more. It requires advanced knowledge to fix an alternator with this diagram. See also: Free Ford Wiring ...The diagrams illustrate how the alternator and voltage regulator work together. "F" on the alternator is the field input wire, and "B" is the B-lead, which is the power output. The field input of about 2 to 3 amps, combined with engine power, can output up to 60 or 100 amps depending on the alternator rating.External wiring itself is very easy: * +12V switched source (ie. from ASD relay) to voltage regulator center pin (blue wire on the pigtail harness) & to generator field source*. * Ground the voltage regulator case - I installed a ground wire with 8mm ring terminals from alternator ground post to voltage regulator case and used an M8 bolt …Nov 11, 2022 · The Gm Internal Regulator Alternator Wiring Diagram is designed specifically for General Motors applications. It incorporates a complex series of wires that connect …Mar 10, 2020 · In this video i show you how to wire up a Delco 3 wire alternator. This wiring should work for vehicles too. Took me a while to get back to this video becau...

It is available in both 12V and 24V versions and can be found in cars, trucks, boats, and other applications. The wiring diagram for the Delco 10si alternator is fairly straightforward and easy to understand. The wiring diagram is usually laid out in a logical manner with the connector pins labeled. This makes it easy to identify the exact pin ...

(RULE #7 - NEVER THROW AWAY ANY SUNBEAM PARTS.) Then connect the alternator as given in Table 2. Table 1 - Stock Voltage Regulator Wiring. Terminal, Color Wire ...Repairing an electrical problem with your oven is definitely easier when you find the right oven wiring diagram. Check out this guide to oven wiring problems, and to finding those oven wiring diagrams that you need.Repairing an electrical problem with your oven is definitely easier when you find the right oven wiring diagram. Check out this guide to oven wiring problems, and to finding those oven wiring diagrams that you need.The large output stud of the alternator should be marked B+ or something similar. This goes to two places - one heavy-gauge wire with a fusible link goes to the battery-side of the solenoid; another wire goes to the A terminal of the voltage regulator. The latter is the sense input to the regulator.If this is the alt/reg system you have then it is best you convert to the single wire SI model alternator and get rid of those two external regulators and you will eliminate several other wires including that screwy switch on the dash. That dash switch is just asking for trouble. Walt Couch, Aug 9, 2015. #8.The VR is now inside (or on top) of the Alternator which reduced the wiring to 3 wires: IGN, L and S. S = To "sense" the voltage in the system and regulates the charging process. L = Output high/low to turn the "no charge" light on or off. IGN = Voltage from the ignition key switch to activate the alternator (on/off).The wiring hookup is the same for the CS-130 and CS-130D alternators. On both the CS-130 and CS-130D alternators use the PLFS (SFLP shown below) letters molded in the side of the voltage regulator, where the plug plugs in. The main activation lead is the "L" terminal on the plug, the "L" terminal must have a resisted ignition wire to the "L ...On vehicle voltage regulator connector harness, cut the wire to number one terminal ("1" identified on end frame) and strip ... Plug and seat the weather pack adapter into the alternator regulator opening. 5. If it has a ground lead, place it on ground terminal and tighten nut to 5.0-8.5 Nm (44-75 lb in).Delco Remy strongly recommends ...Take the charge light wire and hook it up to one of them, leave the other one empty. Start the engine and check the voltage. If it's on the wrong one, the voltage will stay at battery voltage, if it's on the right one you'll see over 15 volts. Get it on the right one and then hook up the "sense" wire to the other one.Larry, we really need to know what brand & type of alternator you installed [& if one wire or 3 wire]. ~Even then you probably won't find an actual wire diagram for the installation. I have drawn a few wire diagrams for Delco alternator installations on the Dubuque tractors like the M, 40, & 420 but haven't had a need to do so on the numbered ...

