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SKU: 203-4101 | UPC: 672036044152
ARP Cylinder Head Stud Kit for 2000-2011 Toyota Echo Yaris Scion xA xB 1.5L (1NZFE) DOHC ARP2000
ARP Cylinder Head Stud Kit delivers reliable head fastening for Toyota 1.5L 1NZ-FE DOHC engines in Echo Yaris and Scion xA xB models. Built with ARP2000 alloy heat-treated to 220,000 PSI this kit provides consistent clamping force under high loads. Professional engine builders choose ARP for racing and street performance builds.
Key Features
- ARP2000 Alloy: Proprietary material heat-treated to 220,000 PSI tensile strength for maximum durability in high-compression setups
- Centerless Ground: Precision machining ensures concentricity so cylinder heads and gaskets align perfectly without binding
- Thread Rolled After Heat-Treat: Increases fatigue strength by 2000% compared to pre-heat-treat threading for long-term reliability
- Undercut Stud Design: Equalizes stretch across studs to maintain even clamping force and resist head gasket failure
- Black Oxide Finish: Provides corrosion resistance and smooth installation on 2000-2011 Toyota Scion 1NZ-FE engines
Product Notes
- Torque to ARP specifications using provided instructions for best results
- Compatible with OEM and aftermarket head gaskets on 1NZ-FE applications
- Ships in protective ARP packaging to prevent damage
Installation Notes
- Professional installation recommended.
- Apply ARP Ultra-Torque fastener lubricant to threads and under heads
- Follow ARP torque sequence and values printed on packaging
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000-2005 | Toyota | Echo | Base |
| 2004-2006 | Scion | xA | Base |
| 2004-2006 | Scion | xB | Base |
| 2006-2011 | Toyota | Yaris | Base S |
Why Choose ARP?
- Relied on by professional engine builders for all competition powerplants
- Premium 8740 and ARP2000 alloys exceed aircraft quality steels
- Exact tolerances allow heads and gaskets to glide into position
Frequently Asked Questions
-
Q: Will this kit fit my 2004 Scion xB with 1NZ-FE?
A: Yes it fits all 2004-2006 Scion xA xB models equipped with the 1.5L 1NZ-FE DOHC engine -
Q: What makes ARP2000 material different?
A: ARP2000 is a proprietary alloy heat-treated to 220,000 PSI with thread rolling after heat-treat for superior fatigue resistance -
Q: What is the ARP warranty on these studs?
A: Lifetime warranty against failure due to manufacturing defects or fatigue when installed and torqued per ARP instructions
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: ARP retail box 7 x 7 x 1 inches
- Weight: 1.85 lbs shipping weight
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