Shop 2000 Buick Century Engine Coolant Bypass Pipe. 6.6 LITER DIESEL. Cooling System Bypass Line - Cooling, DIESEL, Faulty - OEM Buick Part # 12633704

By - Passenger Pipe. Engine Coolant Bypass Pipe.
Engine Coolant Bypass Pipe.

Engine Coolant Bypass Pipe

Fits Express 2500, Express 3500, Express 4500, Savana 2500, Savana 3500, Savana 4500, Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL.
Cooling System Bypass Line - Repair or Replace
If your 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 part.