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GMC Sierra 2500 Transmission Gaskets and Seals

This page brings together transmission gaskets and seals for the GMC Sierra 2500, covering model years 1999–2013. The range spans both manual and automatic transmission applications, including oil pan gaskets, input shaft seals, and pump seals available as OE replacement parts and kits. Choose your model year above and this page keeps only the transmission gaskets and seals that fit your GMC Sierra 2500. Each listing is matched to our vehicle fitment data before it appears here.

1 - 4 of 4 results

Best Seller Free Shipping
Picture of Mr. Gasket Automatic Transmission Oil Pan Gasket Set

Mr. Gasket Automatic Transmission Oil Pan Gasket Set

30 reviews
Vehicle Specific
from $28
In Stock (10+)
Picture for manufacturer Mr. Gasket
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Best Seller Free Shipping
Picture of MAHLE Automatic Transmission Oil Pan Gasket

MAHLE Automatic Transmission Oil Pan Gasket

24 reviews
Vehicle Specific
from $8
In Stock (10+)
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Best Seller Free Shipping
Picture of MAHLE Victor Reinz Transmission Oil Pan Gasket

MAHLE Victor Reinz Transmission Oil Pan Gasket

63 reviews
Vehicle Specific
from $13
In Stock (10)
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Picture of Cometic C15250 GM Transmission Oil Pan Gasket - 4L80E

Cometic C15250 GM Transmission Oil Pan Gasket - 4L80E

66 reviews
Part: C15250
Vehicle Specific
$17.27
Ships from manufacturer
Picture for manufacturer Cometic

What's here for your GMC Sierra 2500

  • Manual Transmission Shift Shaft Seals
  • Automatic Transmission Seals
  • Automatic Transmission Oil Pan Gaskets
  • Automatic Transmission Oil Pump Seals
  • Automatic Transmission Input Shaft Seals

The widest selection here comes from ACDelco, ATP, SKF, and National Oil Seal, covering a broad range of positions and fitment styles including OE replacement pieces and multi-piece gasket kits. Other categories GMC Sierra 2500 owners shop for: GMC Sierra 2500 Exterior Lights, GMC Sierra 2500 Doors and Door Parts and GMC Sierra 2500 Body and Paint Equipment, or browse all GMC Sierra 2500 parts and accessories.