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GM 6.6L Duramax EGR Coolant Hose 2004-2007 | Bostech BD2401085


Bostech Heavy-Duty EGR Coolant Hose for General Motors 6.6L Duramax is molded to the OEM specifications for both function and fit. Manufactured in a quality controlled facility with multi-point testing our coolant hoses are made for durability and longevity. Backed by our 24-month unlimited mileage / hour warranty

Engine Fitment:

  • GM Duramax 6.6L LLY


  • Gaskets, Seals, and O-Rings may vary in color.
  • Application Data for reference only, not all make, model, or years may be listed.
  • Bostech / BT-Power is not associated with any OEM manufacturer. Any and all use of the OEM name is for product description purposes only.
Prop65 Warning:
WARNING: Cancer and Reproductive Harm -


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, see our Warranty Policy under the Help Center link at the top of the page for full warranty details.

If you are experiencing issues with our products please contact our Customer Service Team.

Technical Support is available by contacting Bostech's Customer Service at 1-800-868-0057 or by emailing