Dorman 902-404HP Engine Coolant Bleeder Screw

Reliable Engine Coolant Bleeder Screw for BMW and Chrysler Vehicles

The Dorman 902-404HP engine coolant bleeder screw is designed to provide a secure and leak-free seal for your vehicle's cooling system. Compatible with a wide range of BMW models including the 3 Series, 5 Series, and X Series, as well as Chrysler, Dodge, Jeep, Mini, and Ram vehicles, this bleeder screw ensures proper coolant system maintenance and performance.

• Includes 1 bleeder screw and 1 o-ring for a complete seal
• Compatible with numerous BMW models such as 328i, 330i, 335i, X3, X5, and more
• Fits Chrysler, Dodge, Jeep, Mini, and Ram vehicles including Grand Cherokee, Wrangler, and ProMaster
• Durable construction designed to withstand engine heat and pressure
• Part number 902-404HP ensures precise fitment and easy identification

Product Details and Compatibility

This Dorman engine coolant bleeder screw (part number 902-404HP) comes with an o-ring to provide a tight, leak-resistant seal in the cooling system. It is engineered to fit a broad range of BMW vehicles, including popular models like the 1 Series (118i, 120i, 135i), 3 Series (318i, 320i, 328i, 335i), 4 Series (428i, 430i, 435i), 5 Series (520i, 528i, 530i), 7 Series (740i, 750i), and X Series SUVs (X1, X3, X5, X6, X7). Additionally, it is compatible with Chrysler, Dodge, Jeep, Mini, and Ram models such as the Grand Cherokee, Wrangler, Challenger, Charger, Durango, and ProMaster vans. The included o-ring helps maintain system integrity by preventing coolant leaks during engine operation.

Common Applications and Issues Addressed

• Eliminates air pockets in the cooling system to prevent overheating
• Prevents coolant leaks at the bleeder screw connection point
• Facilitates proper coolant bleeding during maintenance or repairs
• Helps maintain optimal engine temperature and performance
• Replaces worn or damaged bleeder screws to restore system reliability

Installation Notes and Tips

• Ensure the engine is cool before attempting installation to avoid burns
• Use the included o-ring to guarantee a proper seal and prevent leaks
• Bleed the cooling system according to the vehicle manufacturer’s procedure after installation
• Check for leaks after installation and during initial engine operation
• Use appropriate tools to avoid damaging the bleeder screw or surrounding components

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The 902-404HP engine coolant bleeder screw undergoes rigorous quality control to ensure proper fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.