Genuine 1239900053 Fuel Pump Cap Nut

Reliable Fuel Pump Cap Nut for Mercedes-Benz Models

The Genuine fuel pump cap nut, part number 1239900053, is designed specifically for select Mercedes-Benz vehicles. This essential hardware component ensures secure fastening of the fuel pump assembly, maintaining proper fuel system integrity for models like the 190E, 300SL, and SL series.

Key Features of the Genuine Fuel Pump Cap Nut

• Compatible with Mercedes-Benz 190E, 300SL, 500SL, 600SL, SL320, SL500, and SL600 models
• Durable construction for long-lasting performance
• Precision fit to OEM specifications
• Part number 1239900053 ensures exact replacement
• Essential for maintaining fuel system sealing and safety

Product Details and Compatibility

This Genuine fuel pump cap nut is engineered to meet the exact requirements of Mercedes-Benz fuel and air delivery systems. It is a critical fastener that secures the fuel pump assembly, preventing leaks and ensuring consistent fuel delivery. The part number 1239900053 corresponds to this specific cap nut, making it a direct replacement for worn or damaged components on Mercedes-Benz 190E, 300SL, 500SL, 600SL, SL320, SL500, and SL600 models. Using the correct fuel pump cap nut helps maintain the integrity of the fuel system and supports optimal engine performance.

Common Applications and Issues Addressed

• Prevents fuel leaks caused by loose or damaged cap nuts
• Eliminates fuel pump assembly movement and vibration
• Restores proper sealing of the fuel delivery system
• Replaces corroded or stripped fasteners in older Mercedes-Benz models
• Supports safe and reliable fuel system operation

Installation Notes and Tips

• Ensure the fuel pump assembly is properly aligned before tightening the cap nut
• Use appropriate torque specifications to avoid over-tightening or damage
• Inspect surrounding fuel system components for wear during installation
• Replace any damaged seals or gaskets to maintain fuel system integrity

Quality Assurance and Warranty Information

As a Genuine part, the fuel pump cap nut 1239900053 is manufactured to meet Mercedes-Benz OEM standards. This ensures reliable fitment and durability for the specified models. While specific warranty details may vary, Genuine parts typically come with manufacturer-backed quality assurance to support long-term vehicle performance and safety.