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AAM 26064028 Differential Pinion Seal - GM 8.6
AAM 26064028 Differential Pinion Seal - GM 8.6
AAM 26064028 Differential Pinion Seal - GM 8.6
AAM 26064028 Differential Pinion Seal - GM 8.6
American Axle & Manufacturing

AAM 26064028 Differential Pinion Seal - GM 8.6" Rear Axle 99-08

$31.68 In Stock Sold out
SKU: 26064028
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  • Description
  • Fitment
  • Warranty and Refund
  • Reviews

Keep your GM 8.6" rear differential sealed and protected with the American Axle & Manufacturing 26064028 Pinion Seal. Built for 1999-2008 trucks and SUVs across Chevrolet, GMC, Buick, and Isuzu lineups, this new-condition seal is designed to fit the rear axle pinion housing precisely, helping prevent gear oil leaks that can lead to premature differential wear. With 62 verified vehicle applications spanning Silverado, Sierra, Avalanche, Trailblazer, Rainier, Ascender, Blazer, S10, and SSR models, it's a straightforward, targeted replacement part for anyone servicing a GM 8.6" rear axle. Backed by AAM's manufacturer warranty and shipped in a compact, easy-to-handle package, this pinion seal is a practical addition to any differential service or rear axle rebuild.

Notes

Pinion Seal, GM 8.6" Rear axle 99-08

Features

  • Direct-fit design for GM 8.6" rear axles helps restore a proper pinion seal against leaks.
  • Verified across 62 applications (1999-2008) for confident fitment on covered GM and Isuzu models.
  • New-condition AAM part supports a full differential service without relying on worn seals.
  • Compact, lightweight packaging simplifies storage and handling for shop or DIY installs.
  • Backed by AAM's limited manufacturer warranty for added purchase confidence.

Application Summary

1999 Chevrolet Silverado 1500 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS
1999 GMC Sierra 1500 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS
2000, 2003 Chevrolet S10 2.2L 2190CC 134CID L4 OHV 8 Valve Naturally Aspirated GAS
2000, 2003 GMC Sonoma 2.2L 2190CC 134CID L4 OHV 8 Valve Naturally Aspirated GAS
2000-2003 GMC Jimmy 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS
2000-2005 Chevrolet Blazer 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS
2001, 2004 Chevrolet S10 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS
2001, 2004 GMC Sonoma 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS
2001-2003, 2005-2006 Chevrolet Silverado 1500 HD 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS
2001-2003, 2005-2006 GMC Sierra 1500 HD 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS
2002 Chevrolet S10 2.2L 2190CC 134CID L4 OHV 8 Valve Naturally Aspirated FLEX
2002 GMC Sonoma 2.2L 2190CC 134CID L4 OHV 8 Valve Naturally Aspirated FLEX
2002-2004 Chevrolet Avalanche 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS
2002-2005 Chevrolet Trailblazer EXT 4.2L -CC 256CID L6 DOHC 24 Valve Naturally Aspirated GAS
2003, 2005-2008 Isuzu Ascender 4.2L -CC 256CID L6 DOHC 24 Valve Naturally Aspirated GAS
2003-2004 Chevrolet SSR 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS
2004 Isuzu Ascender 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS
2004-2005 GMC Jimmy 4.3L 4294CC -CID V6 OHV 12 Valve Naturally Aspirated GAS
2004-2007 Buick Rainier 4.2L -CC 256CID L6 DOHC 24 Valve Naturally Aspirated GAS
2005-2006 Chevrolet Avalanche 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated FLEX
2005-2006 Chevrolet SSR 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS
2006 Chevrolet Trailblazer EXT 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS
2007 Chevrolet Silverado 1500 Classic 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS
2007 Chevrolet Silverado 1500 HD Classic 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS
2007 GMC Sierra 1500 Classic 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS
2007 GMC Sierra 1500 HD Classic 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS
Part Numbers: 26064028

Specifications

  • Brand: American Axle & Manufacturing
  • Part Number: 26064028
  • Part Type: Differential Pinion Seal
  • GTIN: 00840382503788
  • Package Dimensions: 4.0000 x 4.0000 x 1.5000 IN
  • Package Weight: 0.1500 PG
  • Package Quantity: 1 EA
  • Housing Bore: 70.145
  • Housing Bore: 70.26
  • Shaft Diameter: 53.64

Warranty

  • Warranty Type: Limited
  • Warranty Duration: 1X Years
  • Warranty Description: Limited, see demandaam.com

Returns

30-Day Money-Back Guarantee

We want you to be completely satisfied with your purchase! If you are not happy for any reason, you may return the item within 30 days for a refund, minus shipping fees, provided that: The part is brand new, uninstalled, and undamaged in any way.

To initiate a return, please contact us or email support@mizumoauto.com for a Return Authorization Number (RMA) and the return shipping address. Returns without an RMA number will be refused and returned to you at your expense.

Return Requirements:

  • Items must be securely packed in the original manufacturer's packaging.
  • All original materials must be included, such as hardware, manuals, protective caps, wrapping, and instructions.
  • You must obtain and retain the tracking number for your return.

Non-Returnable Items:

  • Piston rings, main bearings, and rod bearings are non-returnable if the manufacturer’s seal or shrink-wrapped plastic has been opened. No exceptions—this ensures the integrity of the parts you receive.

We are not responsible for lost or damaged returns. If your return is lost or damaged during shipping, a refund cannot be issued, as the item cannot be resold or returned to the supplier. Please file a claim directly with your shipping carrier for reimbursement.

Refunds are processed within 1-2 business days after we receive and inspect the returned item. Please allow this processing time before inquiring about your refund status.

 

Warranty

Mizumo Auto provides a 90-day Limited Warranty against defects in workmanship and materials under normal service conditions, effective from the original delivery date.

This warranty is non-transferable and applies only to the original purchaser. Coverage is limited to the replacement or refund of defective products.

Exclusions:

The warranty does not cover labor costs, damage resulting from accidents, misuse, alterations, or unauthorized modifications, as well as additional expenses such as towing, fluids, oils, car rentals, and any other parts not included in the original purchase.

Warranty Claims Process:

  • All warranty claims must be pre-authorized and returned prepaid to Mizumo Auto for inspection and approval.
  • No exchanges will be made for products that have been damaged, misused, or improperly installed. We strongly recommend professional installation.
  • The buyer assumes all risk of damage resulting from improper installation.

All disputes related to transactions shall be resolved by a court of competent jurisdiction in Los Angeles County, California.

 

Shipping

We offer Free UPS Ground or USPS Ground Advantage shipping within the continental U.S. (48 states).

Shipping to Other Locations:

A delivery surcharge applies to shipments to: Alaska, Hawaii, Puerto Rico, U.S. territories, APO/FPO addresses, Canada, and international destinations.

Order Processing & Tracking:

  • Orders are shipped Monday through Friday, excluding holidays.
  • Orders placed before 3:00 PM PST will ship the same day, unless unexpected delays occur.
  • A tracking number will be emailed within one business day after shipping.

If you do not receive a tracking number, please:

  • Check your spam/junk folder.
  • If it's not there, contact us via phone or eBay message for assistance.

International Orders:

Import duties, taxes, and brokerage fees are not included in the shipping fee. Please check with your shipping carrier and local customs office regarding any applicable fees before placing your order.

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