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USD 88.95
Part #: XD342

XDP Driver Side Exhaust Manifold XD342

2001-2016 GM 6.6L Duramax
Part #: XD342
★★★★★ ★★★★★ 7 Reviews

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The XDP Driver Side Exhaust Manifold XD342 is a direct-fit replacement for the "dented" or "kinked" exhaust manifold in your 2001-2010 GM 6.6L Duramax. On the 2011-2016 LML models, this manifold is a direct-replacement for the LML trucks as they already come with this style of exhaust manifold. This manifold features a durable cast construction and includes the gaskets needed for installation.

  • Quality Tested
  • Durable Construction
  • Direct-Fit Replacement
  • Replaces Dented Factory Manifold (2001-2010)
Application Notes:
Some factory hardware and fasteners will be re-used during installation. 
This is a factory-style replacement on the 2011-2016 GM 6.6L Duramax LML.

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit. Click Here for full warranty policy.

Vehicle Applications

2001 Chevy 6.6L LB7 Duramax
2002 Chevy 6.6L LB7 Duramax
2003 Chevy 6.6L LB7 Duramax
2004 Chevy 6.6L LB7 Duramax
2004.5 Chevy 6.6L LLY Duramax
2005 Chevy 6.6L LLY Duramax
2006 Chevy 6.6L LLY/LBZ Duramax
2007 Chevy 6.6L LLY/LBZ Duramax
2007.5 Chevy 6.6L LMM Duramax
2008 Chevy 6.6L LMM Duramax
2009 Chevy 6.6L LMM Duramax
2010 Chevy 6.6L LMM Duramax
2011 Chevy 6.6L LML Duramax
2012 Chevy 6.6L LML Duramax
2013 Chevy 6.6L LML Duramax
2014 Chevy 6.6L LML Duramax
2015 Chevy 6.6L LML Duramax
2016 Chevy 6.6L LML Duramax
2001 GMC 6.6L LB7 Duramax
2002 GMC 6.6L LB7 Duramax
2003 GMC 6.6L LB7 Duramax
2004 GMC 6.6L LB7 Duramax
2004.5 GMC 6.6L LLY Duramax
2005 GMC 6.6L LLY Duramax
2006 GMC 6.6L LLY/LBZ Duramax
2007 GMC 6.6L LLY/LBZ Duramax
2007.5 GMC 6.6L LMM Duramax
2008 GMC 6.6L LMM Duramax
2009 GMC 6.6L LMM Duramax
2010 GMC 6.6L LMM Duramax
2011 GMC 6.6L LML Duramax
2012 GMC 6.6L LML Duramax
2013 GMC 6.6L LML Duramax
2014 GMC 6.6L LML Duramax
2015 GMC 6.6L LML Duramax
2016 GMC 6.6L LML Duramax


  • MFG. Number XD342
  • Manufacturer Name XDP
  • Shipping Weight 12.00 lb.
  • Shipping Length 20 in.
  • Shipping Width 9 in.
  • Shipping Height 6 in.
  • Fuel Type Diesel
  • UPC 856217008816
  • Warranty Yes
  • Warranty Info 1 Year / Unlimited Mileage
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Cross Reference # 12624684, 12637647, 97224587
  • Internal L0.00R200.00


★★★★★ ★★★★★
4.0/5 Stars out of 7 Reviews
Poor casting
The stock manifold will flow more than this one. The casting is very sloppy. Like the 3 star review stated, plan to spend a couple hours porting, or buy a better quality manifold.
Driver side exhaust manifold
Good looking cast, but plan on spending an hour or so cleaning it up with a grinder. Mine had a large webs of casting flash that would have really reduced the flow. I wish I'd taken before and after pictures, several seams near the up pipe flange really had a lot. Really looks nice now!!
Great manifold
Excellent quality, great fit, and comes with everything needed. I highly recommend it.
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Questions and Answers

Is this pre-tapped for an EGT probe?
View Staff Answer 
Our XDP Driver Side High-Flow Exhaust Manifold XD342 is not pre-tapped for an aftermarket EGT probe.

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