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39 owner reviews on Amazon
Availability checked 2026-09-19 · current price shown on Amazon
Need used or OEM instead? Salvage and take-off fuel system for this fitment turn up on eBay Motors.
Fuel Line Kit,7.3 Fuel Line Rubber Seal Kit Compatible with Ford Powerstroke Diesel Engine 1999-2003 Excursion F250 F350 F450 F550 Super Duty Replaces# F81Z9C387BA, F81Z-9C387-BA, 904-497. Fuel-system hardware to keep the Power Stroke fed reliably at stock and elevated power.
Best for: Reliable fueling at stock or elevated power
Where this part comes up in our Power Stroke roundups, top lists, and buying guides:
The 7.3L Power Stroke is the legendary reliable one — but it has a short, well-known list of weak points: the cam position sensor, under-valve-cover harness, fuel bowl and blue-spring regulator, crossover fuel lines, IDM/PCM, HPOP/IPR, and up-pipe donut gaskets. Here's each fault and the exact part that fixes it.
Read the guide GuideA plain-English comparison of the 7.3, 6.0, and 6.7 Power Stroke — power characteristics, known weak points, cost and ease of ownership, and a decision framework for which engine fits your budget and use case.
Read the guide GuideThe complete Ford Power Stroke fuel filter reference — which filter fits the 7.3, 6.0, 6.4, and 6.7L diesel, the correct Motorcraft FD-4616 / FD-4615 / FD-4625 and Doc's Diesel cross-references, the 2016-to-2017 6.7L split, change intervals, overdue-filter symptoms, the 6.7 plastic housing fix, and where to buy new (Amazon) or used/OEM housings (eBay Motors).
Read the guide
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Fuel Line Kit,7.3 Fuel Line Rubber Seal Kit F81Z9C387BA 904-497 for Ford | Powerstroke Diesel Engine 1999-2003 Excursion F250 F350 F450 F550 Super Duty F81Z-9C387-BA
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