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105Amp 1 Wire System GM Self-Exciting Alternator for 10SI SBC BBC

  • Based on 166 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Oct 27
Order within 18 hours and 26 minutes
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Features

  • PLUG & PLAY IN 10 MINUTES: True one-wire hookupjust connect BAT+ to battery. No ignition switch, idiot light, or voltage-sensing wires. Finally ditch your factory rats-nest wiring!
  • DIRECT GM 10SI REPLACEMENT: Bolts straight into factory brackets on Small Block (SBC) & Big Block (BBC) for Chevys (for Camaro/Corvette/C10 Trucks), for GMC, for Cadillac, for Buick. Zero modifications needed
  • SELF-ACTIVATING & RELIABLE: Starts charging at 1,000 RPM (rev once after installdone!). Precision voltage regulator maintains 14.2V (0.5V) even in Death Valley heat or Alaskan cold
  • BUILT FOR AMERICAN MUSCLE: Industrial-grade copper windings, triple-sealed bearings & Pro-spec diodes. outlasts stock units 3:1. Looks stock, performs like a beast
  • POWER YOUR HOT ROD UPGRADES: 105A output (+40% over stock) handles electric fans, killer sterfor EOS, and off-road lights. No more dimming headlights at idle!

Description

Parameters: 1 Groove Pulley is compatible with the original equipment belt, and the high-specification material ensures the belt runs well. NOTE: Please make sure to connect correctly. Improper installation may cause the belt to be twisted incorrectly Ensure that the installation conditions of the original equipment are fully matched. There is a bolt protection bushing at the bracket installation position. The bushing of some models may be 0.05-0.10mm higher. It is not incompatible and can be adjusted appropriately The solid shell protection is the prerequisite for driving in harsh environment, and the alloy die-cast shell provides ASTOU Alternator with more stable power generation interface has a high melting point and excellent heat resistance, oil resistance, and aging resistance, ensuring the reliability and durability of the interface in harsh environments For more adaptation information, please refer to the vehicle model manager 7127-SE105; ADR0335; 400-12340; 20-102-7

Manufacturer: ‎ASTOU


Brand: ‎ASTOU


Model: ‎for Chevy Three Wires 10SI Self-exciting SBC BBC GM Alternator


Item Weight: ‎11.22 pounds


Package Dimensions: ‎10 x 9.72 x 7.76 inches


Item model number: ‎GM 10SI SBC BBC Alternator


Exterior: ‎‎Machined


Manufacturer Part Number: ‎110601-551


OEM Part Number: ‎240-204-3D,7127-SE105,21-7127-SE105


Position: ‎Inner


Special Features: ‎100 Amp/12 Volt, CW, 1-Groove Pulley, 1-Wire System,10SI Series IR/EF


Voltage: ‎12 volts


Date First Available: June 1, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great upgrade from a Generator to an alternator
This alternator works perfectly as described. I updated a Massey Ferguson 50 tractor from a generator to this 1 wire alternator. I had to modify and use the larger original pulley from the generator. It maintains the same RPM. And when you start the tractor and at 800rpm you can see the ammeter jumps to show charging the battery. The voltage regulator included with the alternator functions perfectly. No more charging issues or dead battery. Very happy. Great price!!! You have to modify it a bit for it to work just right for my 1960 tractor. I'm pretty handy, so no problem for me. Love the results. ... show more
Reviewed in the United States on June 19, 2026 by Beck

  • Nice
Good part got me out of a bind five stars.
Reviewed in the United States on July 16, 2026 by Dustinrobb

  • 🙏
Just installed it yesterday and it seemed to work just fine. Has a weird noise though.
Reviewed in the United States on June 5, 2026 by NasMas

  • Better than a 3 wire
Works fantastic! So much easier to wire up on a tractor than a 3 wire alternator with external regulator. With minimal modifications to the mounting and a belt change, it was pretty simple. Charges quickly and keeps me going while working in the fields. Thank you very much!
Reviewed in the United States on July 29, 2026 by Keith B.

  • Not worth it.
Out of the box the alternator makes a high pitched whine from very thin cooling blades. Should have been a bit heavier gauge on it. Probably less than 1k miles and now the bearings are squealing. Was cheap to get me by, but figured I would get at least a few years out of it.
Reviewed in the United States on June 18, 2026 by Matthew

  • Worked
Worked great out of the box...just hope it lasts.
Reviewed in the United States on August 30, 2026 by Windsurfer

  • Whining noise
Works goodbut it does have a whining sound not terrible but noticeable
Reviewed in the United States on December 22, 2025 by Amazon Customer

  • 135 Massey F great fit and 13.8 volts
put it on the ole 135 MF tractor was a perfect fit no issues, put out 13.8 volts at the battery, perfect as far as i am concerned.
Reviewed in the United States on March 6, 2026 by Da Hall

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