1. Starters, Alternators, ECUs & Wiring Offers
  2. sku: 8862814083574771
  3. CHEVROLET 3902102

CHEVROLET 3902102 Gm Alternator Bracket 3881254 V8

fits model: 366, 427. make: Chevy, Gmc, Chevrolet. year: 1966-74.

3902102 Chevrolet Gm Alternator Bracket 1966-74 Chevy Gmc Medium Duty Truck 366 427 V8 Oem

( Brand: Chevrolet ), ( Part Type: Bracket Alternator ), ( Ipn: 3881254 ), ( Manufacturer Part Number: 3902102 ), ( Vintage Part: Yes ), ( Country/region Of Manufacture: United States )

Review CHEVROLET Gm Alternator Bracket Chevy Gmc Medium Duty Truck V8 Oem fits 366 427 1966-74

The Chevrolet 3902102 GM Alternator Bracket is a crucial component for vehicles equipped with 1966-74 Chevy or GMC 366, 427 V8 engines. Designed by General Motors, this bracket provides the necessary support to securely mount the alternator in place.

This bracket is manufactured with high-quality steel, ensuring durability and reliability. Its robust design can withstand the rigors of regular use, making it an ideal replacement for worn-out or damaged original parts. It is engineered to fit perfectly with the specified engine models, offering a precise fit that eliminates vibrations and ensures optimal alternator performance.

The alternator bracket comes with pre-drilled mounting holes, which simplifies the installation process. The holes align with the factory mounting points, allowing for a hassle-free installation experience. Additionally, the bracket is finished with a durable powder coat, which not only enhances its appearance but also protects it from corrosion and rust.

Installing this bracket is a straightforward process. Simply remove the old alternator bracket, align the new one with the engine and alternator, and secure it in place using the provided hardware. The entire installation can typically be completed in under an hour, making it a convenient solution for DIY enthusiasts and professional mechanics alike.

The Chevrolet 3902102 GM Alternator Bracket is an essential component for maintaining the electrical system of your 1966-74 Chevy or GMC 366, 427 V8 engine vehicle. By ensuring a secure and stable alternator mounting position, this bracket helps guarantee a reliable and consistent power supply, keeping your vehicle running smoothly and efficiently.

Pros and Cons of Buying a Chevrolet 3902102 GM Alternator Bracket for 1966-74 Chevy GMC 366 427 V8

1. Pros:

a. Designed specifically for 1966-74 Chevy GMC 366 427 V8 engines, ensuring a perfect fit.

b. Manufactured by General Motors, ensuring high-quality and reliability.

c. Helps secure the alternator properly, preventing vibrations and potential damages.

d. Can save time and money by avoiding custom fabrications or modifications.

2. Cons:

a. May require additional hardware or modifications to install, depending on the vehicle's condition.

b. Some customers have reported receiving damaged or incorrect parts.

c. Possible waiting time for delivery if not in stock at local auto parts stores.

d. Slightly more expensive than aftermarket alternatives.

Conclusion:

The Chevrolet 3902102 GM Alternator Bracket for 1966-74 Chevy GMC 366 427 V8 engines offers several advantages, including a perfect fit, high-quality manufacturing, and the peace of mind that comes with buying from a trusted manufacturer. However, it may come with some drawbacks, such as additional installation requirements, potential delivery delays, and a higher price tag compared to aftermarket alternatives. Ultimately, the decision to purchase this part depends on your budget, time constraints, and preference for original equipment or aftermarket components.

Recommendation:

If you prioritize a perfect fit, high-quality manufacturing, and the assurance of purchasing from a trusted source, the Chevrolet 3902102 GM Alternator Bracket is a solid choice for your 1966-74 Chevy GMC 366 427 V8 engine. However, if you're on a tight budget or have the time and resources to explore aftermarket alternatives, it may be worth considering those options as well. In any case, make sure to double-check the compatibility and availability of the part before making a purchase.

part # 3902102 prices

  • $25.00-$49.88

specifications wiringwench:

  • for models: 366, 427
  • for makes: Chevy, Gmc, Chevrolet
  • for years: 1966-74
  • brand: Chevrolet
  • part type: Bracket Alternator
  • interchange part number: 3881254
  • manufacturer part number: 3902102
  • vintage part: Yes
  • country/region of manufacture: United States

general wiringwench:

  • Car Truck Parts Accessories > Starters, Alternators, ECUs Wiring > Other Starters, Alternators, ECUs Wiring
  • condition: Used

offer wiringwench:

  • options: Ship-to-home
  • started: October 8, 2025
  • quantity: 1
  • availability: In Stock
  • sold: 0
  • best offers: True

returns wiringwench:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller

seller wiringwench:

  • # reviews: 18432
  • rating: 98.9%

shipping wiringwench:

  • service: USPS Ground Advantage
  • class: Standard
  • type: Fixed
  • cost: $12.00
  • transit: 3-10 Days
  • carrier: USPS

payments wiringwench:

  • wallet: Apple-pay
  • credit card: Mastercard
  • other
  • money order
for models: 366, 427, for makes: chevy, gmc, chevrolet, for years: 1966-74, part type: bracket alternator, vintage part: yes, country/region of manufacture: united states,
category: auto parts > car truck parts accessories > starters, alternators, ecus wiring, sku: 8862814083574771,

Chevrolet 3902102 Is Similar To:

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5 offers $25.00–$49.88 USD
  • Offer #1: $49.88 price + $24.80 delivery = $74.68* total. PLEASE REVIEW THE PHOTOS REMOVED FROM A BIG BLOCK 427 TALL DECK ENGINE.+$24.80 shipping
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  • Offer #4: $75.00 price + $20.00 delivery = $95.00* total. This bracket assembly is in excellent unmodified original condition.+$20.00 shipping
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