ATI Super Damper Crank Pulley for 4B11 Evo X
Street (918253)
$372.23
Skip to product information
$372.23
Product Overview
The street version delivers a 3% under-drive with a 5.67" diameter, maintaining OEM compatibility while improving power delivery. The race version features a larger 7.07" diameter and eliminates belt drives for reduced slippage and improved performance. Both versions are SFI 18.1 certified and include laser-etched timing marks for accurate installation.
Key Features
- Direct OEM replacement for stock damper in 2008–2015 Evolution X models
- Balanced torsional dampening across all RPM ranges for improved engine stability
- SFI 18.1 certified for competition use
- Street version features 3% under-drive with belt drive; race version has 7.07" diameter and no belt drive
- Laser-etched 360° timing marks for precise alignment
- Includes 3 external mounting bolts for A.R.E. dry sump mandrel installation (p/n 2750B)
Specifications
| Part Number | Street: 918253, Race: 918254 |
|---|---|
| Diameter | Street: 5.67", Race: 7.07" |
| Weight | Street: 6.00 lbs, Race: 6.15 lbs |
| Shell Material | Aluminum |
| Hub Material | Steel (1.0988" bore) |
| Inertia Weight | 2.24 lbs |
| Certification | SFI 18.1 |
Available Configurations
| Part Number | Configuration |
|---|---|
| ATID-918253 | Street (918253) |
| ATID-918254 | Race (918254) |
Applications
- 2008-2015 Evolution X with 4B11 engine
What's Included
- ATI Super Damper Crank Pulley (Street or Race version)
- 3 external mounting bolts