Elring 446.970 Diesel Fuel Injection Prechamber Seal Ring

Overview of Elring Diesel Fuel Injection Prechamber Seal Ring 446.970

The Elring Diesel Fuel Injection Prechamber Seal Ring 446.970 is engineered for precise sealing performance in Mercedes-Benz diesel engines. Designed specifically for models such as the 300D, 300SD, 300SDL, 300TD, 350SD, 350SDL, E300, and S350, this seal ring ensures reliable operation of the fuel injection prechamber system.

• Constructed from durable aluminium material for effective heat resistance and longevity
• Inside diameter of 28.2 mm and outside diameter of 32.5 mm for exact fitment
• Thickness of 0.3 mm to maintain optimal sealing pressure
• A-shape design tailored for secure sealing in diesel fuel injection prechambers
• Compatible with a range of Mercedes-Benz diesel models including 300D and 350SDL

Technical Description and Specifications

This Elring seal ring, part number 446.970, is manufactured from aluminium, a material chosen for its balance of strength and thermal conductivity. The seal ring’s dimensions—28.2 mm inside diameter, 32.5 mm outside diameter, and 0.3 mm thickness—are critical for maintaining a tight seal within the diesel fuel injection prechamber. The A-shape profile is designed to conform precisely to the mating surfaces, preventing fuel leaks and ensuring consistent engine performance. This part is engineered to meet the specifications required by Mercedes-Benz diesel engines, providing a reliable seal under high temperature and pressure conditions.

Applications and Problem Solving

• Prevents fuel leakage in the diesel fuel injection prechamber
• Maintains compression integrity within the prechamber system
• Reduces risk of engine misfires related to sealing failures
• Helps avoid contamination of combustion chamber from fuel seepage
• Supports consistent engine performance and emissions control

Installation Notes and Tips

When installing the Elring Diesel Fuel Injection Prechamber Seal Ring 446.970, ensure the sealing surfaces are clean and free of debris. Proper alignment of the A-shaped seal ring is essential to avoid leaks. Use appropriate tools to avoid deforming the aluminium ring during installation. It is recommended to inspect the prechamber and surrounding components for wear or damage before fitting the new seal ring to ensure optimal sealing performance.

Quality Assurance and Warranty

Elring is known for manufacturing precision-engineered sealing components that meet OEM standards. The Diesel Fuel Injection Prechamber Seal Ring 446.970 undergoes strict quality control to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, Elring products typically conform to industry standards for durability and reliability in automotive applications.