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SKU: 251-5002
ARP Ford Ecoboost 1.6L 4Cyl Main Bolt Kit 2013-2019 Fiesta ST Focus SE
ARP main bolt kit 251-5002 upgrades Ford 1.6L Ecoboost 4-cylinder engines in Fiesta ST and Focus SE models. These bolts secure main caps with high clamping force to handle boosted power levels without stretching or walking. Built for engine builders seeking dependable bottom-end strength.
Key Features
- ARP2000 Alloy Material: Forged construction with 220,000 psi tensile strength resists fatigue in high-horsepower applications
- Thread Rolling Process: Increases fatigue strength by 25 percent over cut threads for long-term durability
- 12-Point Head Design: Ensures precise torque and easy installation with standard tools
- Black Oxide Finish: Provides corrosion resistance and reduces friction during assembly
- Complete Kit Contents: Includes 10 main bolts sized M11 x 1.5 for direct replacement
Product Notes
- Torque to ARP specifications using moly lube for accurate clamping load
- Inspect main caps and bores before installation for best results
- Compact packaging fits easily in toolbox for trackside service
Installation Notes
- Professional installation recommended.
- Clean main cap threads thoroughly and chase with tap if needed
- Compatible with stock main caps. use ARP Ultra-Torque fastener lubricant
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2019 | Ford | Fiesta | ST 1.6L Ecoboost |
| 2012-2014 | Ford | Focus | SE 1.6L Ecoboost |
Why Choose ARP?
- Trusted by professional race teams in NHRA and NASCAR for decades
- CNC-machined to exact tolerances for consistent performance
- Engineered in the USA with rigorous quality testing
Frequently Asked Questions
-
Q: Does this kit fit 2013-2018 Ford Focus ST?
A: No, this 251-5002 kit is for 1.6L Ecoboost only. Focus ST uses 2.0L and requires ARP 254-5001 -
Q: What material are the bolts made from?
A: Proprietary ARP2000 chrome moly alloy, heat-treated for maximum strength and ductility -
Q: What is the warranty?
A: ARP offers a limited lifetime warranty against manufacturing defects when installed correctly
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Sturdy plastic tube inside box, 1 in x 7 in x 7 in
- Weight: 0.85 lbs
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