Buy OEM 1991 Buick Part # 55506796 (55511710). Engine Coolant Bypass Pipe. 3.0 LITER DIESEL. Silverado, Sierra; Valve To EGR Cooler. Cooling System Bypass Line - Repair or Replace If

Pipe. By - Passenger. Engine Coolant Bypass. Hose - Thermostat Bypass. Hoses.
Engine Coolant Bypass Pipe.

Engine Coolant Bypass Pipe

Fits Escalade , Escalade ESV, Sierra 1500, Silverado, Suburban , Tahoe , Yukon, Yukon XL

3.0 LITER DIESEL. Silverado, Sierra; Valve To EGR Cooler.
Cooling System Bypass Line - Repair or Replace
If your 1991 Buick 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 Buick part.