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ACDelco 15803358 - C6 Corvette Auxiliary Engine Oil Cooler

GM Original Equipment


Originally used in the 2006-08 Z06 427 7.0L LS7 engines, this heat exchanger was also used in the 2010 and later Dry Sump Grand Sport LS3 applications. Later GM would switch to a different type cooler for LS7 that used the engine coolant from the radiator. For performance track applications this was not a desirable solution and many Corvette owners would convert back to this type of oil cooler to reduce radiator coolant temps. The 2008 and 2009 Grand Sports have a much smaller cooler and this can be used as a direct replacement upgrade.

This heat exchanger transfers heat to and from your vehicle’s engine oil to the ambient air. This helps keep the engine oil temperature within the designed operating range, which helps optimize engine efficiency and longevity. These original equipment engine oil coolers have been manufactured to fit your GM vehicle, providing proven performance, durability, and the service life you expect from General Motors. Easily adaptable to all 2006-13 LS3 and LS7 applications for improved cooling.

Availability: Call to check stock.
Shipping: 1 to 3 Day Delivery to Most Locations Within The Continental United States!
Pricing: $602.34



Auxiliary Engine Oil Cooler

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

Features & Benefits:

  • Helps maintain proper engine oil operating temperatures
  • 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: Is overheated oil a problem?
A: Yes. Overheated oil loses its viscosity and may cause failure in internal engine components.

Q: Are there any recommended items to use to clean the oil cooler exterior?
A: Yes. Make sure to use a soft brush, or low pressure water, to help prevent damage to the cooler core fins.

Maintenance & Troubleshooting

Signs of Wear & Troubleshooting

  • Signs of wear for an engine oil cooler include but are not limited to:
    • Oil leaks
    • Excessive corrosion
    • Low oil level

Good Maintenance Practices

  • Keep oil and filter changed at required intervals
  • Keep cooler line clamps tight to prevent leaks
  • Keep cooler secure to prevent contact wear damage

California Proposition 65

California Prop 65WARNING: Cancer & Reproductive Harm -


  • 15803358
  • 15803358
  • 808709019039
  • ACDelco
  • Call to check stock.
  • New


Shipping Information

  • Item Requires Shipping
  • 2.6 lbs.
  • W7.4400” x H3.6900” x L36.1200”
  • 1 to 3 Day Delivery to Most Locations Within The Continental United States!

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California Residents: Prop 65

WARNING: Cancer and Reproductive Harm -