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This Sinister Diesel upper radiator pipe kit is made for 2001–2005 GM Duramax 6.6L (LB7/LLY) engines and replaces vulnerable factory coolant lines. Constructed from abrasion- and crack-resistant 6061 aluminum with precision mandrel bends, the kit comes with four-ply 400 psi-rated silicone boots, stainless steel clamps and a Sinister Blue powder-coated finish for improved durability and a cleaner engine bay.
Sinister Diesel 01-05 GM Duramax 6.6L (LB7/LLY) Radiator Pipe
