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(888) 312-8812 Login SignupSeal off coolant loss with the PACCAR Engine Coolant Pipe. Bolting up the PACCAR 1973433 restores a sound pipe in the factory routing on applicable PACCAR engines, where an old pipe has corroded. Coolant pipes carry flow between components under pressure and constant heat cycles, so corrosion or a damaged seal surface eventually causes leaks. Engines hold coolant and temperature steady, and drivers stop adding coolant between scheduled services at the shop.
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