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SKU: 959-111-102
Weapon R 02-04 Acura RSX Engine Damper
The Weapon-R Engine Damper is a precision underdrive crank pulley that fits 2002-2004 Acura RSX Base and Type-S models plus 2003-2005 Honda Civic Si. It dampens harmful crankshaft harmonics to prevent belt slip and pulley wobble while cutting parasitic drag from accessories. Drivers gain sharper throttle response and smoother high-RPM power delivery on K20 engines.
Key Features
- Underdrive Design: Smaller pulley diameter reduces accessory load by up to 25% freeing horsepower and torque for the wheels
- 92A Durometer Polyurethane Insert: Absorbs engine vibrations extending belt and bearing life while maintaining OEM-like accessory speeds
- Direct Bolt-On Fit: Replaces stock crank pulley with no modifications using factory hardware and belt
- Lightweight Construction: Aluminum pulley with polymer damper weighs just 8 ounces minimizing rotational mass
- Enhanced Traction: Prevents slippage under hard acceleration improving power transfer to drivetrain
Product Notes
- Confirm engine type K20A2 K20A3 or K20Z1 before purchase
- Use OEM or equivalent serpentine belt for best results
- Packaged in protective foam-lined box for damage-free delivery
Installation Notes
- Professional installation recommended.
- Requires crank pulley tool and harmonic balancer puller for removal
- Torque pulley bolt to 181 ft-lbs with engine at TDC on compression stroke
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2004 | Acura | RSX | Base |
| 2002-2004 | Acura | RSX | Type-S |
| 2003-2005 | Honda | Civic Si | - |
Why Choose Weapon-R?
- Established leader in JDM performance parts since 1998
- CNC-machined components ensure exact OEM tolerances
- Backed by dyno-tested gains on K-series engines
Frequently Asked Questions
-
Q: Will this fit my 2004 Acura RSX Type-S K20A2?
A: Yes it bolts directly to 2002-2004 RSX Type-S K20A2 K20A3 and 2003-2005 Civic Si K20Z1 crank snout -
Q: What material is the damper made from?
A: High-durometer 92A thermoplastic polyurethane fills the pulley to dampen harmonics without degrading over time -
Q: Does installation void warranty or require tuning?
A: No tuning needed and it uses stock belt hardware professional install takes 1-2 hours
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure box measures 8 x 6 x 4 inches
- Weight: 1 lb including packaging
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