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Fitment: 1993-1997 Mazda Miata (NA) and 1999-2005 Mazda Miata (NB), including the 2004-2005 Mazdaspeed. Fluidampr does not list the 1990-1992 Miata. Replace the water pump/alternator belt with the shorter belt specified above.
Part number: Fluidampr 521001
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-1997 | Mazda | Miata | All |
| 1999-2005 | Mazda | Miata | All |
Fluidampr® — Viscous Harmonic Balancers for Serious PerformanceFluidampr harmonic balancers (viscous torsional dampers) are engineered to control harmful crankshaft vibration across the entire RPM range. By converting twisting vibration into heat inside a sealed silicone-filled housing, Fluidampr helps stabilize the rotating assembly—improving durability, throttle response, and long-term reliability on street, track, and boosted builds.
Unlike tuned elastomer or pendulum balancers designed for a narrow frequency range, Fluidampr uses a viscous shear design that continuously adapts to changing harmonics. The result is reliable, broadband damping as you modify the engine or change operating conditions—no retune required.
Note: Check vehicle fitment, pulley configuration, and certification requirements for your series before purchase. Product specifications may vary by application.
Garage 56 believes so strongly in the products we sell that every item comes with a full 365-day replacement gurantee - regardless of the manufacturer warranty timeline.
In-stock orders placed before 1pm EST ship same day. All qualifying orders of $56 or more ship free. Flat-rate and expedited shipping options are available at checkout.
Items marked as "Special Order" are available for shipment direct from the manufacturer - also known as "drop shipping". In most instances we are able to ship directly to you however, in limited circumstances we will need to order the item into our warehouse before we are able to dispatch to you. In all cases, your form of payment will not be finalized until we confirm availability of all Special Order items - place your order with confidence!
After install, shifter vibration dropped significantly and the car felt much smoother; fitment was easy.
Immediate improvement in smoothness and reduced vibration; install was straightforward.
Required removing the crank bolt; on a 1.6 long‑nose without a timing wheel, a spacer was needed to keep the belt aligned. Once installed, performance was great.
