Replaces

Exhaust Manifold & Gasket Kit Dorman 674-732 - 1AEEM00657

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

If your vehicle's exhaust is getting loud and the exhaust noise is coming from under the hood or engine then you may need to fix a cracked exhaust manifold. Replacing a broken manifold is easiest with a direct replacement manifold that will fit correctly and bolt up to you original engine and exhaust system. This manifold is a direct fitting replacement.

Specifications:

  • Fits the RH (Passenger Side)
  • Includes:
    • (1) Exhaust manifold
    • (1) Gaskets (manifold to cylinder head)
    • (1) Gasket (manifold to exhaust pipe)
    • (3) Studs (manifold to exhaust pipe flange)
    • (3) Nuts (manifold to exhaust pipe flange)
  • Replaces dealer part numbers: 12616286
  • Direct replacement
  • Replaces original manifolds that are cracked from thermal expansion and contraction
  • Strengthened and redesigned in the vulnerable areas of failure
  • Manifold may look different than original
    • Manifold has hump where the EGR valve tube used to bolt to
    • It is not drilled or tapped for this provision

Now you can buy a high quality exhaust manifold that is built to strict quality control standards for less than the price at the dealer. REPLACE your broken, warped, or cracked exhaust manifold now with this great fitting, alternative. This exhaust manifold is 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.

  1. step : Removing the Air Intake Hose (0:48)
    • Loosen the air intake hose clamps with a flat blade screwdriver
    • Unclip the intake hose from the radiator hose
    • Pull the intake hose up and out
  2. step : Removing the Exhaust Manifold (1:27)
    • Remove the 15mm bolt from the dipstick tube
    • Pull the dipstick tube up and out
    • Pull out on the spark plug wires
    • Remove the 10mm bolts along the exhaust manifold
    • Leave one 10mm bolt on either end, and one in the middle halfway in
    • You may have to use a piece of pipe for extra leverage
    • Spray the three 15mm nuts on the exhaust flange on both sides with penetrating oil
    • Remove the 15mm nuts from the exhaust flange on both sides
    • Remove the 10mm bolts holding the exhaust manifold in place
    • Pull the exhaust manifold up and out
    • Pull off the gasket
  3. step : Preparing the Exhaust Manifold (4:00)
    • Take the ring off the old manifold and place it onto the new one
    • Twist in the studs and tighten them with pliers
    • Use a hammer and vice grip pliers to remove any broken bolts
    • Use a wire brush to clean the head that will mount the exhaust manifold
  4. step : Replacing the Exhaust Manifold (4:55)
    • Slide the manifold down into place
    • Place the gasket between the manifold and the head
    • Place the 10mm bolts in and tighten them preliminarily
    • Put the exhaust flange in place, replace the 15mm nuts, and tighten them preliminarily
    • Tighten the 10mm bolts along the top of the exhaust manifold
    • Torque the 10mm bolts to 40 ft/lbs - Start with the center ones and work your way out
    • Tighten up the exhaust flange nuts the rest of the way for both sides
    • Feed the dipstick tube back into place
    • Replace the 15mm bolt from the dipstick tube
    • Replace the spark plug wires
  5. step : Reinstalling the Air Intake Hose (8:06)
    • Push the intake hose into place
    • Tighten the intake hose clamps with a flat blade screwdriver
    • Double check all the harnesses and hoses

Tools needed for replacement:

    General Tools

  • Jack Stands
  • Wire Brush

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Needle nose pliers
  • Pipe Wrench

