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Cummins 6.7L QSB, QSL / Komatsu EGR Cooler 2009-2019 | Bostech EGR04045


Bostech's heavy-duty EGR Coolers are a direct fitment of the OEM. Constructed with quality stainless steel material to ensure long lasting durability. Heat transfer and burst tested for optimal performance and backed by Bostech's 24-Month Unlimited Mileage warranty! Superior quality at an affordable price - Bostech's EGR Coolers.

  • Stainless Steel Construction: All Stainless Steel construction for greater heat transfer
  • Bostech Remanufactured: EGR Cooler housing is remanufactured from OE units. Internal OEM heat exchange is upgraded to Bostech's tube design using all new stainless steel material.
  • Upgraded Heat Exchange: Bostech's stainless steel tube design for optimal heat transfer and cooling
  • Gasket Included: Original OE gaskets included
  • Warranty: 24-Month Unlimited Mileage Warranty!!


  • Cummins 6.7L QSB
  • Cummins QSL
  • Komatsu

Have Extra cores?

We will buy your cores - click here for details

Prop65 Warning:
WARNING: Cancer and Reproductive Harm -
Product Type:
Stainless Steel
Heat Exchange:
Stainless Steel Tubing
Gaskets Included:
CARB Certified:
24-Month Unlimited Mileage - see warranty section for details
Bostech / BT-Power's 24-Month Unlimited Mileage Warranty. Our warranty covers product replacement for material and/or workmanship defects up to 24-months from the product purchase date. Technical Support is available by contacting Bostech's Customer Service at 1-800-868-0057 or by emailing An RMA (Return Material Authorization) number given by Customer Service is required for all returns. You can view our Warranty Policy by clicking the "Help Center" at the bottom of the page and going to Policies & Procedures.