ACDelco 21698 - Radiator

GM Original Equipment


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.

Availability: Call to check stock.
Pricing: $1,142.18




Warranty: Limited Lifetime (Parts Only). Please see for more details.

Features & Benefits:

  • 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


Q: My engine is overheating does this mean I need to replace my radiator?
A: 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.

Maintenance & Troubleshooting

Signs of Wear & Troubleshooting

  • Signs of wear for a radiator include but are not limited to:
    • Vehicle overheating: This is often a sign of a problem with your cooling system, but could be caused by various parts of your vehicles cooling system. It may be because of low or empty coolant level, broken/malfunctioning cooling fans, leaks from broken hoses, or a broken/damaged radiator.
    • Rust Accumulation: Radiators are constantly exposed to moisture, meaning they can be prone to corrosion. If you check your coolant and it has a brownish tint then you may have excessive corrosion. It is best to have you radiator inspected and flushed to clean out the rust. Using high quality coolant helps prevent corrosion, refer to your owner's manual for proper coolant type.
    • Radiator Leaks: For various reasons, radiators can develop leaks. Radiators can become damaged in an accident. The end tanks can crack or split and it is important to inspect your radiator for damage often. Damaged radiators should be replaced to help ensure that your vehicle doesn't leak coolant and cause overheat or performance issue.

Good Maintenance Practices

  • 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.

California Proposition 65

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  • 21698
  • 21698
  • ACDelco
  • Call to check stock.
  • New


Shipping Information

  • Item Requires Shipping
  • 24.7 lbs.
  • W30.1200” x H8.6200” x L51.8800”

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California Residents: Prop 65

WARNING: Cancer and Reproductive Harm -