Pipe is checked for factory flow.
Cadillac Northstar Deville Tank Low Coolant Level Sensor 2000-2005
CADILLAC NORTHSTAR DEVILLE ASSEMBLY HEATER CORE INLET & OUTLET PIPES 2000-2005
Cadillac Northstar Water Pump Housing Coolant Crossover 12553133 95-99
Cadillac NorthStar Complete Head Gasket Repair System. Save $20.00 Limited Time
vacuum port manifold for Cadillac Northstar V8 & Oldsmobile Aurora USA & Canada
2006-2011 CADILLAC NORTHSTAR WATER PUMP COOLANT CROSS OVER 12600024