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To view free diagrams for E-Z Go golf carts, visit VintageGolfCartParts.com or BlockbusterGolfCarts.com. Both websites offer wiring diagrams for the electrical system, charger, speed controller and steering assembly.We explain how to wire a 3 wire Delco 10si alternator and how to check for correct belt and pulley width and check to see if alternator is charging plus trou...Sep 16, 2022 · Get a short piece of wire with an adequate terminal plug on one end, and an o-ring on the other. Plug the wire into terminal 2, and place the o-ring side over the bolt, after the red wire. Tighten the bolt with a nut to connect the two o-rings with the alternator. Terminal 1 should be connected to the gen, battery, or alt dashboard light. A Hitachi Alternator Wiring Diagram is a drawing that shows the electrical connections between all of the components that make up the alternator. It includes diagrams of each individual component as well as diagrams of the overall wiring of the alternator. The diagrams will show which wires go where and indicate the type of each …The voltage regulator completes the circuit thru an internal transistor to ground, via the green wire. This is why it is so important that the case of the voltage regulator is securely grounded. The regulator turns the alternator field current on/off to keep the alternator output voltage at 14.5 volts (+/-) depending on the battery's state of ...The Little League World Series is an international baseball tournament that brings together some of the best young players from around the world. This annual event has been held since 1947, and it has become a major sporting event that attr...First, familiarize yourself with the various components of the diagram. Look for the main connection lines, the alternator itself, the rectifier unit, and other accompanying parts like diodes, resistors, and capacitors. Once you have identified the parts, look for how they are connected. Most diagrams will feature labels or clearly-marked ports ...To run a basic car with points or electronic ignition electric power is needed for the ignition and to power the alternator. That's around 4 amps at 14 Volts. (The power then is 4x14= 56 Watts). With the alternator regulated to produce power at 14 Volts, the alternator output will be 4 amps.Final Verdict 3 Wire Alternator Wiring Diagram The 3 wire alternator wiring diagram has three electrical connections, as its name suggests. The large connector that connects to the battery is the first. The primary current flow charges the battery and drives the car when the engine is running.Begin by connecting the stator and rotor by using the designated wires in the wiring diagram. Make sure the connections are secured tightly and the wires are not crossed or twisted. Once the stator and rotor are connected, you can then connect the regulator. Finally, connect the regulator to the battery and the starter motor.Just get the underhood harness from a 63 thru 66 truck and it all plugs in. Or use the 62 harness and wire it up with a alternator regulator . The easiest is to use a GM internal regulator alternator. use the idiot light wire to excite the internal regulator. or get a internal reg alt that has the one wire conversion. ….

In this video, I go through the process of installing a GM internally regulated alternator in place of a factory-style generator. Using only the power wire, ...Back probe both field terminals at the alternator. With the engine running at 1500 RPM, monitor the wires. One field wire should be between .05 and .5 volts at all times (Pin 1 of Figure 4). If it is greater than .5 volts repair the field ground. If it is 0 volts, then verify voltage on the second field wire and/or test the alternator.The GREEN wire RETURNS alternator's other field connection to the voltage regulator, where the internal transistor grounds the connection thru the case to ground, providing on/off field switching of the alternators field voltage to achieve the nominal 14.5 volt system voltage by the reference connection supplied by the blue wire.The three-wire alternator wiring diagram Denso shows the connection between the alternator and the battery. It starts with the alternator’s positive terminal, then the ignition switch, and finally the battery’s negative terminal. The diagram also includes instructions on how to install the alternator and the battery.You could just connect to big terminal on alternator or bring it up to the + of battery (my preference). fourth, to hook an ammeter up, find where the + large cable from battery goes and then find the other wires going to same terminal (usually solenoid). Remove the smaller wires leaving the big cable connected.It should have a nameplate. The engine wiring diagram is in the operations manual. Bill Murdoch 1988 PSC ... The Electromax alternator has a internal regulator that is meant to be used as a backup. ... There is usually a voltage sense wire from the alternator to the battery (single) although you can look up "1-wire" versus "3-wire" alternator ...3) 4-pin Regulator (A): This type may be found on some motorcycles. In this system, both the ends of the winding go to the Rectifier section which converts AC to DC voltage and then the Regulator section regulates to 14.4V as discussed above. 