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Keystone GM4050112 Transmission Oil Cooler OEM Replacement - 15821239

Part of: Keystone Transmission Oil Cooler OEM Replacement

Other options in this family: Keystone CH4050120 Keystone CH4050124 Keystone CH4050108 Keystone CH4050146 Keystone FO4050126

Manufacturer

Picture for manufacturer Keystone

Part Number

GM4050112
5 reviews
Sale Price

$86.14

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Keystone GM4050112 is an OEM-replacement transmission oil cooler designed for the 6.6L Duramax diesel engine. Engineered to match original equipment specifications, this unit provides reliable automatic transmission fluid cooling to help protect the drivetrain under demanding towing and hauling conditions.

This cooler is a direct-fit replacement for the factory unit, requiring no modifications for installation. It replaces OEM part number 15821239 and is also cross-referenced under part numbers 19034 and 918-278.

Key Features:

  • Direct OEM replacement — matches factory fit, form, and function
  • Designed for the 6.6L Duramax LBZ/LMM diesel engine
  • Helps prevent transmission overheating and reduces component wear
  • Aluminum construction for efficient heat dissipation and corrosion resistance
  • No cutting, drilling, or modification required for installation

OEM & Cross-Reference Part Numbers: 15821239, 19034, 918-278

Ordering went quick and easy! Hopefully delivery goes quickly also!

I would like to rate 5 stars. However item description doesn't contain 3 year old manufacture date.

Enjoyed my experience. Found what I was looking for and shipped very quickly

Good !

Very ease to order and check out.

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