  • Ratchets & Related

  • Ratchet
  • Socket Extensions
  • Torque Wrench

  • Sockets - Metric

  • 10mm Socket
  • 15mm Socket

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Vehicle Fit

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  • 2002-2003 Cadillac Escalade Exhaust Manifold & Gasket Kit V8 5.3L without EGR Valve Passenger Side Dorman 674-732
  • 2004-2005 Cadillac Escalade Exhaust Manifold & Gasket Kit V8 5.3L Passenger Side Dorman 674-732
  • 2004-2005 Cadillac Escalade Exhaust Manifold & Gasket Kit V8 6.0L Passenger Side Dorman 674-732
  • 2006-2012 Cadillac Escalade Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2003-2012 Cadillac Escalade ESV Exhaust Manifold & Gasket Kit V8 6.0L without EGR Valve Passenger Side Dorman 674-732
  • 2004-2012 Cadillac Escalade ESV Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2002-2003 Cadillac Escalade EXT Exhaust Manifold & Gasket Kit V8 6.0L without EGR Valve Passenger Side Dorman 674-732
  • 2004-2010 Cadillac Escalade EXT Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2002-2003 Chevy Avalanche 1500 Exhaust Manifold & Gasket Kit V8 5.3L Passenger Side Dorman 674-732
  • 2004-2012 Chevy Avalanche 1500 Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2003 Chevy Express 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2003 Chevy Express 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L without EGR Valve Dorman 674-732
  • 2003 Chevy Express 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L without EGR Valve Dorman 674-732
  • 2004-2013 Chevy Express 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2004-2013 Chevy Express 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2004-2013 Chevy Express 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2003 Chevy Express 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2003 Chevy Express 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L without EGR Valve Dorman 674-732
  • 2003 Chevy Express 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L without EGR Valve Dorman 674-732
  • 2004-2009 Chevy Express 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2004-2013 Chevy Express 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2004-2013 Chevy Express 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2003 Chevy Express 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L without EGR Valve Dorman 674-732
  • 2003 Chevy Express 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2003 Chevy Express 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L without EGR Valve Dorman 674-732
  • 2004-2012 Chevy Express 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2004-2012 Chevy Express 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2004-2012 Chevy Express 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2002-2003 Chevy Silverado 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2002-2003 Chevy Silverado 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L without EGR Valve Dorman 674-732
  • 2002-2003 Chevy Silverado 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L without EGR Valve Dorman 674-732
  • 2004-2010 Chevy Silverado 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2004-2013 Chevy Silverado 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2004-2013 Chevy Silverado 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2009-2013 Chevy Silverado 1500 Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2009-2013 Chevy Silverado 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.2L Dorman 674-732
  • 2007 Chevy Silverado 1500 Classic Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2007 Chevy Silverado 1500 Classic Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2007 Chevy Silverado 1500 Classic Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2002-2003 Chevy Silverado 1500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2005-2006 Chevy Silverado 1500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2007 Chevy Silverado 1500 HD Classic Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2002-2003 Chevy Silverado 2500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2004 Chevy Silverado 2500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2002-2003 Chevy Silverado 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2004-2006 Chevy Silverado 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2007 Chevy Silverado 2500 HD New Body Style Exhaust Manifold & Gasket Kit with V8 6.0L (excluding Cab & Chassis) Passenger Side Dorman 674-732
  • 2008-2017 Chevy Silverado 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L (excluding Cab & Chassis) Dorman 674-732
  • 2007 Chevy Silverado 2500 HD Classic Exhaust Manifold & Gasket Kit with V8 6.0L Passenger Side Dorman 674-732
  • 2002-2003 Chevy Silverado 3500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2004-2006 Chevy Silverado 3500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2007 Chevy Silverado 3500 New Body Style Exhaust Manifold & Gasket Kit with V8 6.0L (excluding Cab & Chassis) Passenger Side Dorman 674-732
  • 2008-2017 Chevy Silverado 3500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L (excluding Cab & Chassis) Dorman 674-732
  • 2008-2017 Chevy Silverado 3500 Exhaust Manifold & Gasket Kit V8 6.0L Passenger Side (excluding Cab & Chassis) Dorman 674-732
  • 2007 Chevy Silverado 3500 Classic Exhaust Manifold & Gasket Kit with V8 6.0L Passenger Side Dorman 674-732
  • 2002-2003 Chevy Suburban 1500 Exhaust Manifold & Gasket Kit without EGR Valve Passenger Side Dorman 674-732
  • 2004-2006 Chevy Suburban 1500 Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
