2006 - 2007 LBZ 6.6L Duramax Return Line Kit
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2006 - 2007 LBZ 6.6L Duramax Return Line Kit

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PRODUCT DETAILS

Keep the fuel system sealed and maintain consistent return-fuel flow with this 2006-2007 LBZ 6.6L Duramax Return Line Kit. Designed for Chevrolet applications equipped with the LBZ 6.6L Duramax, this replacement kit suits servicing the injector return-line system when existing components are worn, damaged, or leaking.

SKU MDPCRLK
Make Chevrolet
Categories Return Line Kit
Year Range 2006 - 2007
Model 6.6L Duramax
OEM Part Numbers

No OEM part number is listed on the current product page.

Verify the existing return-line information and vehicle application before purchase.
Warranty

Covered by the Mississippi Diesel Products warranty against applicable manufacturing defects. See the Warranty Policy for complete terms and conditions.
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  • Replacement return line kit for LBZ 6.6L Duramax
  • Designed for 2006-2007 Chevrolet applications
  • Helps maintain proper fuel return flow
  • Helps provide a secure fuel-system connection
  • Suitable for servicing worn or damaged return-line components
  • Application-specific replacement
  • Useful during injector and fuel-system repairs

Fits:

  • 2006-2007 Chevrolet vehicles equipped with the LBZ 6.6L Duramax

Engine: 6.6L Duramax
Engine Code: LBZ

Verify your vehicle, engine, and existing return-line setup before ordering.

Specification Details
Product Type Return Line Kit
Condition Replacement
Make Chevrolet
Engine 6.6L Duramax
Engine Code LBZ
Model Years 2006-2007

FREQUENTLY ASKED QUESTIONS

This kit is listed for 2006-2007 Chevrolet vehicles equipped with the LBZ 6.6L Duramax engine.

The return-line system routes excess fuel through the fuel system. Properly functioning return components help maintain the intended fuel flow and system operation.

Replacement may be needed when the existing return-line components become worn, damaged, or begin leaking during fuel-system operation or injector service.

Yes. A damaged or deteriorated return-line component can allow fuel to escape and should be addressed promptly.

No. This product is specifically listed for 2006-2007 LBZ 6.6L Duramax applications. Verify your engine code and model year before ordering.

Yes, professional installation is recommended to ensure the return-line components are fitted correctly, and the fuel system remains properly sealed.