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USD 63.72
Part #: ME10263

Merchant Automotive 10263 Oil Cooler Installation Kit

2001-2010 GM 6.6L Duramax LB7/LLY/LBZ/LMM
Part #: ME10263
★★★★★ ★★★★★ 4 Reviews
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The Merchant Automotive 10263 Oil Cooler Installation Kit for your 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax includes the needed gaskets and seals to properly install the oil cooler on your Duramax LB7/LLY/LBZ/LMM.

  • For Oil Cooler Installations 
  • Fits 2001-2010 Duramax Engines 
Trucks with newer style oil coolers may require the additional GM 12631281 Oil Cooler To Block Seal that is available through your local GM dealer. 

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
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


  • MFG. Number 10263
  • Manufacturer Name Merchant Automotive
  • Shipping Weight 1.00 lb.
  • Shipping Length 6 in.
  • Shipping Width 6 in.
  • Shipping Height 6 in.
  • Fuel Type Diesel
  • UPC 604947010919
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal L13.00R2.00


★★★★★ ★★★★★
5.0/5 Stars out of 4 Reviews
Oil cooler install kit for 2001-2010 Duramax
This kit was awesome! All the parts were labeled where they went which was great and everything fit great, loved this product and can’t wait to buy more from this company!
Duramax oil cooler reseal kit.
Fast service. Kit had all seals/gaskets for earlier Duramax cooler. After replacing the parts and reinstalling the cooler it leaked....yay! More quality time with my truck. It was leaking at the non-serviceable gasket. Pulled it out .... again....cleaned and resealed the non-resealable area. No leaks. Be aware the only "right" way of fixing the older style, if it is leaking at the non-resealable area, is to replace it with a newer model. XDP has excellent products. Chas
Oil cooler install kit for 01-10 duramax
Everything was great, however if you end up switching from the 01-04 oil cooler which can't be rebuilt the kit is missing the blue o-ring/seal which was luckily already installed on my standard ock9 oil cooler and housing part. It is a very confusing process owning a 2003 lb7 with the earlier style gasket which cannot be replaced and it says that in the description. However it is somewhat of a useless kit if you own a 2001 -2004 lb7 as your only way to fully rebuild is out of the question. I was glad I got the standard part ock9 as it was "Made in the USA", and the new water pump and one removed were AC Delco and were " Made I China". What a disappointment most the parts on these so-called American trucks are. I would suggest to the owners of this site to include a made in USA on any part they offer so at least you have a choice. Thanks for the excellent service, shipping, and experience. Justin
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