Dorman 918-218 Automatic Transmission Oil Cooler

Overview of Dorman 918-218 Automatic Transmission Oil Cooler

The Dorman 918-218 automatic transmission oil cooler is designed to provide reliable cooling performance for select Chevrolet and GMC vehicles. Engineered with durable aluminum construction and precise dimensions, this cooler helps maintain optimal transmission temperatures for improved vehicle operation.

• Compatible with Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 models
• Constructed from corrosion-resistant aluminum with a black finish
• Core features 14 rows for efficient heat dissipation
• Dimensions: 6.1 inches height, 11 inches width, and 0.9 inches depth
• Inlet and outlet diameters approximately 18.375 and 18.338 mm with female threaded attachments
• Standard replacement grade without included installation hardware

Detailed Product Description

This Dorman automatic transmission oil cooler (part number 918-218) is built to meet the cooling demands of heavy-duty Chevrolet Express and GMC Savana vans. The aluminum core with 14 rows ensures effective heat transfer, helping to prevent transmission overheating during extended operation or heavy towing. Its compact size and black finish allow for straightforward integration into the vehicle’s cooling system without compromising space or durability. The female threaded inlet and outlet connections provide secure attachment points compatible with factory transmission lines.

Common Applications and Problem Solving

• Prevents transmission fluid overheating under heavy load or towing conditions
• Reduces risk of transmission failure due to excessive heat
• Replaces worn or damaged transmission coolers to restore proper cooling function
• Helps maintain consistent transmission fluid temperature for smoother shifting
• Addresses leaks or corrosion issues in original transmission cooler components

Installation Notes and Tips

Installation of the Dorman 918-218 transmission oil cooler requires basic mechanical skills and appropriate tools. Note that installation hardware is not included, so reusing existing mounting brackets and fittings or sourcing compatible hardware is necessary. Ensure all connections use proper thread sealant or tape to prevent leaks. Verify compatibility with Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 models before installation.

Quality Assurance and Warranty

Dorman provides this automatic transmission oil cooler as a standard replacement part manufactured from durable aluminum to meet OEM specifications. While installation hardware is not included, the product is designed for reliable performance and longevity. Warranty coverage details should be confirmed through Dorman’s official channels or product documentation.