Dorman 54238 Engine Coolant Reservoir Cap

Overview of Dorman Engine Coolant Reservoir Cap 54238

The Dorman Engine Coolant Reservoir Cap 54238 is designed specifically for Mazda 3 and Mazda 3 Sport models. This black, plastic coolant cap features a threaded, twist-on design that ensures a secure fit and proper sealing for your vehicle's cooling system.

• Material: Durable black plastic construction
• Diameter: 50.5 mm for precise fitment
• Attachment Type: Threaded for secure installation
• Type: Twist cap for easy removal and replacement
• Vented design to allow pressure equalization
• Non-pressurized and without a pressure release lever
• Dimensions: 2.4 inches in length and width
• Package includes one coolant reservoir cap

Detailed Product Description

The Dorman 54238 engine coolant reservoir cap is engineered to meet the specifications required for Mazda 3 and Mazda 3 Sport vehicles. Made from high-quality plastic, this cap provides a reliable seal to maintain the integrity of the coolant reservoir. Its vented design allows for proper pressure equalization within the cooling system, preventing vacuum lock and ensuring consistent coolant flow. The threaded, twist-on attachment type simplifies installation and removal without compromising the seal. This cap is not pressurized and does not include a pressure release lever, making it suitable for specific cooling system configurations found in compatible Mazda models.

Common Applications and Issues Addressed

• Prevents coolant leaks from the reservoir
• Maintains proper pressure balance in the cooling system
• Prevents air from entering the coolant reservoir
• Helps avoid overheating caused by improper sealing
• Replaces worn or damaged coolant reservoir caps on Mazda 3 and 3 Sport

Installation Notes and Tips

• Ensure the coolant reservoir neck is clean and free of debris before installation
• Align the cap threads carefully and twist clockwise until securely tightened
• Do not overtighten to avoid damaging the plastic threads
• Check for leaks after installation by running the engine and inspecting the reservoir cap area

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The Engine Coolant Reservoir Cap 54238 undergoes quality checks to ensure durability and reliable performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship for their replacement parts.