Dorman 918-978 Automatic Transmission Oil Cooler
Automatic Transmission Oil Cooler for HD Trucks
Dorman 918-978 is an automatic transmission oil cooler built to match the function of the original unit on specified vehicles. It is a standard replacement for Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications from 2015-2019.
- Steel and aluminum construction
- Aluminum core material
- Painted finish
- Threaded inlet and outlet attachment types
- Standard replacement grade
- Black housing color
- Core row quantity: 10
- Cooling row quantity: 10
OE-Style Cooling Replacement
This Dorman transmission oil cooler is engineered to replace a failed factory cooler caused by heat, corrosion, or physical damage. It is designed for direct-fit service on 2015-2019 Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as 2015-2019 GMC Sierra 2500 HD and Sierra 3500 HD trucks. Part number 918-978 is built with a steel and aluminum body, aluminum core, and threaded connections for a service-ready replacement.
This part cross-references Carlson 19155 for the same application.
What It Helps Address
- Transmission fluid temperature issues caused by a damaged cooler
- Loss of cooling performance from corrosion or heat-related failure
- Leaks at the original cooler assembly
- Replacement needs after impact or road debris damage
- Restoration of factory-style transmission oil cooling on HD trucks
Installation Notes and Tips
Verify inlet and outlet connection style, cooler dimensions, and vehicle application before installation. The threaded inlet and outlet attachment types should be matched to the original setup, and the cooler should be inspected for line condition and mounting alignment during service. Part number 918-978 is intended for 2015-2019 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD fitments.
Quality Assurance
Dorman supplies standard replacement components engineered to match original function on listed applications. This cooler is built with aluminum core construction and a painted finish for service replacement use.
Original: $251.22
-65%$251.22
$87.93Dorman 918-978 Automatic Transmission Oil Cooler
Automatic Transmission Oil Cooler for HD Trucks
Dorman 918-978 is an automatic transmission oil cooler built to match the function of the original unit on specified vehicles. It is a standard replacement for Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications from 2015-2019.
- Steel and aluminum construction
- Aluminum core material
- Painted finish
- Threaded inlet and outlet attachment types
- Standard replacement grade
- Black housing color
- Core row quantity: 10
- Cooling row quantity: 10
OE-Style Cooling Replacement
This Dorman transmission oil cooler is engineered to replace a failed factory cooler caused by heat, corrosion, or physical damage. It is designed for direct-fit service on 2015-2019 Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as 2015-2019 GMC Sierra 2500 HD and Sierra 3500 HD trucks. Part number 918-978 is built with a steel and aluminum body, aluminum core, and threaded connections for a service-ready replacement.
This part cross-references Carlson 19155 for the same application.
What It Helps Address
- Transmission fluid temperature issues caused by a damaged cooler
- Loss of cooling performance from corrosion or heat-related failure
- Leaks at the original cooler assembly
- Replacement needs after impact or road debris damage
- Restoration of factory-style transmission oil cooling on HD trucks
Installation Notes and Tips
Verify inlet and outlet connection style, cooler dimensions, and vehicle application before installation. The threaded inlet and outlet attachment types should be matched to the original setup, and the cooler should be inspected for line condition and mounting alignment during service. Part number 918-978 is intended for 2015-2019 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD fitments.
Quality Assurance
Dorman supplies standard replacement components engineered to match original function on listed applications. This cooler is built with aluminum core construction and a painted finish for service replacement use.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Automatic Transmission Oil Cooler for HD Trucks
Dorman 918-978 is an automatic transmission oil cooler built to match the function of the original unit on specified vehicles. It is a standard replacement for Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications from 2015-2019.
- Steel and aluminum construction
- Aluminum core material
- Painted finish
- Threaded inlet and outlet attachment types
- Standard replacement grade
- Black housing color
- Core row quantity: 10
- Cooling row quantity: 10
OE-Style Cooling Replacement
This Dorman transmission oil cooler is engineered to replace a failed factory cooler caused by heat, corrosion, or physical damage. It is designed for direct-fit service on 2015-2019 Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as 2015-2019 GMC Sierra 2500 HD and Sierra 3500 HD trucks. Part number 918-978 is built with a steel and aluminum body, aluminum core, and threaded connections for a service-ready replacement.
This part cross-references Carlson 19155 for the same application.
What It Helps Address
- Transmission fluid temperature issues caused by a damaged cooler
- Loss of cooling performance from corrosion or heat-related failure
- Leaks at the original cooler assembly
- Replacement needs after impact or road debris damage
- Restoration of factory-style transmission oil cooling on HD trucks
Installation Notes and Tips
Verify inlet and outlet connection style, cooler dimensions, and vehicle application before installation. The threaded inlet and outlet attachment types should be matched to the original setup, and the cooler should be inspected for line condition and mounting alignment during service. Part number 918-978 is intended for 2015-2019 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD fitments.
Quality Assurance
Dorman supplies standard replacement components engineered to match original function on listed applications. This cooler is built with aluminum core construction and a painted finish for service replacement use.
