10Si and 12Si Series Alternator for Tractor or Antique Vehicle Conversion

10Si and 12Si Series High Output Alternators for Tractor and Antique Vehicle Conversion

For those who want HIGH AMP POWER from their Alternator but don't want to install an upgrade kit; we have the answer with our Complete High Amp Alternators. Each alternator is assembled with care using only Top Quality Brand New Components, except stator and rotor may be rewound, and upgraded to the higher amp specifications. Our Alternators are also covered by our 12 month unlimited mileage limited warranty. Sold outright, so you don't have to mess with a core or core charge. The alternators listed below are placed according to the years they were used with the most recent versions at the top of the page.


1983-1986 Delco Remy Type 12Si Series Internal Regulator, External Fan Alternator

The 12Si series alternator has the same outside dimensions as the 10Si series alternator (shown below) and will fit in it's place without modification. The 12Si series alternator has several design improvements over the 10Si series that make it the better choice between the two.

Improvements include:
  • Larger Rectifier to handle higher amperage
  • Wider Stator and Rotor:
    • Improved Magnetism for better Low End Output
    • Increased Mass for better Heat Dissipation
  • Larger Cooling Holes at back for better cooling of Rectifier, Stator and Other Internal Components
  • High Volume Axial Turbo Fan for Greater Air Flow through the alternator
12si series alternator

 

Available in several amperage levels both standard hookup and self exciting (one wire) voltage regulators.

Unlike the competition, our Si series, self-exciting alternators include a special low-speed activation circuit. You don't need to rev the engine to get the alternator charging!

If You Want Superior Low End Output and Greater Reliability Check Out the 140,170 and 200 amp CS-144 Alternator... GM's #1 Factory Oversize High Output Alternator. Click Here, We May Have One For Your Vehicle


Click Here for Rear View of 12Si Series Alternator
Universal Alternator Mounting Brackets and Accessories

 

Makes Alternator Adaptation Easy

Extra shipping charges will apply on orders outside mainland USA

If You Want Superior Low End Output and Greater Reliability Check Out the 140,170 and 200 amp CS-144 Alternator...
GM's #1 Factory Oversize High Output Alternator. Click Here, We May Have One For Your Vehicle

 

Standard Hookup (requires plug with ignition wire to activate alternator)

 

$99.95 ..D1-7273-94...94 Amp 12Si Series Internal Regulator Alternator
$119.95 ..D1-7273-105...105 Amp 12Si Series Internal Regulator Alternator
$149.95 ..D1-7273-140...140 Amp 12Si Series Internal Regulator Alternator
$189.95 ..D1-7273-170...170 Amp 12Si Series Internal Regulator Alternator


One Wire (Self Exciting) What is One-wire (self exciting) alternator?

$109.95 ..D1-7273-94-SE..94 Amp 12Si Series Self Exciting Internal Regulator
$129.95 ..D1-7273-105-SE..105 Amp 12Si Series Self Exciting Internal Regulator
$169.95 ..D1-7273-140-SE..140 Amp 12Si Series Self Exciting Internal Regulator
$219.95 ..D1-7273-170-SE...170 Amp 12Si Series Internal Regulator Alternator

 


 

1971-1985 Delco-Remy type 10Si Series Internal Regulator Alternator

The 10Si series alternator was the first internal Regulator Alternator widely used by GM. The Si stands for Systems Integrated" which means the alternator has the voltage regulator built inside the alternator. As opposed to the earlier 10DN series alternator which was an externally regulated alternator. The 10 SI alternator was the most common standard equipment alternator installed on GM cars & light Trucks from the early to late 70's. It was also used extensively in other applications such as Industrial Equipment, Marine, Agricultural, and other applications.

10si series alternator


Universal Alternator Mounting Brackets and Accessories

Makes Alternator Adaptation Easy
Standard Hookup, (requires plug with ignition wire for activation of alternator)

10Si Series 12 Volt Standard Voltage Regulator Negative Ground Alternators
add price part # description
 
$89.95 D110Si12V63 63 Amp. Delco-Remy 10-SI type Regulator Alternator
 
$129.95 D110Si12V105 105 Amp. Delco-Remy 10-SI type Internal Regulator Alternator.
 
$169.95 D110Si12V140 140 Amp. Delco-Remy 10-SI type Internal Regulator Alternator, Standard Hookup.

One Wire (Self Exciting) What is One-wire (self exciting) alternator?

10Si Series 12 Volt Self Exciting Voltage Regulator Negative Ground Alternators
add price part # description
 
$99.95 D110SiSE12V63 63 Amp. Delco-Remy 10-SI type Self Exciting Internal Regulator Alternator
 
$139.95 D110SiSE12V105 105 Amp. Delco-Remy 10-SI type Self Exciting Internal Regulator Alternator
 
$179.95 D110SiSE12V140 140 Amp. Delco-Remy 10-SI type Self Exciting Internal Regulator Alternator