{"product_id":"fluidampr-13-18-ford-focus-st-2-0l-15-23-ford-mustang-2-3l-ecoboost-steel-internally-balanced-damper","title":"Fluidampr Steel Internally Balanced Viscous Damper | Ford 2.0L \/ 2.3L EcoBoost I4 | Focus ST\/RS, Mustang EcoBoost, Ranger, Bronco | 610211","description":"\u003ch2\u003eFluidampr Steel Internally Balanced Viscous Damper – Ford 2.0L \/ 2.3L EcoBoost I4 | Focus ST\/RS, Mustang EcoBoost, Ranger, Bronco | 610211\u003c\/h2\u003e\n\u003cp\u003eThe Fluidampr 610211 is a purpose-built viscous crankshaft damper for the Ford 2.0L and 2.3L EcoBoost inline-four — protecting your engine from the harmful torsional vibration that increases with every performance modification you make. Designed for high-performance street, road racing, rally, and off-road applications, the Fluidampr viscous damper controls crankshaft harmonics across the \u003cem\u003eentire\u003c\/em\u003e RPM range — not just the narrow frequency band the factory elastomer damper was tuned for. The result is long-term engine durability, stable accessory drive operation, and reduced wear on critical rotating assembly components, regardless of how far your EcoBoost build has evolved from stock.\u003c\/p\u003e\n\u003ch3\u003eWhy Your Modified EcoBoost Needs a Fluidampr\u003c\/h3\u003e\n\u003cp\u003eEvery crankshaft experiences torsional vibration — a twisting and unwinding motion caused by the firing pulses of the engine. The factory damper uses an elastomer (rubber) ring bonded between an inner hub and outer inertia ring to absorb these vibrations. This design works adequately on a stock engine operating within its original design parameters, but it has two fundamental limitations that become increasingly significant as you modify your EcoBoost:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNarrow tuning range:\u003c\/strong\u003e Elastomer dampers are tuned to absorb vibration at a specific frequency — the resonant frequency of the stock crankshaft assembly. When you increase torque output, raise the RPM ceiling, or change the rotating assembly (forged internals, lighter flywheel, upgraded clutch), the crankshaft’s resonant frequency changes. The factory damper, tuned for the stock configuration, becomes progressively less effective at controlling the harmonics your modified engine is actually generating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDegradation over time:\u003c\/strong\u003e The rubber elastomer in the factory damper hardens, cracks, and loses its damping properties with age, heat cycling, and oil exposure. A degraded elastomer damper provides little to no protection — and unlike a viscous damper, there is no visible external indication that it has failed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFluidampr’s viscous damping technology eliminates both limitations. A sealed chamber filled with calibrated silicone fluid surrounds the inertia ring — the fluid’s viscous shear resistance absorbs torsional energy across the full RPM range, regardless of the crankshaft’s resonant frequency. There is no narrow tuning band, no rubber to degrade, and no loss of effectiveness as your build evolves.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscous Damping – Full RPM Range Protection:\u003c\/strong\u003e Fluidampr’s calibrated silicone fluid viscous damping technology controls crankshaft torsional vibration across the entire RPM range — not just the narrow frequency band of the factory elastomer design. Effective from idle to redline, and remains effective regardless of changes to the rotating assembly or power output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternally Balanced:\u003c\/strong\u003e The 610211 is internally balanced — it incorporates internal balance weights that replicate the factory damper’s balance contribution to the rotating assembly. This means it can be installed as a direct replacement for the factory damper without requiring the rotating assembly to be rebalanced. Critical spec for a street or daily-driven build where a rotating assembly teardown for rebalancing is not practical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel Construction:\u003c\/strong\u003e Precision-machined steel construction provides superior strength and dimensional stability compared to aluminium dampers — maintaining accurate concentricity and balance under the thermal and mechanical loads of high-performance operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports Long-Term Engine Durability:\u003c\/strong\u003e By controlling crankshaft harmonics, the Fluidampr reduces fatigue stress on the crankshaft, main bearings, rod bearings, and accessory drive components — extending the service life of critical engine components on a modified EcoBoost that is operating well beyond its original design envelope\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable Accessory Drive:\u003c\/strong\u003e Uncontrolled crankshaft torsional vibration causes erratic belt tension fluctuations that accelerate wear on the accessory drive belt, tensioner, idler pulleys, and driven accessories. The Fluidampr’s consistent damping stabilises the accessory drive, reducing wear and preventing premature failure of belt drive components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad EcoBoost I4 Fitment:\u003c\/strong\u003e The 610211 fits the entire Ford 2.0L and 2.3L EcoBoost I4 family across multiple platforms — Focus ST, Focus RS, Mustang EcoBoost, Ranger, Bronco, and Bronco Sport Badlands. One damper covers the full range of EcoBoost I4 performance builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluidampr USA Engineering:\u003c\/strong\u003e Fluidampr is manufactured in the USA and is the performance aftermarket’s leading viscous crankshaft damper brand — trusted by professional engine builders, road racers, and rally teams for applications where engine durability under sustained high-performance use is non-negotiable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFord Focus ST — 2.0L EcoBoost I4 (2013–2018)\u003c\/li\u003e\n\u003cli\u003eFord Focus RS — 2.3L EcoBoost I4 (2016–2018)\u003c\/li\u003e\n\u003cli\u003eFord Mustang EcoBoost — 2.3L EcoBoost I4 (2015–2023)\u003c\/li\u003e\n\u003cli\u003eFord Ranger — 2.3L EcoBoost I4 (2019–2025)\u003c\/li\u003e\n\u003cli\u003eFord Bronco — 2.3L EcoBoost I4 (2021–2025)\u003c\/li\u003e\n\u003cli\u003eFord Bronco Sport Badlands — 2.0L EcoBoost I4 (2021–2025)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eVerify fitment for your specific model year and engine variant before ordering. Fitment may vary by market and production date. Confirm the 610211 is the correct part number for your specific application using Fluidampr’s fitment guide before purchasing.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Fluidampr\u003c\/li\u003e\n\u003cli\u003ePart Number: 610211\u003c\/li\u003e\n\u003cli\u003eType: Viscous Crankshaft Damper\u003c\/li\u003e\n\u003cli\u003eConstruction: Steel\u003c\/li\u003e\n\u003cli\u003eBalance: Internally Balanced\u003c\/li\u003e\n\u003cli\u003eDamping Technology: Calibrated Silicone Fluid Viscous\u003c\/li\u003e\n\u003cli\u003eApplication: Ford 2.0L \/ 2.3L EcoBoost I4\u003c\/li\u003e\n\u003cli\u003eOrigin: Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Use a proper harmonic damper installation tool — never drive the damper onto the crankshaft snout with a hammer or impact, as this will damage the crankshaft thrust bearing. Torque the crankshaft bolt to the manufacturer’s specification — the EcoBoost crankshaft bolt is a torque-to-yield fastener and must be replaced with a new bolt at installation. Professional installation recommended.\u003c\/p\u003e","brand":"Fluidampr","offers":[{"title":"Default Title","offer_id":51264770900135,"sku":"FDR610211","price":724.64,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/8344\/1063\/files\/dcd9af1bd753db88d120c53c453988b2L.jpg?v=1787800058","url":"https:\/\/www.straightsiximports.com\/products\/fluidampr-13-18-ford-focus-st-2-0l-15-23-ford-mustang-2-3l-ecoboost-steel-internally-balanced-damper","provider":"Straight Six Imports","version":"1.0","type":"link"}