Description
Fuel Filter & Cap Kit for 1999-2003 Ford 7.3L Powerstroke — FD-4596
Precision Fuel Filter Cap — OEM-Spec Fit
Replace your worn or cracked fuel filter cap with this precision-engineered replacement for Ford 7.3L Powerstroke. Manufactured to exact OEM tolerances, this cap ensures a leak-proof seal that maintains proper fuel system pressure. Don't risk fuel leaks or air intrusion — a properly sealed filter cap is critical for reliable engine starting and operation.
Key Features
-
Leak-Proof Seal — Integrated O-ring groove ensures consistent sealing pressure across full temperature range
-
OEM-Quality Construction — Manufactured to ISO/TS 16949 quality standards with 100% end-of-line testing
-
Direct Fit — Precision-engineered to match OEM dimensions and mounting points — no modifications required
-
Corrosion Resistant — Coated/plated components withstand diesel fuel, road salt, and moisture exposure
-
Validated for Ford — Confirmed fitment across all listed applications
Compatibility
| Make |
Engine |
Year Range |
Model |
| Ford |
7.3L Powerstroke |
1999-2003 |
F-250 Super Duty |
| Ford |
7.3L Powerstroke |
1999-2003 |
F-350 Super Duty |
| Ford |
7.3L Powerstroke |
1999-2003 |
F-450/F-550 Super Duty |
| Ford |
7.3L Powerstroke |
2000-2003 |
Excursion |
| Ford |
7.3L Powerstroke |
1999-2003 |
E-350/E-450 |
Always verify fitment using the cross-reference part numbers below or contact our support team.
Cross-Reference Part Numbers
| Brand |
Part Number |
| Motorcraft |
FD-4596 |
| Ford |
F81Z-9G270-BA |
| NAPA |
FIL3548 |
| WIX |
33830 |
| Baldwin |
PF9911 |
| Dorman |
904-203 |
Specifications
| Specification |
Value |
| Part Number |
Fuel |
| Brand |
iFJF |
| Product Type |
Fuel Filter |
| Application |
7.3L Powerstroke |
| Vehicle Make |
Ford |
| Material |
Steel/Plastic Composite |
| Country of Origin |
China (ISO Certified) |
| Warranty |
1 Year / Unlimited Mileage |
Installation Guide
Professional installation is recommended. Always refer to your vehicle or engine service manual for specific torque specifications and priming procedures. Replace all O-rings and seals during filter service — never reuse old seals.
Maintenance Schedule
Inspect during every filter service for signs of wear, cracking, or corrosion. Replace immediately if any damage is detected.
Frequently Asked Questions
Q: Is this an OEM or aftermarket fuel filter cap?
This is a high-quality aftermarket replacement cap manufactured to exact OEM specifications for 7.3L Powerstroke. It provides the same fit, seal, and durability as the factory cap at a fraction of the dealer price.
Q: Does the cap come with a new O-ring?
Yes, this fuel filter cap includes a new Viton O-ring pre-installed for a leak-free seal. We recommend replacing the O-ring every time the filter is serviced.
Q: What causes a fuel filter cap to fail?
Fuel filter caps commonly fail due to over-torquing during installation (which cracks the plastic), UV/heat degradation of the plastic material, or O-ring deterioration causing air leaks.
Q: How tight should I torque the fuel filter cap?
Typically 25-35 Nm depending on your specific vehicle. Always refer to your service manual for the exact torque specification. Over-tightening is a leading cause of cap failure.
Q: Will a bad fuel filter cap cause starting problems?
Yes. A cracked or poorly sealed fuel filter cap can allow air into the fuel system, causing hard starts, rough running, and loss of prime — especially after the vehicle sits overnight.
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