Keep oil where it belongs at the valve guides with the MAHLE Engine Valve Stem Oil Seal Set SS45399. Each valve stem seal fits over the valve stem where it passes into the guide, metering the oil that lubricates the stem and limiting how much oil is drawn down into the intake or exhaust port and combustion chamber. It's a direct-fit replacement for hundreds of classic Ford, Lincoln, and Mercury applications, including the 1962-1963 FORD COUNTRY SEDAN [V8-3.6L], 1964-1968 FORD MUSTANG [V8-4.7L], 1969-1974 FORD F-250 [V8-5.0L], and 1975-1985 FORD F-150 [V8-5.0L].
Worn seals can let oil seep past the guides, so if hardened or cracked stem seals are the cause of blue startup smoke or oil use, this engine valve stem seal set replaces them. This part spans roughly 331 applications across many V6-3.8L, V8-3.6L, V8-4.2L, V8-4.3L, V8-4.7L, V8-5.0L, V8-5.8L, V8-6.6L, V8-7.0L, and V8-7.5L engines — see the Buyer's Guide tab for the full list.
What does the MAHLE SS45399 valve stem seal set do?
Each seal fits over the valve stem where it enters the guide, metering oil to lubricate the stem while keeping excess oil from being drawn down into the intake or exhaust port and combustion chamber.
What are signs my valve stem seals may need replacing?
Common signs include blue exhaust smoke (often on startup or deceleration), higher-than-normal oil consumption, and oil-fouled spark plugs. Diagnose the cause first, since these symptoms can have other sources.
Does this set include both intake and exhaust seals?
Yes. This set covers intake and exhaust valve stem positions, so it can service both on the listed engines.
Which vehicles does the MAHLE SS45399 fit?
It's a direct-fit replacement for hundreds of classic Ford, Lincoln, and Mercury applications, such as the 1964-1968 Ford Mustang V8-4.7L and 1975-1985 Ford F-150 V8-5.0L. See the Buyer's Guide tab for the full list.
Where is the SS45399 made?
The MAHLE valve stem oil seal set SS45399 has a country of origin of the United States.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
