Mazda MZR Harmonic Balancer - Fluidampr - Steel Internally Balanced - Black - `03-`13 is a direct-fit performance damper engineered for 2003–2013 Mazda MZR 2.3L and 2.5L engines. It replaces the factory balancer with a steel, internally balanced Fluidampr unit designed for long-term durability and harmonic control.

Built in the USA to SFI 18.1 specification, this Fluidampr uses a fluid-filled, internally balanced design to absorb torsional vibration across a broad RPM range. The unit retains the stock tone wheel and OE-size pulley spacing for straightforward installation without modifying the crank sensor or accessory drive. Finished in black zinc chromate on steel, it offers corrosion resistance and a compact 6" diameter, approximately 7 lb mass, making it suitable for street, track, and high-rev applications where crank protection and reliability matter. This damper is race-proven for over 35 years and requires no routine maintenance.

Features

• Fitment: 2003–2013 Mazda MZR 2.3L / 2.5L
• Construction: Steel, internally balanced Fluidampr design
• Finish: Black zinc chromate
• Size/Weight: ~6" diameter, ~7 lbs
• Certification: SFI 18.1
• Compatibility: OE-size pulleys; retains stock tone wheel
• Maintenance: No routine maintenance required
• Origin: Made in USA

If you have questions or want help confirming fitment, call us directly — we’re happy to advise. We have installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to schedule service or ask about compatibility. If you’re considering multiple items, please contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov