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GM Original Equipment

An ACDelco GM Original Equipment Radiator Surge Tank helps regulate coolant system fluid level and provide a place for coolant expansions or contractions. This original equipment radiator surge tank is engineered to fit your specific GM vehicle and will provide the same performance, durability, and service life of your factory original equipment.


  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
Capacity5.28 LB
Capacity2.5 LT
Length18.3 IN
Length467 MM
Mounting Hardware IncludedNo
Height8.6 IN
Height218 mm
ShapeOval Bubble Shape with two hose ports
Mount Hole Quantity1
Cap IncludedNo
Alternate/OEM Part Number(s): 15103147, 15848518, 20969765

Warranty Information:
Limited Lifetime as long as original purchaser owns vehicle.
Warranty Details