Protect your Honda/Acura B-Series engine with the Fluidampr Performance Harmonic Damper featuring a 35% underdrive alternator pulley design. Ideal for high-revving street and race builds, this damper effectively controls harmful torsional vibrations that factory rubber crank dampers can’t withstand—especially after modifications like higher RPM limits, cams, and lightweight internals.

Crafted from precision CNC-machined steel with a sleek black zinc finish, Fluidampr’s viscous performance technology reduces internal stress, enhances timing accuracy, and helps recover lost horsepower. Whether you’re driving a track-ready Integra Type R or a boosted B-Series Civic, this SFI 18.1-certified damper delivers unmatched reliability and long-term engine protection.

Features:

• 35% underdrive alternator pulley lowers parasitic drag for added power gains
• Controls crankshaft torsional vibration throughout full RPM operating band
• Protects against bearing wear and internal engine damage during high load
• Optimized for modified B-Series motors running higher power and RPM levels
• Durable CNC-machined steel construction for precise balance and longevity
• Black zinc coating protects against moisture, salt, and corrosion buildup
• Engraved degree marks ensure accurate ignition and timing alignment checks
• Zero-maintenance viscous damper design trusted in professional motorsport

Specifications:

• Brand: Fluidampr
• Outside Diameter: 6.25 in steel construction
• Weight: 8.8 lbs / 5.9 lbs rotating mass
• Finish: Black zinc anti-corrosion coating
• Keyway Type: Single keyed crank fitment
• Bore Diameter: 1.1008 in precision machined
• Balance Type: Internally balanced design
• Pulley Style: Alternator underdrive only
• Safety Rating: SFI 18.1 approved racing spec
• Drive System: Serpentine belt operation
• Timing Marks: Engraved 50° BTDC to 10° ATDC

Included: 

• (1) Harmonic Damper

Fitment:

• 1990–2001 Acura Integra LS / GS / SE 1.8L
• 1992–2001 Acura Integra GS-R 1.8L
• 1997–2001 Acura Integra Type R 1.8L
• 1994–1997 Honda Civic del Sol VTEC 1.6L
• 1999–2000 Honda Civic Si 1.6L B-Series
• 1997–2001 Honda CR-V 2.0L B20
• 1990–1991 Honda Prelude Si / ALB / 4WS 2.0L
• Fits Honda/Acura B-Series engines including B16A, B17A, B18A/B, B18C, B20B/Z

Note:

• 1 Year Warranty
• Does not include bolt or washer; reuse OEM hardware or upgrade as needed