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Enhance the performance and durability of your Subaru EJ series engine with the Fluidampr Performance Damper (Part #531101). Normal stock dampers can wear out over time, and engine performance upgrades often increase harmful crankshaft torsional vibrations. Installing a Fluidampr viscous damper helps reduce wear on the main bearings and timing gear, improve valvetrain accuracy, and lower the risk of crankshaft failure.
Unlike rubber-based dampers, Fluidampr’s design automatically adapts to any engine modifications and self-tunes in real time across the entire RPM range for consistent protection. Precision machined and computer balanced, this damper requires no tuning or rebuilding—ensuring long-lasting, reliable performance.
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Reduces harmful crankshaft torsional vibrations
Improves main bearing and timing gear life
Ensures more accurate valvetrain operation
Self-tuning design adapts to engine modifications
Precision machined and computer balanced
Maintenance-free and rebuild-free operation
SFI 18.1 certified for safety and performance
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| Specification | Detail |
|---|---|
| Part Number | 531101 |
| Fitment | Subaru EJ Series Engines |
| Bore Diameter | 0.9436" |
| Degree Marking Range | TDC |
| Degree Markings | Engraved |
| Engine Balance | Internal |
| Finish | Black Zinc |
| Keyway | Single |
| Length | 1.927" |
| Material | Steel |
| Mounting Hardware Included | No |
| Outside Diameter | 5-3/8" |
| Safety Rating | SFI 18.1 |
| Weight / Rotating Weight | 6.9 lbs / 4.6 lbs |
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Subaru EJ Series Engines
