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SKU: 207-5201 | UPC: 672036037239
ARP Mitsubishi 2.0L (4B11) 4-Bolt Turbo Main Bolt Kit 2008-2015 Lancer Evolution
This ARP kit replaces stock main bolts on Mitsubishi 4B11 turbo engines with high-strength 4-bolt hardware designed for boosted applications. It fits 2008-2015 Lancer Evolution models including GSR MR and MR Touring trims. These bolts provide secure clamping to handle extreme cylinder pressures and prevent main cap walk during high-horsepower builds.
Key Features
- ARP2000 Alloy Construction: Forged steel with 220,000 psi tensile strength exceeds factory bolts for boosted reliability
- Precise Thread Design: Rolled threads resist fatigue and ensure accurate torque on 4B11 main caps
- Hardened Parallel Ground Washers: Included for even load distribution and reusable installation
- Black Oxide Finish: Provides corrosion resistance in engine oil environments
- 4-Bolt Turbo Configuration: Exact replacement for 4B11T mains supporting up to 1000+ whp setups
Product Notes
- Inspect main caps for straightness before installation
- Use ARP Ultra-Torque lubricant for accurate fastener preload
- Ships in protective packaging to prevent thread damage
Installation Notes
- Professional installation recommended.
- Torque to ARP specs: 70 ft-lbs + 135 degrees for mains
- Compatible with stock and aftermarket main studs hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008 | Mitsubishi | Lancer Evolution | GSR |
| 2010-2014 | Mitsubishi | Lancer Evolution | GSR |
| 2008 | Mitsubishi | Lancer Evolution | MR |
| 2010-2014 | Mitsubishi | Lancer Evolution | MR |
| 2010-2011 | Mitsubishi | Lancer Evolution | MR Touring |
Why Choose ARP?
- Trusted by NHRA Pro Stock and Formula 1 teams for decades
- Every batch lot-controlled and proof-loaded beyond yield point
- CNC-machined for micron-level tolerances in critical engines
Frequently Asked Questions
-
Q: Does this kit fit all 4B11 turbo engines in Evo X?
A: Yes it matches 2008-2015 Lancer Evolution GSR MR and MR Touring with stock 4-bolt main layout -
Q: What material are these bolts made from?
A: ARP2000 proprietary alloy steel heat-treated to 220,000 psi with rolled threads for superior fatigue resistance -
Q: What is the warranty on ARP kits?
A: Lifetime warranty against manufacturer defects 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: Compact clamshell box 6 x 4 x 1 inches
- Weight: 0.3 lbs
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