MAHLE B31584 oil filter adapter gasket for the 1998-2012 Ford Mustang 4.6L / 5.4L and other vehicles seals the oil filter adapter joint to keep engine oil from seeping out. Also called an engine oil filter adapter gasket, it replaces a worn seal at that joint.
Oil residue around the oil filter adapter or a dropping oil level can mean this gasket has worn out. Before you replace it, rule out other oil leak sources such as the drain plug or the valve cover, since oil from those can run down to the same area. One gasket goes on each engine's oil filter adapter.
It is a direct-fit replacement for the 1997-2010 Ford F-150 4.6L / 5.4L and the 2002-2010 Ford Explorer 4.6L. The vehicles it fits include many other trucks, vans and cars.
Fit and size
Build and materials
In the box: one oil filter adapter gasket.
Interchange: F65Z-6840-A · F65Z-6840-B · F6AZ-6840-BA
70801
This part cross-references / interchanges with the following part numbers:
Will the MAHLE B31584 work as an oil filter adapter gasket for the 2002-2010 Ford Explorer 4.6L?
Yes, MAHLE B31584 fits the 2002-2010 Ford Explorer with the V8-4.6L engine. For any other Ford, Lincoln or Mercury you own, look it up in the "Vehicles it fits" section to see whether it is listed.
Does the MAHLE B31584 fit V10-6.8L engines as well as V8-4.6L and V8-5.4L engines?
Yes. MAHLE B31584 is listed for V8-4.6L, V8-5.4L and V10-6.8L engines.
What is this MAHLE oil filter adapter gasket made of?
It is a molded rubber gasket with an item grade of OEM Standard, made in the United States. Each vehicle takes one.
How can I tell whether the oil filter adapter gasket is leaking?
With the engine off and cool, look for wet oil residue around the oil filter adapter, oil spots under the parked vehicle, or a dropping oil level. A shop can confirm where the oil is coming from.
Does F65Z-6840-A cross over to the MAHLE B31584 oil filter adapter gasket?
Yes. F65Z-6840-A is one of the numbers MAHLE B31584 replaces, along with F65Z-6840-B, F6AZ-6840-BA and 70801.
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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.
