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This Sinister Diesel Coolant Reservoir Cap is specified for Chevy Duramax L5P applications and serves as a direct replacement for the reservoir’s degas cap. It provides the sealing and pressure-control function required by the coolant reservoir while offering a finished appearance tailored to L5P Duramax trucks that use that specific cap style.
Sinister Diesel Chevy Duramax L5P Coolant Reservoir Cap