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  • 2004-2006 Chevy Suburban 2500 Exhaust Manifold & Gasket Kit V8 6.0L Passenger Side Dorman 674-732
  • 2007-2009 Chevy Suburban 2500 Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2002-2003 Chevy Tahoe Exhaust Manifold & Gasket Kit without EGR Valve Passenger Side Dorman 674-732
  • 2004-2012 Chevy Tahoe Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2003 GMC Savana 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L without EGR Valve Dorman 674-732
  • 2003 GMC Savana 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L without EGR Valve Dorman 674-732
  • 2003 GMC Savana 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2003-2013 GMC Savana 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2004-2013 GMC Savana 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2004-2013 GMC Savana 1500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2003 GMC Savana 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2003 GMC Savana 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L without EGR Valve Dorman 674-732
  • 2003 GMC Savana 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L without EGR Valve Dorman 674-732
  • 2003-2017 GMC Savana 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2004-2013 GMC Savana 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2004-2013 GMC Savana 2500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2003 GMC Savana 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2003 GMC Savana 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L without EGR Valve Dorman 674-732
  • 2003 GMC Savana 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L without EGR Valve Dorman 674-732
  • 2004-2009 GMC Savana 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2004-2009 GMC Savana 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2004-2009 GMC Savana 3500 Van Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2002-2003 GMC Sierra 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2002-2003 GMC Sierra 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L without EGR Valve Dorman 674-732
  • 2002-2003 GMC Sierra 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L without EGR Valve Dorman 674-732
  • 2004-2009 GMC Sierra 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2004-2009 GMC Sierra 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2004-2009 GMC Sierra 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2009-2013 GMC Sierra 1500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.2L Dorman 674-732
  • 2007 GMC Sierra 1500 Classic Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2007 GMC Sierra 1500 Classic Exhaust Manifold & Gasket Kit Passenger Side V8 5.3L Dorman 674-732
  • 2007 GMC Sierra 1500 Classic Exhaust Manifold & Gasket Kit Passenger Side V8 4.8L Dorman 674-732
  • 2002-2003 GMC Sierra 1500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2005-2006 GMC Sierra 1500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2007 GMC Sierra 1500 HD Classic Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2002-2003 GMC Sierra 2500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2004 GMC Sierra 2500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2002-2003 GMC Sierra 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2004-2006 GMC Sierra 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2007 GMC Sierra 2500 HD New Body Style Exhaust Manifold & Gasket Kit with V8 6.0L (excluding Cab & Chassis) Passenger Side Dorman 674-732
  • 2008-2017 GMC Sierra 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L (excluding Cab & Chassis) Dorman 674-732
  • 2007 GMC Sierra 2500 HD Classic Exhaust Manifold & Gasket Kit with V8 6.0L Passenger Side Dorman 674-732
  • 2002-2003 GMC Sierra 3500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L without EGR Valve Dorman 674-732
  • 2004-2006 GMC Sierra 3500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L Dorman 674-732
  • 2007 GMC Sierra 3500 New Body Style Exhaust Manifold & Gasket Kit with V8 6.0L (excluding Cab & Chassis) Passenger Side Dorman 674-732
  • 2008-2013 GMC Sierra 3500 Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L (excluding Cab & Chassis) Dorman 674-732
  • 2007 GMC Sierra 3500 Classic Exhaust Manifold & Gasket Kit with V8 6.0L Passenger Side Dorman 674-732
  • 2011-2013 GMC Sierra Denali 2500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L (excluding Cab & Chassis) Dorman 674-732
  • 2011-2013 GMC Sierra Denali 3500 HD Exhaust Manifold & Gasket Kit Passenger Side V8 6.0L (excluding Cab & Chassis) Dorman 674-732
  • 2002-2003 GMC Yukon Exhaust Manifold & Gasket Kit without EGR Valve Passenger Side Dorman 674-732
  • 2004-2014 GMC Yukon Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2002-2003 GMC Yukon XL 1500 Exhaust Manifold & Gasket Kit without EGR Valve Passenger Side Dorman 674-732
  • 2004-2013 GMC Yukon XL 1500 Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2002-2003 GMC Yukon XL 2500 Exhaust Manifold & Gasket Kit V8 6.0L without EGR Valve Passenger Side Dorman 674-732
  • 2002-2013 GMC Yukon XL 2500 Exhaust Manifold & Gasket Kit V8 6.0L Passenger Side Dorman 674-732
  • 2007-2013 GMC Yukon XL 2500 Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732
  • 2003 Hummer H2 Exhaust Manifold & Gasket Kit without EGR Valve Passenger Side Dorman 674-732
  • 2004-2009 Hummer H2 Exhaust Manifold & Gasket Kit Passenger Side Dorman 674-732

This part replaces:

  • Hollander 327-00167
  • OE # 12616286
  • Dorman 674-732
Part #: 1AEEM00657


Dorman
Brand #: 674-732

How-to Video:

(08:45 min)