Keep dirt and debris out of the fuel system with the Wix fuel filter 33393, a heavy-duty spin-on unit that traps contaminants before fuel reaches the engine. It is listed for the 1981 Nissan 720 (L4-2.2L), the 1986-1998 Isuzu NPR and 1994-1998 Isuzu NQR (L4-3.9L), the 1992-1998 Chevrolet W4500 Tiltmaster and GMC W4500 Forward (L4-3.9L), and Hino trucks including the 1998-2004 FA1517 (L4-5.3L) and 2003-2004 FD2320 (L6-8.0L). It also fits the 1981-1987 Toyota Land Cruiser, UD trucks, and a wide range of off-highway equipment such as Combilift forklifts, Generac generators, and Hitachi loaders and excavators. See the Buyer's Guide tab for the full list.
- Filtration media: enhanced cellulose media with a 10-micron rating.
- Spin-on fit: 3/4-16 thread size, 4.069 in height and 3.234 in top outer diameter.
- Heavy-duty ratings: 290 PSI burst pressure and an 8-10 GPM flow rate.
- Housing and seals: the can, center tube and end caps are high strength and corrosion resistant, paired with sealing components designed for leak resistance.
WIX HD fuel filters use high-quality, high-efficiency media chosen for the application, covering medium and heavy trucks as well as farm, construction, mining and other equipment. WIX recommends replacing them at OEM fuel filter change intervals.
Signs a fuel filter may need replacing include hard starting, hesitation or power loss under load, and stalling. If a clogged filter is the cause, this unit replaces it.
Most listed applications use one filter; the 1986-1998 Isuzu NPR (L4-3.9L) lists two. Country of origin: United States.
