GM Genuine Parts Radiator
OE
Pack of 1

GM Genuine Parts Radiator

GM Part #25887194

ACDelco Part #21736

MSRP$800.81*

ACDelco GM Original Equipment Radiators are GM-recommended replacements for your vehicles original components.

  • Lightweight; the radiators have a positive heat transfer to weight ratio
  • Corrosion-resistant aluminum designed core helps optimize the radiators long lasting
  • GM-recommended replacement part for your GM vehicle's original factory component

Pack of 1

About this product

ACDelco GM Original Equipment Radiators are GM-recommended replacements for your vehicles original components. Radiators are heat exchangers, typically located in the front of the vehicle where air can flow through the fins and dissipate heat. Modern radiators are made from aluminum and plastic, while older vehicles used copper and brass. These radiators are designed to be corrosion resistant with optimal heat transfer characteristics. These original equipment radiators have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

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  • Lightweight; the radiators have a positive heat transfer to weight ratio
  • Corrosion-resistant aluminum designed core helps optimize the radiators long lasting
  • 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

Mounting Hardware IncludedNo
Core MaterialAluminum
Core Row Quantity1
Mounting TypePin
Outlet Header Width2.36 in / 60 mm
Core Height20.35 in / 517 mm
ClassificationOE
Core Thickness1.06 in / 27 mm
Inlet Diameter1.34 in / 34 mm
Outlet Diameter1.14 in / 34 mm
Transmission Oil Cooler Distance between Fittings14.76 in / 375 mm
Inlet Header Width2.6 in / 66 mm
Down Flow Or Cross Flow TypeCross Flow
Transmission Oil Cooler Plate Quantity7
Engine Oil Cooler IncludedNo
Transmission Oil Cooler IncludedYes
Transmission Oil Cooler Fitting TypeQuick Connect
Transmission Oil Cooler TypePlate
Transmission Oil Cooler Fitting GenderFemale
Outlet LocationBottom Left
Internal Engine Oil CoolerNo
Internal Transmission Oil CoolerYes
Frame IncludedYes
Radiator Cap IncludedNo
Core Width24.17 in / 613.8 mm
Inlet Header Length22.83 in / 580 mm
Outlet Header Length22.83 in / 580 mm
Transmission Oil Cooler Length15.79 in / 401 mm
Transmission Oil Cooler Fitting Diameter0.47 in / 12 mm
Tank MaterialPlastic

Limited Lifetime Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Maintain proper coolant levels and check levels regularly. Also make sure to check coolants concentration because the water ratio can affect the freezing or boiling point. (Note: Never attempt to remove a surge or radiator cap while the engine is hot. Serious injury could result.)

  • Replace coolant with a mixture of antifreeze and water according to the owner's manual recommendations.
  • Evaluate radiator and radiator cap for leaks, corrosion, or worn cap gasket. Make sure to pressure test the cap.
  • Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating.
  • Periodically, remove bugs, leaves, and other debris from the front of the radiator. They can block airflow and substantially reduce cooling efficiency.

ModelBody StyleTrimYear(s)
CTSV2009, 2010, 2011, 2012, 2013, 2014, 2015

Frequently Asked Questions

No, an overheating engine could mean an issue with your radiator, but there are other pieces of the cooling system that could cause the engine to overheat. It is important to check for coolant leaks or a malfunctioning fan. If you look at the radiator and there is a lot of corrosion or holes there may be a problem with the radiator. Either way it is important to get the whole cooling system checked when your engine overheats.