Bosch Engine Air Filter P/N:5138WS
Bosch 5057WS air filter for the 1985-1986 Ford F-150 V8 5.0L and other vehicles traps wear-causing particles before intake air reaches the engine. This Bosch engine air filter protects the engine while supplying it a steady flow of clean air.
Weaker acceleration, lower fuel economy or a visibly clogged filter can mean the air filter is worn, though a dirty mass airflow sensor or a leaking intake duct can be behind the same signs, so find the cause before replacing it. Changing the filter on the recommended maintenance schedule helps prevent degraded fuel economy and performance.
Bosch air filters are designed and tested as direct OE replacements. This one is also an air filter for the 1985-1986 Ford F-250 V8 5.0L and the 1985-1986 Ford Bronco V8 5.0L, and each takes one.
Fit and size
Build and materials
Product information is for general reference and may contain errors. See our Disclaimer.
Is the Bosch 5057WS the right Ford F-150 air filter for a 1985-1986 model with the V8 5.0L?
Yes. Bosch 5057WS fits the 1985-1986 Ford F-150 V8 5.0L, one per vehicle. If your car is a different one, look it up in the "Vehicles it fits" section.
Is this a Ford F-250 air filter for the 1985-1986 V8 5.0L engine?
Yes. Bosch 5057WS fits the 1985-1986 Ford F-250 V8 5.0L, and that vehicle takes one filter.
What keeps unfiltered air from getting past the Bosch 5057WS?
A polyurethane seal blocks unfiltered air from bypassing this air filter. The resin-impregnated frame keeps the pleats stable and resists moisture.
How can I tell when this air filter is clogged?
With the engine off and cool, a filter whose pleats are packed with dirt or debris is worn out. Weaker acceleration and lower fuel economy can also be signs.
How is the Bosch 5057WS air filter tested?
It is air flow tested for engine performance, and its fit and form are dimensionally validated against the original filter for easy installation.
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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.