1. Car & Truck Parts Accessories Offered
  2. sku: 16968134661719721
  3. TIMKEN SX-8370

TIMKEN SX-8370 Rear Differential Pinion Seal Driveline Qs

fits model: 2500, Sierra. make: Gmc. year: 2003–2004.

Sx-8370 Timken Rear Differential Pinion Seal For 2003-2004 Gmc Sierra 2500 Driveline Qs

( Brand: Timken ), ( Manufacturer Part Number: SX-8370 ), ( Manufacturer Warranty: 1 Year ), ( Ipn: C176 53-37 ), ( Placement On Vehicle: Driveline Axles Gaskets Sealing Systems ), ( Compatible Model: Sierra 2500 ), ( Compatible Year: 2004 2003 ), ( Core Charge: Free No Core Charge ), ( Position: Rear ), ( Type: Differential Pinion Seal ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Timken Differential Pinion Seal )

Review TIMKEN Rear Differential Pinion Seal For Gmc Driveline Qs fits SIERRA 2500 2003–2004

Introducing the Timken SX-8370 rear differential pinion seal, an essential component for maintaining the driveline's performance and longevity in 2003-2004 GMC Sierra 2500 trucks. This seal is specifically engineered for the heavy-duty demands of these vehicles, providing reliable protection against differential fluid leakage and contamination.

The Timken SX-8370 seal is a high-quality, engineered seal designed to deliver exceptional sealing performance. It is made from a durable, flexible material that can withstand the extreme loads and pressures encountered in heavy-duty applications. The seal's precise shape ensures a perfect fit, providing a leak-free seal that protects against the intrusion of contaminants.

The pinion seal is a critical component in the driveline, as it seals the area between the pinion shaft and the differential housing. A worn or leaking pinion seal can result in a loss of differential fluid, leading to decreased performance, increased wear, and potential damage to other driveline components. Replacing the seal with a new, high-quality option like the Timken SX-8370 is an essential maintenance step for ensuring the longevity and optimal functioning of your vehicle's driveline.

Installing the Timken SX-8370 rear differential pinion seal is a straightforward process, typically involving the removal of the differential cover and the old seal. However, if you're not confident in your ability to perform the installation yourself, it is recommended to consult a professional mechanic to ensure the job is done correctly.

By choosing the Timken SX-8370 rear differential pinion seal, you can enjoy peace of mind knowing that your GMC Sierra 2500's driveline is protected against leaks and contamination. This seal is backed by Timken's reputation for quality and reliability, ensuring that you're investing in a product that will perform flawlessly for thousands of miles to come.

Buying a Timken SX-8370 rear differential pinion seal for a 2003-2004 GMC Sierra 2500 can be a worthwhile investment if you're experiencing leaks or other issues with your differential. Here are some pros and cons to consider before making a purchase:

Pros:

1. High-quality product: Timken is a well-known brand in the automotive industry, and their SX-8370 pinion seal is designed to provide superior sealing performance and durability.

2. OEM-style fit: This seal is specifically engineered to fit 2003-2004 GMC Sierra 2500 models, ensuring a precise fit and proper function.

3. Long-lasting: The SX-8370 seal is made from advanced materials that can withstand the demands of heavy-duty applications, reducing the need for frequent replacements.

4. Improved performance: A leaking differential can lead to decreased performance and increased wear on other drivetrain components. Replacing the seal can help restore proper function and extend the life of your differential.

Cons:

1. Cost: Timken's OEM-style pinion seals can be more expensive than aftermarket alternatives. However, the increased quality and durability may be worth the investment for those who want peace of mind and long-term performance.

2. Installation: Installing the seal can be a complex process, and it may require specialized tools and knowledge. It's recommended to have the seal replaced by a professional mechanic to ensure proper installation and avoid any potential complications.

In conclusion, buying a Timken SX-8370 rear differential pinion seal for a 2003-2004 GMC Sierra 2500 can offer several advantages, including improved sealing performance, long-lasting durability, and OEM-style fit. However, the higher cost and complex installation process are important considerations. Ultimately, if you're experiencing issues with your differential or want to prevent potential problems down the line, investing in a high-quality seal like the Timken SX-8370 may be worth the expense. It's always a good idea to consult with a qualified mechanic to determine if this is the best solution for your specific situation.

Details:

Timken Rear Differential Pinion Seal for 2003 - 2004 GMC Sierra 2500 Driveline qs: Status: In Stock.

part #: sx8370 prices

  • $15.87-$61.61

specifications parthick:

  • for models: 2500, Sierra
  • for makes: Gmc
  • for years: 2003-2004
  • brand: Timken
  • mpn: Sx-8370
  • manufacturer warranty: 1 Year
  • ipn: C176 53-37
  • placement on vehicle: Driveline Axles Gaskets Sealing Systems
  • compatible model: Sierra 2500
  • compatible year: 2004 2003
  • core charge: Free No Core Charge
  • position: Rear
  • type: Differential Pinion Seal
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Timken Differential Pinion Seal

seller parthick:

  • rating: 99.7%
  • # reviews: 666745
  • city: Indianapolis, Indiana

shipping parthick:

  • transit: 2-6 Days
  • type: Fixed
  • cost: $0.00
  • service: Standard, Expedited
  • class: Standard, Expedited

returns parthick:

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

general parthick:

  • Parts Accessories > Car Truck Parts Accessories > Other Car Truck Parts Accessories
  • condition: New

offer parthick:

  • quantity: 5
  • started: June 11, 2026
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home

payments parthick:

  • credit card: Diners-club
  • wallet: Apple-pay
  • other
for models: 2500, sierra, for makes: gmc, for years: 2003-2004, manufacturer warranty: 1 year, placement on vehicle: driveline axles gaskets sealing systems, compatible model: sierra 2500, compatible year: 2004 2003, core charge: free no core charge, position: rear, type: differential pinion seal, fitment type: direct replacement, bundle description: 1 pc genuine timken differential pinion seal,
category: auto parts > car truck parts accessories, sku: 16968134661719721,

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