1. Car & Truck Manual Transmission Parts Deals
  2. sku: 8436204940358682
  3. ACDELCO 8642331

ACDELCO 8642331 Automatic Transmission Reaction Sun Gear 036666109160

fits model: 1500, Silverado. make: Chevy. year: 1999–2013.

8642331 Acdelco For Chevy Silverado 1500 99-13 Automatic Transmission Reaction Sun Gear Shell

( Brand: Acdelco ), ( Manufacturer Part Number: 8642331 ), ( Part Type: Transmission Sun Gear ), ( Product Type: Transmission ), ( UPC: 036666109160 ), ( Fitment Type: Direct Replacement ), ( Compatible Make S : Chevrolet, Gmc, Cadillac, Pontiac, Hummer, Buick, Oldsmobile ), ( Compatible Model S : Silverado 1500, Silverado 1500 Classic, Silverado 2500, Camaro ), ( Fitnote: Transmissionmfrcode ), ( Product Subtype: Transmission Shafts Gears ), ( Product Details: Automatic Transmission Reaction Sun Gear Shell Thrust Washer ), ( Engine Version: 262 Chevy 90-degree V6 ), ( Series: Genuine Gm Parts ), ( Department: Replacement )

Review ACDELCO For Chevy Automatic Transmission Reaction Sun Gear Shell fits SILVERADO 1500 1999–2013

The ACDelco 8642331 is a premium quality automatic transmission sun gear designed specifically for Chevrolet Silverado 1500 models from 1999 to 2013. This vital transmission component is essential for the proper functioning of the automatic transmission system.

The sun gear is the largest gear in the planetary gear set of an automatic transmission. It is responsible for transferring engine power to the planetary gears, which then engage the various transmission ratios. The ACDelco 8642331 sun gear is precision engineered and manufactured to meet or exceed OE specifications for fit, form, and function.

The sun gear is made of high-strength steel material, ensuring durability and reliability. Its tooth geometry is designed to provide smooth and efficient power transfer between the engine and transmission. The sun gear also features a robust spline design, which ensures a secure and positive connection to the transmission input shaft.

The ACDelco 8642331 sun gear is engineered with a robust design to ensure longevity and durability. It is subjected to rigorous testing to ensure that it meets or exceeds OE performance standards. The gear is also coated with a protective finish to prevent corrosion and wear.

Installing the ACDelco 8642331 sun gear in your Chevrolet Silverado 1500 automatic transmission system is a straightforward process. It is recommended that the installation is performed by a certified technician to ensure proper fitment and function. Using the wrong sun gear can result in transmission damage and failure, leading to costly repairs.

In conclusion, the ACDelco 8642331 sun gear is a high-quality, reliable, and durable component designed specifically for the automatic transmission system of Chevrolet Silverado 1500 models from 1999 to 2013. It is engineered to meet or exceed OE specifications for fit, form, and function, ensuring smooth and efficient power transfer between the engine and transmission. By using this premium ACDelco product, you can enjoy peace of mind knowing that your transmission system is in good hands.

The ACDelco 8642331 is a sun gear for the automatic transmission of certain Chevy Silverado 1500 models from 1999 to 2013. Here are some potential pros and cons if you're considering purchasing this part.

Pros:

1. Brand reputation: ACDelco is a well-known and reputable automotive parts manufacturer. Their products are often OE (original equipment) quality and come with warranties.

2. OE fit: This sun gear is designed to fit specific Chevy Silverado 1500 models, ensuring a proper fit and function.

3. Availability: ACDelco parts are widely available at auto parts stores and online retailers, making it convenient to purchase and have it shipped to you.

Cons:

1. Cost: ACDelco parts, while generally of good quality, can be more expensive than aftermarket alternatives. In some cases, the cost difference might not be justified, depending on your budget.

2. Installation: Installing a transmission sun gear can be a complex and time-consuming process. It may require specialized tools and expertise, which could add to the overall cost and hassle.

3. Possible need for additional parts: Depending on the condition of your transmission, you might need to replace other parts besides the sun gear. This could increase the overall cost of the repair.

