Dorman 918-257 Automatic Transmission Oil Cooler

Overview of Dorman 918-257 Automatic Transmission Oil Cooler

The Dorman 918-257 automatic transmission oil cooler is designed to provide reliable cooling performance for select Chrysler and Dodge vehicles. Engineered with durable aluminum construction and a compact design, this transmission oil cooler helps maintain optimal transmission fluid temperature for improved vehicle operation.

• Constructed from corrosion-resistant aluminum with a black finish
• Core features 4 rows for efficient heat dissipation
• Compact dimensions: 11.02 inches width, 2.42 inches height, and 0.905 inches depth
• Inlet and outlet diameters both measure 0.393 inches with hose barb attachment types
• Includes transmission oil cooler and mounting bracket; installation hardware not included
• Standard replacement grade for dependable performance

Detailed Product Description

The Dorman 918-257 automatic transmission oil cooler is specifically designed to fit Chrysler and Dodge models including the 300M, Concorde, Intrepid, and LHS. Its aluminum core with four rows ensures effective cooling by maximizing surface area for heat exchange. The black finish provides corrosion resistance and durability under typical operating conditions. Both the inlet and outlet use hose barb fittings with a diameter of 0.393 inches, facilitating straightforward connection to existing transmission fluid lines. The cooler’s compact size allows for easy integration into the vehicle’s cooling system without requiring extensive modifications.

Compatible Vehicles and Applications

This transmission oil cooler is compatible with the following vehicles:

• Chrysler 300M
• Chrysler Concorde
• Dodge Intrepid
• Chrysler LHS

It is designed to replace the original equipment cooler and maintain proper transmission fluid temperatures, which is critical for transmission longevity and performance.

Common Issues Addressed by This Transmission Oil Cooler

• Overheating of transmission fluid during heavy use or towing
• Reduced transmission efficiency due to elevated fluid temperatures
• Premature transmission wear caused by inadequate cooling
• Fluid leaks or damage in the original transmission cooler
• Maintaining consistent transmission temperature for smooth shifting

Installation Notes and Tips

• Ensure compatibility with your specific Chrysler or Dodge model before installation
• Use appropriate hose clamps for the 0.393 inch hose barb fittings to prevent leaks
• Mount the cooler securely using the included bracket; additional hardware may be required
• Inspect transmission fluid lines for wear or damage during installation
• Flush transmission fluid if contamination is suspected before installing the new cooler

Quality Assurance and Warranty

The Dorman 918-257 transmission oil cooler is manufactured to meet standard replacement quality requirements. Constructed from durable aluminum with a corrosion-resistant finish, it is designed for reliable service life. While installation hardware is not included, the package contains the cooler and mounting bracket to facilitate proper installation. Warranty coverage details should be confirmed with the product documentation or supplier.