GM Genuine Parts Engine Auxiliary Radiator
OE
Pack of 1

GM Genuine Parts Engine Auxiliary Radiator

GM Part #84693040

ACDelco Part #84693040

MSRP$515.86*

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

Product Specifications

Mounting Hardware IncludedYes
Core MaterialAluminum
Mounting TypeBolt In
Core Width21.69 in / 551 mm
Core Thickness1.89 in / 48 mm
ClassificationOE
Inlet Diameter0.79 in / 20 mm
Core Height16.12 in / 409.45 mm
Outlet Diameter0.87 in / 20 mm
Transmission Oil Cooler IncludedNo
Down Flow Or Cross Flow TypeCross Flow
Engine Oil Cooler IncludedNo
Core Row Quantity2
Tank MaterialPlastic
Internal Transmission Oil CoolerNo
Internal Engine Oil CoolerNo
Frame IncludedYes
Inlet Header Length17.99 in / 457 mm
Outlet Header Length18.03 in / 458 mm
Radiator Cap IncludedNo
Inlet Header Width3.5 in / 89 mm
Outlet Header Width3.5 in / 89 mm

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)
Silverado 1500Crew Cab Pickup2020, 2021, 2022, 2023, 2024, 2025, 2026
Silverado 1500Extended Cab Pickup2020, 2021, 2022, 2023, 2024, 2025, 2026
Silverado 1500 LTDCrew Cab Pickup2022
Silverado 1500 LTDExtended Cab Pickup2022
Suburban2021, 2022, 2023, 2024, 2025, 2026

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.