Mahle SS45940 Engine Valve Stem Oil Seal Set - Intake or Intake and Exhaust

Overview of Mahle Valve Stem Oil Seal Kit SS45940

The Mahle Valve Stem Oil Seal Kit SS45940 is engineered for precision sealing in various Audi, Mercedes-Benz, Porsche, and Volkswagen engines. Designed to maintain optimal valve stem lubrication, this kit supports reliable engine performance across multiple models including the Audi A4, Porsche Cayenne, and Volkswagen Golf.

• Inside diameter: 0.236 inches (6 mm valve side)
• Outside diameter: 0.48 inches
• Thickness and height: 0.382 inches (9.7 mm overall height)
• Constructed from metal with molded rubber for durability and effective sealing
• Compatible with a wide range of European vehicles including Audi A6 Quattro, Mercedes-Benz E300, and Porsche Carrera GT

Detailed Product Description

This engine valve stem oil seal set from Mahle is designed to provide a precise fit and reliable sealing performance. The seal’s metal core combined with molded rubber ensures resistance to heat and oil degradation, critical for maintaining valve stem lubrication and preventing oil leaks. With an inside diameter of 0.236 inches and an outside diameter of 0.48 inches, the seal fits tightly around the valve stem to prevent oil from entering the combustion chamber. The 0.382 inch thickness and 9.7 mm overall height provide a robust seal profile suitable for high-performance and daily-driven engines alike.

The Valve Stem Oil Seal Kit product line by Mahle focuses on delivering OEM-quality sealing components that meet or exceed factory specifications. This kit is part of that line, ensuring compatibility and durability for European luxury and performance vehicles.

Common Applications and Problem Solving

• Prevents oil leaks around valve stems in Audi A4 and Volkswagen Jetta engines
• Reduces valve stem wear caused by oil contamination in Mercedes-Benz E300 and Porsche RS6
• Maintains proper valve lubrication to avoid engine misfires and smoke in Porsche Cayenne and Audi S4
• Helps restore engine compression by sealing valve stems effectively in Volkswagen Passat and Audi A8 Quattro
• Addresses excessive oil consumption issues related to worn valve stem seals in Porsche 911 and Mercedes-Benz S8

Installation Notes and Tips

• Ensure the valve stem and guide are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal during installation
• Verify the seal orientation matches the valve side with the 6 mm upper inside diameter
• Check for proper seating and alignment to prevent premature wear or leaks
• Consult vehicle-specific service manuals for torque specifications and installation procedures

Quality Assurance and Warranty

Mahle’s Valve Stem Oil Seal Kit SS45940 is manufactured to meet stringent quality standards, using durable metal and molded rubber materials to withstand engine operating conditions. While specific warranty details are not provided, Mahle products typically adhere to OEM quality requirements, ensuring reliable performance and fitment for compatible Audi, Mercedes-Benz, Porsche, and Volkswagen models.