Genuine Ford 4C3Z-9B246-F HPOP STC Update Kit 2004.5-2007 6.0L Powerstroke

Fix one of the most common high-pressure oil system failure points on the 6.0L Powerstroke with the Genuine Ford 4C3Z-9B246-F STC HPOP Fitting Update Kit.

The original Snap-To-Connect fitting between the high-pressure oil pump and branch tube can develop leaks or separate, leading to extended crank, hot no-start, hard starting, or stalling. This updated Ford kit adds a support bracket and revised fittings to secure the connection and maintain proper high-pressure oil sealing.

This is an excellent preventive repair anytime the HPOP area is already exposed during oil cooler, EGR cooler, or other top-end service.

Features & Benefits:
- Genuine Ford OEM update kit
- Current STC HPOP fitting repair design
- Helps correct leaking or separating STC fittings
- Support bracket limits branch tube and fitting movement
- Helps address hard-start, hot no-start, extended crank, and stalling conditions
- Direct replacement for earlier Ford STC fitting revisions
- Recommended when the HPOP area is already accessible

Kit Includes:
1 Support Bracket
1 Hydraulic Pump Seal Kit
1 Branch Tube Adapter — Male
1 HPOP Adapter Fitting — Female
2 M6 x 35 mm Branch Tube Bolts
2 M8 x 60 mm Pump Bolts
3 M8 x 45 mm Pump Bolts

Part Information:
Brand: Genuine Ford
Ford Part #: 4C3Z-9B246-F
Type: STC HPOP Fitting Update / Pump Repair Kit
Engine: 6.0L Powerstroke Diesel
Supersedes / Replaces: 4C3Z-9B246-A, 4C3Z-9B246-C, 4C3Z-9B246-D, 4C3Z-9B246-E, 4C4Z-9C854-AA, 5C3Z-9C854-A, W301727

Vehicle Fitment:
2004.5–2007 Ford F-250 / F-350 / F-450 / F-550 Super Duty 6.0L Powerstroke
2004.5-2007 Ford Excursion 6.0L Powerstroke
2004.5-2010 Ford E-Series 6.0L Powerstroke Diesel
Important: Late-2004 application only. Verify HPOP/STC configuration before ordering on 2004 trucks.

Common Failure Symptoms:
- Hard starting when hot
- Extended crank
- No-start condition
- Sudden stalling
- Loss of high-pressure oil pressure
- Oil leakage from the HPOP/STC connection