Mahle SS45959 Engine Valve Stem Oil Seal Set - Intake and Exhaust

Reliable Valve Stem Oil Seal Set for Jaguar and Lincoln Vehicles

The Mahle SS45959 Engine Valve Stem Oil Seal Set is engineered to provide precise sealing performance for select Jaguar and Lincoln models. Designed with durable fluoroelastomer material, this seal set ensures effective oil control and helps maintain engine efficiency.

• Inside diameter: 0.173 inches (4.4 mm)
• Outside diameter: 0.984 inches
• Thickness: 0.028 inches
• Height: 0.028 inches (0.704 mm overall height)
• Constructed from high-quality fluoroelastomer for heat and chemical resistance

Technical Details and Material Specifications

The Mahle SS45959 valve stem oil seals feature a precise inside diameter of 0.173 inches, matching the valve stem size for a secure fit. The outside diameter measures 0.984 inches, providing a tight seal within the valve guide bore. With a thickness and height of 0.028 inches, these seals maintain proper clearance and prevent oil leakage. The fluoroelastomer compound offers excellent resistance to high temperatures and engine fluids, ensuring long-lasting durability in demanding engine environments.

Compatible Jaguar and Lincoln Models

This valve stem oil seal set is compatible with Jaguar LS, S-Type, and X-Type models, as well as select Lincoln vehicles. The SS45959 part number corresponds to the exact specifications required for these engines, making it a suitable replacement part for maintaining optimal valve stem sealing performance.

Common Applications and Problem Resolution

• Prevents oil leakage around valve stems
• Reduces valve guide wear caused by oil contamination
• Maintains engine oil pressure and efficiency
• Helps avoid blue smoke from exhaust due to oil burning
• Supports consistent engine performance and emissions control

Installation Notes and Tips

When installing the Mahle SS45959 valve stem oil seal set, ensure the valve stems and guides are clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal is seated evenly to prevent leaks. It is recommended to replace valve stem seals in pairs or sets to maintain balanced engine operation.

Quality Assurance and Warranty

Mahle manufactures this valve stem oil seal set to meet strict OEM standards for fit and function. The fluoroelastomer material is selected for its durability under high temperature and chemical exposure. While specific warranty details are not provided, Mahle products typically adhere to industry quality controls to ensure reliable performance in Jaguar and Lincoln engines.