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This Sinister Diesel upper radiator pipe kit is specified for 2011–2016 GM Duramax 6.6L LML engines and replaces fragile factory coolant hoses. Built from abrasion- and crack-resistant 6061 aluminum with precision mandrel bends, the kit includes extra-thick four-ply silicone boots rated to 400 psi, stainless clamps and a Sinister Blue powder-coated finish to improve longevity and underhood appearance.
Sinister Diesel 11-16 GM Duramax 6.6L LML Radiator Pipe
