ACDelco GM Original Equipment Engine Oil Cooler
OE
Pack of 1

ACDelco GM Original Equipment Engine Oil Cooler

GM Part #55505451

ACDelco Part #55505451

MSRP$150.72*

ACDelco GM Original Equipment Engine Oil Coolers are heat exchangers, and are GM-recommended replacements for your vehicle's original components.

  • 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

Pack of 1

About this product

ACDelco GM Original Equipment Engine Oil Coolers are heat exchangers, and are GM-recommended replacements for your vehicle's original components. These heat exchangers transfer heat to and from your vehicle's engine oil to the engine coolant or 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 the same performance, durability, and service life you expect from General Motors.

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  • 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

Mounting Hardware IncludedNo
Core MaterialAluminum
Core Row Quantity9
Width6.35in
Core Tube Width2.44in
Outlet Diameter0.55in
Inlet Diameter0.55in
ClassificationOE
Length13.7in

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

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

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

ModelBody StyleTrimYear(s)
Encore GXPreferred2020, 2021, 2022, 2023, 2024, 2025
EnvistaAvenir, Preferred, Sport Touring2024, 2025, 2026

Frequently Asked Questions

Yes. Overheated oil loses its viscosity and may cause failure in internal engine components.

Yes. Make sure to use a soft brush, or low pressure water, to help prevent damage to the cooler core fins.