Shop 2009 Cadillac Escalade EXT Engine Coolant Reservoir. 6.6 LITER DIESEL. 6.6 LITER DIESEL, 2015-16 DIESEL, Tank, COOLING - OEM Cadillac Part # 23106015 (22820166, 22957038)

Reservoir. Tank. Assembly - Radiator Surge. Engine Coolant. Recovery.
A container that holds Engine Coolant.

Engine Coolant Reservoir

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL. 6.6 LITER DIESEL, 2015-16. Silverado, Sierra; w/Diesel.
Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.