Filter Head Spacer & Bolts
- Must be used on 2011+ with the CAT Adapter or if the 1R-0749 CAT filter is used.
- Spaces the fuel filter housing away from the engine
- Makes filter removal & installation much easier
Fits: 2001-2016 Chevy/GMC 6.6l Duramax LB7/LLY/LBZ/LMM/LML
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