SKU: 250-4205 | UPC: 672036040949
ARP Ford 6.0L Power Stroke Diesel CA625+ Head Stud Kit 2003-2007 F-250 F-350 Super Duty
This ARP head stud kit replaces factory head bolts on 2003-2007 Ford Super Duty trucks with 6.0L Power Stroke Diesel engines. It provides consistent clamping force to seal head gaskets under high cylinder pressures from tuned or boosted setups. Engine builders rely on ARP studs for builds exceeding stock power levels in F-250 F-350 F-450 F-550 and Excursion models.
Key Features
- CA625+ Alloy Studs: Forged from proprietary CA625+ material with 260,000 PSI tensile strength to withstand extreme combustion loads in diesel engines
- Complete Kit Contents: Includes 20 studs (10 at 215mm length, 10 at 170mm), chrome moly washers, and 12-point nuts for straightforward installation
- 12-Point Nuts: Deliver precise torque and resist loosening amid high-vibration conditions in Power Stroke applications
- Hardened Washers: Parallel-ground surfaces ensure even load distribution and prevent galling during assembly
- Reusable Design: Studs support repeated engine disassembly without replacement to reduce long-term costs
Product Notes
- Use ARP Ultra-Torque assembly lubricant on threads and under nut faces for correct preload
- Compatible with stock or aftermarket head gaskets and cylinder heads
- Kit MPN 250-4205 ships ready for immediate use
Installation Notes
- Professional installation recommended.
- Torque to ARP specs: inner studs 135 ft-lbs + 135 degrees, outer 70 ft-lbs + 105 degrees using angle torque method
- Requires removal of factory head bolts. clean threads thoroughly before installation
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2007 | Ford | F-250 Super Duty | Harley-Davidson Edition |
| 2004-2007 | Ford | F-250 Super Duty | King Ranch |
| 2003-2007 | Ford | F-250 Super Duty | Lariat |
| 2003-2007 | Ford | F-250 Super Duty | XL |
| 2003-2007 | Ford | F-250 Super Duty | XLT |
| 2004-2007 | Ford | F-350 Super Duty | Harley-Davidson Edition |
| 2003-2007 | Ford | F-350 Super Duty | King Ranch |
| 2003-2007 | Ford | F-350 Super Duty | Lariat |
| 2003-2007 | Ford | F-350 Super Duty | XL |
| 2003-2007 | Ford | F-350 Super Duty | XLT |
| 2003-2005 | Ford | Excursion | All |
| 2003-2007 | Ford | F-450 Super Duty | All |
| 2003-2007 | Ford | F-550 Super Duty | All |
Why Choose ARP?
- ARP fasteners power championship-winning race engines worldwide
- Every stud undergoes rigorous testing for consistent strength
- Precision machining ensures perfect fit and repeatable performance
Frequently Asked Questions
- Q: Will this kit fit my 2005 Ford F-250 Super Duty with 6.0L Power Stroke?
A: Yes, it fits all 2003-2007 Ford Super Duty trucks equipped with the 6.0L Power Stroke diesel engine including F-250, F-350, F-450, F-550, and 2003-2005 Excursion models - Q: What material are the studs made from?
A: Studs are forged from ARP’s exclusive CA625+ alloy, heat-treated to 260,000 PSI minimum tensile strength for superior clamping under boost - Q: What is the warranty on this head stud kit?
A: ARP provides a limited lifetime warranty against manufacturing defects when installed and maintained per instructions
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure ARP box measuring 11.75 x 9 x 2.5 inches
- Weight: 7.65 lbs








