6.0L Power Stroke Blue Spring Fuel Pressure Regulator Upgrade Kit – 2003–2010 Ford
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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.
- 2003–2007 Ford F-250 Super Duty 6.0L Power Stroke
- 2003–2007 Ford F-350/F-450/F-550 Super Duty 6.0L Power Stroke
- 2003–2005 Ford Excursion 6.0L Power Stroke
- 2004–2010 Ford E-350/E-450 6.0L Power Stroke
- 2003–2008 Ford F-650/F-750 6.0L diesel—matching regulator housing
Product Overview
Hard starts, low power, injector chatter, or uneven running can send a 6.0L owner toward fuel-pressure testing. When pressure is low because the regulator spring and seals are worn, the blue-spring update helps restore the regulator to the later configuration.
This kit is not a substitute for diagnosis. Measure fuel pressure and inspect the filters, pump, standpipes, injectors, and leaks before deciding the regulator is the cause.
Key Features & Performance
- Updated blue regulator spring
- Supports proper fuel pressure at the secondary filter housing
- Includes service pieces for the matching regulator assembly
- Useful during verified low-pressure repair
Replaces Part Numbers
- 3C3Z-9T517-AG
- 6E7Z-9C165-B
- 1854267C94
Common Uses
- Updating an early regulator after low fuel pressure is confirmed
- Servicing leaking or hardened regulator seals
- Protecting injector operation by restoring regulated supply pressure
Technical Specifications
- Product Type: Fuel-pressure regulator spring upgrade kit
- Engine: Ford 6.0L Power Stroke diesel
- Spring Color: Blue
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Relieve fuel pressure and work on a cool engine
- Clean around the regulator cover before opening the housing
- Inspect the cover, seat, filters, and sealing surfaces
- Prime the fuel system, check for leaks, and verify pressure with a gauge
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Regulator-cover design and included kit contents vary by application. Match the housing and reference numbers, then confirm the final pressure against the vehicle service information.
Frequently Asked Questions
Q: What problem does the blue spring address? A: It updates the regulator spring used to control fuel pressure; verify low pressure with a gauge first.
Q: Will it fix every hard-start problem? A: No. FICM voltage, high-pressure oil, injectors, glow plugs, batteries, and fuel supply can cause similar symptoms.
Q: Does this fit a 7.3L Power Stroke? A: No. This listing is for compatible 6.0L applications.
Q: Should the fuel filters be changed during service? A: Inspect them and replace them if due or contaminated so a restricted filter does not remain in the system.
Part Summary
keywords: 6.0 Powerstroke blue spring kit, 3C3Z-9T517-AG replacement, 6E7Z-9C165-B regulator spring, 6.0 diesel low fuel pressure repair, Power Stroke fuel regulator upgrade
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.