Engine
Fluidampr 610921 Harmonic Balancer Pulley | Nissan Skyline R32 & R34 (RB20DET / RB25DET NEO)
Upgrade the reliability and performance of your RB‑series engine with the Fluidampr 610921 Viscous Harmonic Balancer, engineered for the 1989–1993 Nissan Skyline R32 and 1998–2000 Nissan Skyline R34. Factory elastomer dampers degrade with age, heat, and modifications—especially on boosted or high‑RPM builds. Fluidampr’s race‑proven viscous technology delivers unmatched vibration control across the entire RPM range, protecting your crankshaft, improving timing stability, and unlocking smoother, more consistent power.
Why Choose Fluidampr for Your Skyline?
Modifications, increased boost, and higher RPM operation can compromise the stock harmonic balancer. Installing a Fluidampr performance damper early ensures long‑term durability and engine protection. Its self‑tuning viscous design absorbs harmful torsional vibrations that traditional rubber dampers cannot manage, reducing wear on internal components and lowering the risk of crankshaft failure.
Built from precision CNC‑machined steel, finished in corrosion‑resistant black zinc, and equipped with engraved timing marks, the 610921 is a premium, maintenance‑free solution trusted by top engine builders worldwide. It’s also SFI 18.1 certified, making it suitable for competitive motorsports.
A Legacy of Proven Technology
Fluidampr was created when professional race engine builders approached Vibratech TVD in the mid‑1980s seeking a more durable, high‑performance damper. The result was a viscous damper capable of controlling crankshaft vibration across a broad frequency range—far beyond the limitations of elastomer designs.
Today, Fluidampr technology is used in motorsports, exotic automotive applications, marine performance, and even defense industry OEM programs. From OEM race teams to grassroots tuners, Fluidampr is the leading name in viscous harmonic balancers. Import owners appreciate how each damper is optimized for their engine’s specific needs. Proudly made in the USA and shipped worldwide.
Features
- Bore Diameter: 1.1800"
- Degree Marking Range: TDC + 6 marks at 5° increments
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Engraved timing marks for accuracy
- Overall Length: 2.765"
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High‑quality steel damper with high‑quality aluminum pulley
- Pulley Groove Quantity: 4 rear / 4 middle / 4 front
- Outside Diameter: 6‑1/8"
- Black zinc chromate finish
- Internally balanced
- SFI 18.1 certified
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Pulley bolts included (balancer bolt not included)
Benefits
- Increased engine reliability
- Improved ignition and cam timing stability
- Reduced torsional vibration across the full RPM range
- Lower risk of crankshaft and bearing damage
- Smoother power delivery and potential torque/HP recovery
- Zero maintenance required
Applications
- 1989–1993 Nissan Skyline R32
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1998–2000 Nissan Skyline R34
Compatible with RB20DET and RB25DET NEO Phase‑1 engines.
How Fluidampr Dampers Work
Fluidampr harmonic balancers use only three core components:
- A laser‑welded sealed housing
- An internal inertia ring
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Highly viscous silicone fluid between the two
This design allows the damper to control all crankshaft vibration frequencies—not just a narrow band—resulting in:
- Reduced main bearing and timing gear wear
- More stable valve train operation
- Lower risk of crankshaft failure
Protect your engine. Modifications can compromise your stock harmonic balancer. Install a Fluidampr performance damper early for best durability. Superior viscous damper design controls harmful torsional vibration across the entire rpm range. Reduce wear on engine components. Reduce risk of crankshaft failure. Improve timing. Unleash lost torque and horsepower. Precision CNC machined and balanced high-grade steel components. Corrosion resistant black zinc finish with engraved timing marks. No maintenance required. Trusted by leading engine builders worldwide. SFI 18.1 certified. Made in USA.