In conclusion, the ACDelco 8642331 sun gear for the Chevy Silverado 1500 automatic transmission offers the advantage of a reputable brand and OE fit. However, it comes at a higher cost compared to some aftermarket alternatives, and the installation process can be complex. Ultimately, the decision to purchase this part depends on your budget, your level of mechanical expertise, and the condition of your transmission.

If you're confident in your ability to install the part yourself and value the peace of mind that comes with a reputable brand, then purchasing the ACDelco 8642331 might be the right choice for you. Alternatively, if you're looking to save on cost, you might consider exploring aftermarket alternatives or consulting with a mechanic to determine if other parts might also need to be replaced.

Details:

Made from high-quality materials for ultimate durability. Genuine GM Parts Automatic Transmission Reaction Sun Gear Shell Thrust Washer by ACDelco. With many years of manufacturing experience, ACDelco is the name you can trust. Programming required: No.

Manufactured to meet or exceed strict quality requirements. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Outside Diameter: 3.22. Specifications: Remanufactured: No.

Right for your vehicle and lifestyle. Color: Black

Type: Reaction Sun Gear Shell Thrust Washer. Vintage Part Indicator: N. Features: designed to deliver trouble-free, consistent performance. Inside Diameter: 2.7008.

part #: 8642331 prices

  • $8.95-$9.99

specifications manutransmission:

  • for models: 1500, Silverado
  • for makes: Chevy
  • for years: 1999-2013
  • brand: Acdelco
  • mpn: 8642331
  • part type: Transmission Sun Gear
  • product type: Transmission
  • upc: 036666109160
  • fitment type: Direct Replacement
  • compatible make s : Chevrolet, Gmc, Cadillac, Pontiac, Hummer, Buick, Oldsmobile
  • compatible model s : Silverado 1500, Silverado 1500 Classic, Silverado 2500, Camaro
  • fitnote: Transmissionmfrcode
  • product subtype: Transmission Shafts Gears
  • product details: Automatic Transmission Reaction Sun Gear Shell Thrust Washer
  • engine version: 262 Chevy 90-degree V6
  • series: Genuine Gm Parts
  • department: Replacement

general manutransmission:

  • Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
  • condition: New

payments manutransmission:

  • other
  • credit card: Diners-club
  • wallet: Paypal

seller manutransmission:

  • city: Saint Paul, Minnesota
  • rating: 98.0%
  • # reviews: 131627

offer manutransmission:

  • sold: 0
  • started: October 2, 2025
  • quantity: 5
  • options: Ship-to-home
  • availability: In Stock

returns manutransmission:

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

shipping manutransmission:

  • service: FedEx Ground / FedEx Home Delivery
  • type: Calculated
  • cost: $16.88
  • carrier: FedEx
  • class: Standard
  • transit: 3-7 Days
for models: 1500, silverado, for makes: chevy, for years: 1999-2013, part type: transmission sun gear, product type: transmission, fitment type: direct replacement, compatible make s: chevrolet, gmc, cadillac, pontiac, hummer, buick, oldsmobile, compatible model s: silverado 1500, silverado 1500 classic, silverado 2500, camaro, fitnote: transmissionmfrcode, product subtype: transmission shafts gears, product details: automatic transmission reaction sun gear shell thrust washer, engine version: 262 chevy 90-degree v6, series: genuine gm parts, department: replacement,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, sku: 8436204940358682,

Acdelco 8642331 Is Similar To:

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2 offers $8.95–$9.99 USD
  • Offer #1: $8.95 price + $0.00 shipping estimate = $8.95* total. Shipping is included in the United States! Other parts and filters are available NOS Genuine ACDelco Trans Thrust Washer.FREE SHIPPING
  • Offer #2: $9.99 price + $0.00 shipping estimate = $9.99* total. It is designed to fit perfectly and function just like the original equipment. This Genuine ACDelco washer, part number , is a high-quality replacement for your car's automatic transmission system.FREE SHIPPING

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