Dorman 918-438 Engine Oil Cooler

Reliable Engine Oil Cooler for Buick, Chevrolet, Pontiac, and Saturn

The Dorman 918-438 engine oil cooler is designed to maintain optimal engine temperatures in select Buick, Chevrolet, Pontiac, and Saturn models. Engineered with durable aluminum and a brushed metal finish, this oil cooler supports efficient heat dissipation to protect your engine under demanding conditions.

• Core material constructed from lightweight aluminum for effective heat transfer
• Dimensions: 8.5 inches width, 3.5 inches length, 1.98 inches thickness
• Core features 7 rows with a tube width of 0.827 inches for enhanced cooling capacity
• Inlet and outlet diameters both measure 0.625 inches with female fitting types
• Includes mounting hardware with 3 bolts for straightforward installation
• Standard replacement grade ensuring compatibility and reliability
• Finished with a durable brushed metal surface in silver color

Detailed Product Description and Specifications

The Dorman 918-438 engine oil cooler is specifically designed for compatibility with Buick Cobalt, Chevrolet HHR, Pontiac G6, Saturn Sky, and other related models such as the Regal, Solstice, and Verano. Its aluminum core construction provides a balance of strength and thermal efficiency, while the 7-row core design maximizes surface area for heat exchange. The cooler measures 8.5 inches in width, 3.5 inches in length, and 1.98 inches in thickness, with a depth of 1.875 inches, making it a precise fit for the intended vehicles. Both inlet and outlet ports feature 0.625-inch female fittings, facilitating secure connections to existing oil lines. The silver brushed metal finish offers corrosion resistance and a professional appearance under the hood.

Common Applications and Problem Resolution

• Prevents engine overheating by maintaining proper oil temperature
• Reduces risk of engine oil breakdown and sludge formation
• Helps avoid premature engine wear caused by excessive heat
• Addresses leaks or damage from worn or faulty original oil coolers
• Supports engine performance in vehicles used for towing or heavy-duty driving

Installation Notes and Tips

• Includes all necessary mounting hardware with 3 bolts for secure attachment
• Ensure inlet and outlet fittings match existing oil lines (female 0.625 inch)
• Inspect surrounding components for wear or damage during installation
• Follow vehicle-specific service manual instructions for oil cooler replacement
• Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty Information

Dorman 918-438 is a standard replacement engine oil cooler manufactured to meet OEM specifications for fit, form, and function. The product undergoes quality control testing to ensure durability and performance. While a core charge is not applicable for this part, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to Dorman’s warranty policy for detailed terms.