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Wehrli 06-10 Chevrolet 6.6L LBZ/LMM Duramax Upper Coolant Pipe - Gloss Black
Upgrade the coolant system on your 2006–2010 Chevrolet Silverado HD or GMC Sierra HD with the Wehrli Custom Fabrication Upper Coolant Pipe in Gloss Black for the 6.6L LBZ or LMM Duramax diesel. This precision-fabricated aluminum coolant pipe replaces the factory upper coolant tube with a stronger, more heat-resistant alternative that eliminates the risk of leaks or failures common with aging OEM components.
Wehrli fabricates this coolant pipe from welded aluminum with machined fittings sized for direct use with the factory coolant hoses. The Gloss Black powder coat gives the engine bay a clean, finished appearance while providing excellent resistance to coolant, heat, and corrosion. A simple bolt-on upgrade that protects your LBZ or LMM Duramax for years to come.
Key Features
- Fits: 2006–2010 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with 6.6L LBZ or LMM Duramax diesel
- Upper coolant pipe — aluminum replacement for the factory tube
- Welded aluminum construction with machined fittings — superior durability over OEM
- Gloss Black powder coat — clean, heat-resistant, corrosion-proof finish
- Direct bolt-on fit using factory coolant hoses — no modifications required
- Made in the USA by Wehrli Custom Fabrication (WCFab)
- MPN: WCF100622-GB
A smart upgrade for any 2006–2010 LBZ or LMM Duramax owner looking to maintain or improve cooling system reliability. Pair with the Wehrli coolant tank and other cooling upgrades for a fully refreshed cooling system on your GM HD diesel.