Description
Genuine Motorcraft fuel/water filter kit for the 2017–present Ford F-650 and F-750 medium-duty trucks equipped with the 6.7L Power Stroke diesel. FD-4637 replaces the earlier FD-4626 service kit and crosses to Ford OEM HC4Z-9N184-B (and -A). The filter traps water and contaminants before they reach the high-pressure injection system, protecting the CP4 fuel pump and injectors against premature wear.
Specifications
| Manufacturer | Motorcraft (Genuine Ford OEM) |
|---|---|
| Part Number | FD-4637 |
| Part Type | Fuel / Water Separator Filter Kit |
| Engine Compatibility | Ford 6.7L Power Stroke (F-650 / F-750) |
| Supersedes | FD-4626 |
Cross References
This filter kit replaces or is equivalent to the following part numbers:
- Ford / Motorcraft: FD-4637, FD-4626, HC4Z-9N184-B, HC4Z-9N184-A
- Baldwin: PF46172
Applications
This fuel filter kit fits the following engines:
- Ford 6.7L Power Stroke diesel — F-650/F-750 medium-duty calibration (2017–present)
Representative vehicles using this engine:
- Ford F-650 (2017–present)
- Ford F-750 (2017–present)
Note: F-Series Super Duty pickups (F-250/F-350/F-450/F-550) with the 6.7L Power Stroke use a different filter (FD-4615 / FD-4647 family) — verify chassis class before ordering.
