Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
WIX · Filtration
57521
In stock · ships from Knoxville
The WIX 57521 is a spin-on, full-flow oil filter used in medium-duty diesel trucks, tilt-cabs, and commercial vehicles.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 18 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Chevrolet
Ford
GMC
Isuzu
Other applications
Chevrolet
Ford
GMC
Isuzu
Other applications
Primarily fits Isuzu 4HK1/4HE1/4BD1 diesel engines and GM/Chevrolet tilt-cab models. Also used in some Ford F-59 stripped chassis.
Part data verified against 5 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It employs high-capacity enhanced cellulose media to trap contaminants down to 22 microns, and includes an anti-drainback valve to prevent dry starts. This filter is a direct OEM replacement for many Isuzu, Chevrolet, and GMC models, providing reliable engine protection and long service life in heavy-duty applications.
Part Number: 57521
OIL FILTER
Dealer: Knox Trailers
Compatibility, alternatives, and more
