SKU: 251-4302 | UPC: 672036048907
ARP Ford EcoBoost 1.6L 4-Cylinder 12pt Head Stud Kit 2014-2019 Fiesta ST 2014-2018 Focus
The ARP Ford EcoBoost 1.6L 4-Cylinder 12pt Head Stud Kit replaces factory head bolts with high-strength studs for Ford performance builds. Designed for 2014-2019 Fiesta ST and 2014-2018 Focus models equipped with the 1.6L EcoBoost engine this kit ensures secure head clamping under high boost pressure. ARP studs maintain gasket seal and prevent lifting during aggressive tuning and track use.
Key Features
- ARP2000 Alloy Construction: Forged from premium material with 220,000 psi tensile strength to withstand extreme cylinder pressures in modified EcoBoost engines
- 12-Point Nuts: Heat-treated steel nuts provide accurate torque application and resist loosening under vibration and heat cycles
- Hardened Parallel Ground Washers: Steel washers evenly distribute clamping load across the head to avoid distortion
- Black Oxide Finish: Resists corrosion and galling for long-term durability in harsh engine environments
- Complete Kit: Includes 10 studs 10 nuts 10 washers and detailed instructions for straightforward replacement
Product Notes
- Use ARP Ultra-Torque lubricant during installation for precise torque values
- Torque studs in sequence to 65-70 ft-lbs depending on gasket type follow included specs
- Packaged in protective tube to prevent damage during shipping
Installation Notes
- Professional installation recommended.
- Remove cylinder head to install studs clean block threads thoroughly
- Compatible with OEM MLS gaskets and most aftermarket cylinder heads
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2018 | Ford | Focus | SE EcoBoost Titanium EcoBoost S EcoBoost |
| 2014-2019 | Ford | Fiesta | ST |
Why Choose ARP?
- Proven in NHRA Top Fuel and other pro racing series for decades
- Every stud thread rolled after heat treat for fatigue resistance
- Engineered and made in the USA with rigorous quality controls
Frequently Asked Questions
- Q: Will this kit fit Ford Focus ST 2.0L EcoBoost engines?
A: No this kit is designed specifically for 1.6L EcoBoost 4-cylinder. Use ARP 251-4303 for 2.0L applications. - Q: What is the stud thread size and length?
A: M11 x 1.5 thread with lengths varying from 3.750 to 7.250 inches per ARP engineering for exact fit. - Q: Does ARP offer a warranty on this head stud kit?
A: Yes ARP provides a limited lifetime warranty against manufacturing defects when installed and torqued correctly.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Protective plastic tube in 8 x 6 x 2 inch box
- Weight: 2 lbs
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