4) 4-pin Regulator (B): This is the most common type found on motorcycles with single-phase winding.squirrel said: ↑. The early (1962-1972) Delco alternators do not have a voltage regulator in them. The newer 3 wire 10-SI alternators (1973-up) have an internal regulator. you need a voltage regulator. Whether it's inside the alternator, or outside. I have the old external regulator type alternators on a couple of mine, they work great ...The GREEN wire RETURNS alternator's other field connection to the voltage regulator, where the internal transistor grounds the connection thru the case to ground, providing on/off field switching of the alternators field voltage to achieve the nominal 14.5 volt system voltage by the reference connection supplied by the blue wire. Internal regulator 3 wire alternator wiring diagram, The 1-wire alternator uses an internal voltage regulator that self-regulates the alternator’s output and does not need a traditional external voltage regulator. The initial charging rpm threshold of a one wire alternator is often in the 1,200 rpm range, and the pulley ratio on the alternator affects its charging ability., You need a wire from the D+ terminal to a 12v 4 watt globe (small wedge globe or similar) and then a wire from the other end of the globe to a 12v feed from the ignition. Without this connected, or if the globe is blown, the alternator will not charge, If you are using all the standard wiring in the car, check the globe in the dash, it could be ..., A alternator that is capable of either 1 wire or 3 wire connection does no good in hooking up #2 terminal to remote sense, because it is jumpered to the outpost, inside the alternator and you can't unjumper, by adding a external sense wire. You can still hook #1 to the gen light and it will work as an indicator. P.S., C1 & C2 Corvettes - Wiring Diagram/Instructions Needed for 65 327Alternator with Internal Regulator - I removed the external VR and jumped the 4 wires using a plug from the conversion kit. Problem I have is this: 12 v is applied thru the 2 wire input plug to the internal regulator when the ignition switch is off. When..., Schurkey · #16 · Nov 25, 2010. Gotta be careful with the CS130. Rear bearing failure from overheating was epidemic. When the alternator locks up, you won't be able to start the engine without taking the belt off--starter isn't powerful enough to crank the engine when the alternator locks up., The terminal marked "F" on the external regulator connector should go to the terminal marked "2" on the alternator. Again, this preserves the original color code. Some alternators have both the number and a letter identifying the alternator connections. 1 = I; 2 = F; where I represents the Indicator light terminal and F represents the Field ..., This is new alternator and, as stated, new 2-wire voltage regulator. I made sure that he cleaned the firewall and VR and added a ground wire to the engine on one of the mounting bolts. That's one of the reasons I wanted to be able to see the internal wiring, to determine where the field wires should be connected., I did mine as a "3-wire": The Bat terminal back to the solenoid B+, the alternator body (ground) back to the battery B- (probably overkill since the motor ground goes to the same place), and existing wire going back to the old regulator armature and charge light on the dash. There's a diagram of how I did it in my gallery. Hope this helps. John, You will need three wires for your alternator. You can use two of them from the old generator wiring if they are still in good shape. First remove the old voltage regulator. Next cut the 12 GA red jumper wire that connects the VR to the horn relay and also cut and remove the blue field wire., On vehicle voltage regulator connector harness, cut the wire to number one terminal ("1" identified on end frame) and strip ... Plug and seat the weather pack adapter into the alternator regulator opening. 5. If it has a ground lead, place it on ground terminal and tighten nut to 5.0-8.5 Nm (44-75 lb in).Delco Remy strongly recommends ..., 148 satisfied customers. Motorcraft internal regulator alternator-wiring harness has 3 wires. Motorcraft internal regulator alternator-wiring harness has 3 wires: large blk, yellow and green. I am wiring an industrial application. … read more., 12v Motorola Alternator Wiring Diagram. Following is a very rough wiring diagram showing the wiring layout on the power When wiring an alternator with an internal voltage regulator, remove the blue and . The volt 2-watt indicator bulbs are available at any VW parts store. I guess in short I need a wiring diagram for the with a motorola ..., Apr 27, 2010 · 1- can i re-use my stock 1969 alternator fan and pulley. 2- will the 3 wire internal regulator alternator re-use the stock 1969 mounting brackets. 3- Which year/ model of car/truck do i ask for at auto parts store for 3 wire internal alternator. 