Buy 2019 Chevrolet Silverado 3500 HD LT Crew Cab Pickup Gasket. Pipe. Coolant. Engine. Seal. (Lower). 6 Bypass, Cooling, System - OEM Chevrolet Part # 12643771 (12737097)

A component which prevents a leak at the Cooling System Bypass Line. A component which provides a Sealing surface at the Cooling System Bypass Line. Bypass Pipe to Water Pump. Gasket for Coolant System. By - Passenger. Bypass Hose.

Engine Coolant Pipe GasketEngine Coolant Bypass Hose GasketEngine Coolant Bypass Hose Seal

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL.
Cooling System Bypass Line - Repair or Replace
If your 2019 Chevrolet Silverado has been either leaking coolant or overheating, you could have a faulty cooling system bypass line. Let our technicians help trace the problem and replace the faulty coolant hose with a genuine Chevrolet part.