Our aftermarket exhaust manifolds are some of the highest quality replacements on the market!

Specifications:

  • Fits the LH (Driver Side) Bank
  • Includes:
    • (1) Exhaust manifold
    • (1) Gasket (manifold to cylinder head)
    • (1) Gasket (manifold to front pipe)
    • (3) Studs
    • (3) Nuts
    • (2) AIR Studs
    • (2) AIR Nuts
  • Replaces dealer part numbers: 12555621
  • Direct replacement
  • Built to strict quality control standards

This exhaust manifold makes a great replacement and has substantial cost savings over a dealer unit!

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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8.1L Drivers Side Exhaust Manifold
Needed help getting the correct manifold as it was for a custom application. The lady I spoke with was VERY knowledgeable and extremely helpful. Made a possibly difficult situation smooth and easy. And you can't beat the prices!
Will DEFINITELY check out 1aauto for my future parts needs.
October 6, 2017
Purchased
11 months ago
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Vehicle Fit

Year Make Model Description
2002-2006Chevy Avalanche 2500 Chevy Avalanche 2500 Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2001-2006Chevy Silverado 2500 HD Chevy Silverado 2500 HD Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2007Chevy Silverado 2500 HD Classic Chevy Silverado 2500 HD Classic Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2001-2006Chevy Silverado 3500 Chevy Silverado 3500 Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2007Chevy Silverado 3500 Classic Chevy Silverado 3500 Classic Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2001-2006Chevy Suburban 2500 Chevy Suburban 2500 Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2001-2006GMC Sierra 2500 HD GMC Sierra 2500 HD Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2007GMC Sierra 2500 HD Classic GMC Sierra 2500 HD Classic Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2001-2006GMC Sierra 3500 GMC Sierra 3500 Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2007GMC Sierra 3500 Classic GMC Sierra 3500 Classic Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side
2001-2006GMC Yukon XL 2500 GMC Yukon XL 2500 Exhaust Manifold & Gasket Kit V8 8.1L with Air Pump Driver Side

This part replaces:

  • OE # 12555621
  • OE # 12557287
  • Hollander 327-02028L
  • Dorman 674-729
Part #: 1AEEM00690

Out of Stock