HomeEngine > Gaskets and Sealing SystemsMahle SS45900 Engine Valve Stem Oil Seal Set - Intake and Exhaust
Part #: SS45900

Mahle SS45900 Engine Valve Stem Oil Seal Set - Intake and Exhaust

Intake and Exhaust
⚙️ 74 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mazda, and Mercury, Aerostar, B4000, Bobcat, Bronco II, Capri, Explorer, Mustang, Navajo, Pinto, and Ranger
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Reliable Engine Valve Stem Oil Seal Set for Ford, Mazda, and Mercury

The Mahle SS45900 Engine Valve Stem Oil Seal Set is engineered to provide precise sealing performance for select Ford, Mazda, and Mercury vehicles. Designed with durable fluoroelastomer material, this valve stem seal set ensures effective oil control and long-lasting reliability.

  • Inside diameter: 0.283 inches (7.2 mm)
  • Outside diameter: 0.459 inches
  • Thickness: 0.015 inches
  • Height: 0.015 inches (0.381 mm overall height)
  • Constructed from high-quality fluoroelastomer for heat and chemical resistance

Technical Details and Material Specifications

The Mahle SS45900 valve stem oil seal set features a precise inside diameter of 0.283 inches, matching the valve stem size for a secure fit. The outside diameter measures 0.459 inches, providing a tight seal within the valve guide. With a thickness and height of 0.015 inches, these seals maintain optimal compression to prevent oil leakage. The fluoroelastomer material offers excellent resistance to high temperatures and engine fluids, ensuring durability under demanding operating conditions.

Compatible Vehicles and Applications

This valve stem oil seal set is compatible with a range of Ford, Mazda, and Mercury models, including the Ford Aerostar, B4000, Bronco II, Capri, Explorer, Mustang, Navajo, Pinto, and Ranger, as well as the Mazda Bobcat. The SS45900 part number is specifically designed to meet the sealing requirements of these engines, making it suitable for maintenance and repair tasks involving valve stem oil seals.

  • Prevents oil leakage into the combustion chamber
  • Reduces valve guide wear and extends engine life
  • Maintains proper lubrication of valve stems
  • Helps control emissions by preventing oil burning
  • Addresses issues such as blue smoke from exhaust and oil consumption

Installation Notes and Tips

When installing the Mahle SS45900 valve stem oil seal set, ensure the valve stems and guides are clean and free of debris. Use appropriate tools to avoid damaging the seals during installation. Proper seating of the seals is critical to prevent oil leaks and maintain engine performance. Refer to vehicle-specific service manuals for torque specifications and installation procedures.

Quality Assurance and Warranty

Mahle manufactures the SS45900 valve stem oil seal set to meet stringent quality standards. The use of fluoroelastomer material ensures resistance to heat and chemical exposure typical in engine environments. While specific warranty details are not provided, Mahle products are generally backed by manufacturer quality controls to ensure reliable performance in compatible Ford, Mazda, and Mercury vehicles.

BrandMahle
Part NumberSS45900
Inside Diameter0.283
Thickness0.015
Outside Diameter0.459
Height0.015"
Inside Diameter0.283"
Upper Inside Diameter-Valve Side (mm)7.2
Valve Stem Seal MaterialFluoroelastomer
Valve Stem Seal Outside Diameter - B (in)0.459
Valve Stem Seal Stem Overall Height (mm)0.381

This part fits 74 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2000FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
2000FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
2000MazdaB40004.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1999FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1999FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1999MazdaB40004.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1998FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1998FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1998MazdaB40004.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1997FordAerostar4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1997FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1997FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1997MazdaB40004.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1996FordAerostar4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1996FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1996FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1996MazdaB40004.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1995FordAerostar4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1995FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1995FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1995MazdaB40004.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1994FordAerostar4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1994FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1994FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1994MazdaB40004.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1994MazdaNavajo4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1993FordAerostar4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1993FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1993FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1993MazdaNavajo4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1992FordAerostar4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1992FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1992FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1992FordRanger2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1992MazdaNavajo4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1991FordAerostar4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1991FordExplorer4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1991FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1991FordRanger2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1991MazdaNavajo4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1990FordAerostar4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1990FordBronco II2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1990FordRanger4.0LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1990FordRanger2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1989FordBronco II2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1989FordRanger2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1988FordBronco II2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1988FordRanger2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1987FordBronco II2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1987FordRanger2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1986FordAerostar2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1986FordBronco II2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1986FordRanger2.9LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1985FordBronco II2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1985FordRanger2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1984FordBronco II2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1984FordRanger2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1983FordRanger2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1979FordMustang2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1979FordPinto2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1979MercuryBobcat2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1979MercuryCapri2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1978FordPinto2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1978MercuryBobcat2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1977FordPinto2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1977MercuryBobcat2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1977MercuryCapri2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1976FordPinto2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1976MercuryBobcat2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1976MercuryCapri2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1975FordPinto2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1975MercuryBobcat2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1975MercuryCapri2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer
1974MercuryCapri2.8LV6Intake and ExhaustPositive Type; Contains 6, Priced as a Set; Fluoroelastomer

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

SS 72686

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.