Fluidampr Steel Internally Balanced Damper for Mazda Miata (NA/NB)

Unleash the true potential of your Mazda Miata’s engine with the Fluidampr Steel Internally Balanced Damper, engineered to deliver race-winning performance and ultimate reliability. Trusted by top engine builders worldwide, this high-performance damper is designed to maintain OE-sized pulleys and retain the stock tone wheel, making it a seamless upgrade for your build.

Key Features & Benefits:

  • Precision Performance: Designed to reduce harmful engine vibrations, this damper optimizes engine efficiency, protects critical components, and enhances reliability under high-performance conditions.
  • Durable Construction: Made from premium steel and built to withstand the rigors of intense racing environments, ensuring long-lasting performance.
  • Includes Installation Hardware: Comes with 4x 12.9-grade M6x14mm bolts and a belt guide for a straightforward and secure installation.
  • SFI 18.1 Certified: Meets the stringent safety standards for competitive motorsports, giving you confidence on the track.
  • Made in the USA: Proudly crafted in the USA with superior quality and attention to detail, ensuring unmatched durability and performance.
  • Compatible with OE Setup: Retains stock tone wheel for hassle-free integration into your Miata's existing setup.

Whether you're building a track-day warrior or a high-performance street machine, the Fluidampr Steel Internally Balanced Damper is a must-have upgrade for racers who demand the best. Its cutting-edge design minimizes wear on engine components while maximizing power delivery, giving you a competitive edge in every race.

Part Number: 521001

Don’t settle for stock when you can dominate with precision-engineered performance. Upgrade your Mazda Miata with the Fluidampr Steel Internally Balanced Damper and experience smoother operation, enhanced durability, and race-ready reliability. Order now and take your Miata to the next level!


Installation Instructions


This Part Fits:

Year Make Model Submodel
1999 Mazda Miata 10th Anniversary
1993-1997,1999-2005 Mazda Miata Base
1993 Mazda Miata LE
2000-2005 Mazda Miata LS
1994-1997 Mazda Miata M Edition
2004-2005 Mazda Miata Mazdaspeed
2000-2003 Mazda Miata SE
2003 Mazda Miata Shinsen
1997 Mazda Miata STO

Fluidampr logo styled in black on a white backgroundFluidampr® — Viscous Harmonic Balancers for Serious Performance

Fluidampr 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.

Key Benefits

  • Reduces destructive torsional vibration to protect bearings, timing components, and the crankshaft.
  • Broadband damping performance—effective from idle to redline (no re-tuning or external weights).
  • Smoother operation for cleaner data, more consistent power delivery, and better drivability.
  • Maintenance-free sealed design built for high heat and high RPM environments.
  • Many applications offer SFI 18.1 certified options for competition use.
  • Precision construction with CNC-machined housings and wear-resistant internal components.

Ideal For

  • Turbocharged, supercharged, or high-compression engines.
  • Endurance racing, road course, time attack, drag, and spirited street performance.
  • Engines with lightweight flywheels, solid mounts, or other mods that amplify vibration.

What makes Fluidampr different?

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.

Why Buy from Garage 56 Engineering

  • Motorsports-focused curation—only parts we trust for real-world builds.
  • Helpful, enthusiast support for fitment and setup questions.
  • Secure checkout and fast fulfillment from a performance-first shop.

Note: Check vehicle fitment, pulley configuration, and certification requirements for your series before purchase. Product specifications may vary by application.

Shipping Policies

Free Shipping on all orders over $56.

For orders under $56, we offer ground shipping for only $9.99.

Need your parts faster? Flat-rate expedited shipping options are available.

Standard delivery in 3-5 business days or less.

For in-stock items, our free ground shipping reaches any of the 48 contiguous U.S. states in 5 business days or less.

International Shipments

Garage 56 Engineering provides the best service and quality parts to customers all over the globe every day. We understand that purchasing parts internationally can be stressful and would like you to know we are committed to helping at every step of the way.

Transit times listed on the website are estimates and will vary depending on your location as well as the amount of time it will take your government to process the order through customs. In most cases, orders take around a week to arrive but can be closer to two to three weeks to some countries.

You may be charged a duty (tax) on your order. We do not handle this tax and your local customs agency will charge you the correct amount per your local laws. It is your responsibility to review and understand these taxes when ordering.

Please note that our fitment data and vehicle selector is for United States of America Market cars only. If you are searching for parts for an international car please search for exact part numbers.


Return Policies

We have a 365-day return policy, which means you have 1 year after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at info@garage-56.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at info@garage-56.com.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

Customer Reviews

Based on 3 reviews
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V
Verified Buyer
Smoother drive, big NVH reduction

After install, shifter vibration dropped significantly and the car felt much smoother; fitment was easy.

V
Verified Buyer
Noticeably smoother, less vibration

Immediate improvement in smoothness and reduced vibration; install was straightforward.

V
Verified Buyer
Install notes: crank bolt & spacer; works great

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.

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