Sinister Diesel 2008-2010 Duramax (Cab/Chassis), EGR Cooler – SD-EGRC-LMM-CC


Product Highlights:

Sinister Diesel has reinvented the Exhaust Gas Recirculation (EGR) cooler with this great new model with the same fit as your factory EGR cooler. If you’re tired of clogging in your diesel engine’s EGR cooler, or if you just want to prevent future headaches, Sinister Diesel’s parent company, Sinister Manufacturing, has created an EGR cooler that looks and fits like your factory model, but works way better than your stock cooler ever did!

Our less-restrictive design reduces clogging by replacing the narrow thin walled inner tubes with high-flow stainless steel tubing for improved reliability and durability. Manufactured with high-quality TIG welds, each EGR cooler is pressure tested and is guaranteed to protect against leakage.

There’s no need to do any sort of modification, as our EGR coolers are direct drop in replacements. Another major concern with the factory EGR Cooler is that when it cracks, it will start forcing coolant into the intake manifold. Once you get coolant in the intake system, it will get fed into the combustion chamber, which usually results in a blown head gasket, or hydro-locked motor. When you purchase one of our upgraded EGR coolers, you’re being proactive and taking the necessary steps to protect your truck. Don’t break the bank, protect your investment and don’t waste anymore time or money on factory EGR coolers

Vehicle Fitment

2008-2010 GM Duramax 6.6L LMM Cab/Chassis

  • Special Note – Does not require removal of intake manifold

Key Features

  • Construction – Stainless Steel
  • Product Design – Full TIG welds and pressure tested
  • Performance Notes – Improved exhaust gas flow


  • Kit Includes – (1) Sinister Diesel EGR Cooler


*Special Order. Please allow for additional shipping time.

This will also add the following products to your cart:

  • Core Charge 200.00