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

Specifications:

  • Fits the RH (Passenger 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: 12557286
  • 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. Please keep your invoice for proof of this warranty.

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Vehicle Fit

  • 2002 Chevy Avalanche 2500 Exhaust Manifold & Gasket Kit V8 8.1L without Air Pump Passenger Side
  • 2003 Chevy Avalanche 2500 Exhaust Manifold & Gasket Kit Passenger Side V8 8.1L
  • 2001-2002 Chevy Silverado 2500 HD Exhaust Manifold & Gasket Kit V8 8.1L without Air Pump Passenger Side
  • 2003 Chevy Silverado 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 8.1L
  • 2001-2002 Chevy Silverado 3500 Exhaust Manifold & Gasket Kit V8 8.1L without Air Pump Passenger Side
  • 2003 Chevy Silverado 3500 Exhaust Manifold & Gasket Kit V8 8.1L Passenger Side
  • 2001-2002 Chevy Suburban 2500 Exhaust Manifold & Gasket Kit V8 8.1L without Air Pump Passenger Side
  • 2003 Chevy Suburban 2500 Exhaust Manifold & Gasket Kit Passenger Side V8 8.1L
  • 2001-2002 GMC Sierra 2500 HD Exhaust Manifold & Gasket Kit V8 8.1L without Air Pump Passenger Side
  • 2003 GMC Sierra 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 8.1L
  • 2001-2002 GMC Sierra 3500 Exhaust Manifold & Gasket Kit V8 8.1L without Air Pump Passenger Side
  • 2003 GMC Sierra 3500 Exhaust Manifold & Gasket Kit V8 8.1L Passenger Side
  • 2001-2002 GMC Yukon XL 2500 Exhaust Manifold & Gasket Kit V8 8.1L without Air Pump Passenger Side
  • 2003 GMC Yukon XL 2500 Exhaust Manifold & Gasket Kit Passenger Side V8 8.1L

This part replaces:

  • Hollander 327-02027R, 02029R
  • OE # 12557286
  • Dorman 674-728
Part #: 1AEEM00691