Water Separator Fuel Filter P551329 J930942 Fit for Case 721C 821C W36 621B 721
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Water Separator Fuel Filter for Case 721C 821C W36 621B 721
This water separator fuel filter, referencing OEM cross-reference numbers P551329 and J930942, removes water and contaminants from diesel fuel to maintain engine performance. It is a reliable replacement filter for Case 721C, 821C, W36, 621B, and 721 wheel loaders.
Overview
This water separator fuel filter is a robust filtration component designed for Case wheel loader fuel systems. It separates water and particulate matter from diesel, ensuring clean fuel reaches the injection pump and injectors. Fitting models such as 721C, 821C, W36, 621B, and 721, this filter supports consistent engine operation and reduces downtime.
Built For Performance
- Multi-layer filtration media removes water and fine particles
- Durable steel construction handles high fuel flow rates
- Precise thread pitch matches OEM filter heads
- Corrosion-resistant coating extends service life
- Sealed gasket prevents fuel leaks under pressure
Fits These Machines
- for Case 721C
- for Case 821C
- for Case W36
- for Case 621B
- for Case 721
On-The-Job Use
- Used in heavy construction and earthmoving operations
- Replaces clogged or water-saturated filters during field service
- Installed during preventive maintenance in aggregate and material handling
Specs At A Glance
| Part Number(s) | P551329, J930942 |
| Type | Water Separator Fuel Filter |
| Compatible Brands | Case |
Good To Know
Q: What does the water separator do in a fuel filter? A: It uses a specially designed media to coalesce and trap water droplets while letting clean fuel pass through. This prevents water from reaching the fuel injectors, which can cause corrosion and poor combustion.
Q: Can I install this filter myself? A: Yes, with basic mechanical skills and standard tools. Drain any water from the old filter, replace it, and prime the fuel system according to the machine's service manual.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.