4- where can i find the wiring instructions for converting to internal ( i would also want my in ... , Step 4. Splice a 10 gauge wire to the larger wire on the alternator plug. Use a solderless butt connector to make the splice. Make the wire long enough to connect to the same terminal on the starter solenoid as the …, This diagram will show you how the ammeter should be wired into the alternator. It will also provide you with the information you need to determine the type of wiring you'll need to connect the ammeter to the battery or alternator. The wiring diagram will also provide you with the wiring colors you'll need to properly connect the ammeter., Basically you make two "U's" outside to outside and inside to inside if I remember right. And remove the blue & white wires from the existing alt plug, wrap each in shrink tubing, and plug the blue wire into #1 terminal, and white into #2 terminal. Or you can buy an adapter for 10DN to 10SI., Voltage on alternator post is 12.3. Voltage on the "A" (regulator) connection wire (blue colored wire) that runs to the "hot" side of the solenoid is 12.3. Voltage on the "I" (regulator) connection wire (brown colored wire) that runs to the ignition/keyswitch is 12.3. The ground from the alt to the frame is tight, and on bare metal at the frame., Nov 30, 2017 · A Step-by-Step Guide. Wiring your 1972 Chevy C10 alternator isn’t a difficult process and doesn’t require any special tools. To start, you’ll need to make sure the battery is disconnected. Then, you’ll refer to the wiring diagram and connect the wires for the alternator to their corresponding terminals. It’s important to follow the ... , Contents If your vehicle's alternator has a constantly higher or lower than the normal output voltage, you may need to rewire the voltage regulator. A voltage regulator is an internal component in newer alternators, in which case you will not need to rewire it but either repair or replace it., This type of wiring diagram helps to ensure that the alternator is connected properly to the battery and other electrical components. The Delco Remy Alternator is one of the most popular types of alternators used in modern vehicles. It is designed to be both reliable and efficient., easy connection of alternator with external voltage regulator., The large output stud of the alternator should be marked B+ or something similar. This goes to two places - one heavy-gauge wire with a fusible link goes to the battery-side of the solenoid; another wire goes to the A terminal of the voltage regulator. The latter is the sense input to the regulator., Understanding alternator wiring. The alternator on a 2018 mitsubishi outlander along with many other vehicles has a 4 wire connector going to it. They are labelled as follows: Ground - is self explanatory. Sense - is the input that the alternator is suppose to use to regulate its output voltage with. Lamp - is suppose to allow the alternator to ..., GTO44 · #5 · Mar 28, 2022. '71SB409 said: Yessir. All you need coming off the alt is 1 heavy gauge wire off the main stud. That one wire you can run thru your midi fuse and then to that battery. The diagram you posted shows the fuse block power splitting and one side running to alt tab and one side to the battery., 02-15-2012 18:59:35. Re: Ford Tractor Alternator wiring Diagram in reply to Roger Martin, 02-15-2012 18:18:45. That picture shows an internally regulated alternator, there would be no field wire, there should only be B+ battery wire, an ignition wire, and maybe an idiot light wire., The 24-volt alternator wiring diagram provides a comprehensive view of the electrical wiring associated with the system. It helps the technician identify potential problems quickly and easily, allowing any necessary modifications or repairs to be made with accuracy and precision. Furthermore, troubleshooting is made far easier since the wiring ..., In this video, I go through the process of installing a GM internally regulated alternator in place of a factory-style generator. Using only the power wire, ..., Overview of 3 Wire Alternator Wiring Diagram Denso. The three-wire alternator wiring diagram Denso shows the connection between the alternator and the battery. It starts with the alternator’s positive terminal, then the ignition switch, and finally the battery’s negative terminal. The diagram also includes instructions on how to install the ..., Understanding alternator wiring. The alternator on a 2018 mitsubishi outlander along with many other vehicles has a 4 wire connector going to it. They are labelled as follows: Ground - is self explanatory. Sense - is the input that the alternator is suppose to use to regulate its output voltage with. Lamp - is suppose to allow the alternator to ..., In this video, I go through the process of installing a GM internally regulated alternator in place of a factory-style generator. Using only the power wire, ..., Alternators have built-in voltage regulators so we modify our wiring to account for this. Alternator conversion Wiring Diagram ... 3", "Thing", "Rabbit ..., The short must be repaired before the charging system can be checked. 3) Disconnect the alternator wiring harness. (a) If the light goes out, the alternator is bad. (b) If the light stays on, pull each fuse until the light goes out (this will tell you which component is shorted). 2., The main advantage of either unit is they employ an internal voltage regulator (SI stands for system integrated). But this is not a simple bolt-on conversion. The 10- and 12-SI units use a different two-wire connector plug on the rear of the alternator. The Number 1 wire on the 10- or 12-SI is connected to the charge warning light on the dash.