CSF 20004 Automatic Transmission Oil Cooler

Automatic Transmission Cooling for Ram Trucks

CSF 20004 is a parallel-flow automatic transmission oil cooler built for 1994-2001 Dodge Ram 1500, Ram 2500, and Ram 3500 applications. It provides a direct-fit cooling solution for trucks that need stable transmission fluid temperatures under towing, hauling, or stop-and-go driving.

Key Features

• Parallel-flow construction for efficient heat transfer
• Core thickness: 5/8 in.
• Core width: 8 6/7 in.
• Core length: 17 1/4 in.
• Inlet tube and outlet tube connections
• Fits 1994-2001 Dodge Ram 1500, Ram 2500, and Ram 3500
• CSF part number 20004 for easy identification

Detailed Description

Built for Dodge Ram cooling system service, CSF 20004 transmission cooler uses a parallel-flow core layout to move heat away from automatic transmission fluid efficiently. The compact 5/8-inch core thickness and 17 1/4-inch core length support a practical fit in truck cooling packages, while the tube-style inlet and outlet connections simplify line routing during replacement. This part is a strong match for owners searching for a 1994-2001 Dodge Ram 1500 automatic transmission oil cooler, a 1994-2001 Dodge Ram 2500 transmission cooler, or a 1994-2001 Dodge Ram 3500 transmission cooler. This part cross-references BBB Industries 19098 for the same application.

Common Problems It Can Address

• High transmission fluid temperatures during towing or hauling
• Reduced cooling performance from a damaged or restricted cooler
• Transmission fluid overheating in heavy-duty Ram truck use
• Leaks or flow issues at the original cooler assembly
• Service replacement for worn factory transmission cooling components

Installation Notes and Tips

Verify cooler dimensions, line routing, and mounting space before installation. Inspect transmission lines, fittings, and surrounding cooling components for wear or contamination before connecting the replacement cooler. Flush the transmission cooler circuit as needed to remove debris from the previous unit and confirm proper fluid flow after installation. Fitment includes 1994-2001 Dodge Ram 1500, 1994-2001 Dodge Ram 2500, and 1994-2001 Dodge Ram 3500.

Quality Assurance

CSF is known for cooling-system components used in automotive service applications, and part number 20004 is built to match the listed fitment and dimensional specifications for Ram truck transmission cooling service.