Fluidampr Steel Externally Balanced Viscous Damper – 2011–2026 Ford 6.7L Power Stroke Diesel | SFI 18.1 Certified | CNC Machined | Made in USA

Serious power requires a serious damper. The Fluidampr Steel Externally Balanced Viscous Damper for the 2011–2026 Ford 6.7L Power Stroke diesel is engineered to protect your truck's engine with the viscous damper technology preferred by heavy-duty diesel OEMs — controlling harmful torsional vibration across the entire RPM range to reduce wear on engine components, reduce the risk of crankshaft failure, improve timing accuracy, and unleash lost torque and horsepower. SFI 18.1 certified, CNC machined from high-grade steel, and Made in USA. Trusted by leading performance diesel engine builders worldwide. Fluidampr is the most respected performance harmonic damper brand in the North American market — the standard choice for serious diesel performance and high-output engine builds where crankshaft protection and torsional vibration control are critical.

Key Features:

• Superior viscous damper design — Fluidampr's viscous damper technology controls harmful torsional vibration across the entire RPM range — the same technology preferred by heavy-duty diesel OEMs for crankshaft protection in demanding applications
• Reduces wear on engine components — uncontrolled torsional vibration accelerates wear on crankshaft bearings, timing components, and accessory drive components — the Fluidampr viscous damper controls this vibration to extend engine component service life
• Reduces risk of crankshaft failure — torsional vibration is a primary cause of crankshaft fatigue and failure in high-output diesel applications — the Fluidampr damper reduces the torsional stress that leads to crankshaft fatigue
• Improves timing accuracy — torsional vibration causes crankshaft position variation that affects fuel injection timing accuracy — controlling torsional vibration improves timing consistency for more efficient combustion and improved power delivery
• Unleashes lost torque and horsepower — energy absorbed by torsional vibration is lost power — controlling torsional vibration recovers this energy for improved torque and horsepower output
• CNC machined high-grade steel — competition-built precision CNC machined and balanced high-grade steel components — the correct material and manufacturing specification for a high-output 6.7L Power Stroke application
• Corrosion resistant black zinc finish — black zinc coating provides corrosion resistance for long-term durability in the demanding underbonnet environment of a diesel truck
• Engraved timing marks — engraved timing marks on the damper face for accurate timing reference — more durable and accurate than painted or stamped timing marks
• Externally balanced — correct for the 6.7L Power Stroke's external balance specification — the damper includes the correct external balance weight for the 6.7L's crankshaft balance configuration
• SFI 18.1 certified — SFI Foundation 18.1 certified — meets the safety and performance standards required for competition use
• No maintenance required — Fluidampr's viscous damper design requires no maintenance over its service life
• Made in USA — manufactured in the United States
• Trusted by leading performance diesel engine builders worldwide

Viscous Damper Technology — Why It Outperforms Rubber Dampers:

The factory Ford 6.7L Power Stroke harmonic balancer uses a rubber-bonded damper design — a rubber element bonded between the inner hub and outer inertia ring that absorbs torsional vibration through rubber compliance. While adequate for stock power levels, rubber-bonded dampers have significant limitations in high-output applications: the rubber element degrades over time and with heat exposure, losing its damping effectiveness; rubber dampers are tuned for a specific frequency range and become less effective outside that range; and rubber dampers can fail catastrophically if the rubber bond separates. Fluidampr's viscous damper uses a precision-machined steel housing filled with a calibrated silicone fluid — the inertia ring floats in the silicone fluid and absorbs torsional vibration through viscous shear across the entire RPM range. The viscous design does not degrade over time, does not have a narrow effective frequency range, and cannot fail catastrophically. For a high-output 6.7L Power Stroke build, the Fluidampr viscous damper is the correct crankshaft protection solution.

6.7L Power Stroke — Why Torsional Vibration Control Matters:

The Ford 6.7L Power Stroke is one of the most capable and widely modified diesel engines in the North American market — a platform where performance modifications (tuning, injector upgrades, turbo upgrades, compound turbo systems) significantly increase cylinder pressure and crankshaft torsional loads. As power output increases, torsional vibration increases proportionally — placing greater stress on the crankshaft, bearings, and timing components. The factory rubber-bonded harmonic balancer is not designed for the torsional loads generated by a modified high-output 6.7L Power Stroke. The Fluidampr viscous damper provides the torsional vibration control required to protect the crankshaft and engine components in a modified 6.7L application — a critical upgrade for any serious Power Stroke performance build.

Specifications:

• Brand: Fluidampr
• Part Number: FDR800241
• Barcode: 00815293004068
• Type: Viscous harmonic damper — externally balanced
• Material: CNC machined high-grade steel
• Finish: Corrosion resistant black zinc
• Timing Marks: Engraved
• Certification: SFI 18.1
• Maintenance: None required
• Origin: Made in USA
• Application: 2011–2026 Ford 6.7L Power Stroke diesel
• Weight: 18.2 lbs

Fitment Information:

• 2011–2026 Ford F-250 / F-350 / F-450 / F-550 Super Duty — 6.7L Power Stroke diesel (TD)
• Externally balanced — correct for the 6.7L Power Stroke's external balance specification
• Fitment Note 1: High Strength Bolt Kit p/n 300016 is recommended for high-performance applications — available separately.
• Fitment Note 2: Dry Sump Adapter p/n 400018 is available separately for dry sump applications.
• Fitment Note 3: Not compatible with high-output dual belt alternator configurations — verify your specific 6.7L Power Stroke accessory drive configuration before ordering.

What's Included:

• Fluidampr steel externally balanced viscous damper — 2011–2026 Ford 6.7L Power Stroke (FDR800241)
• Refer to Fluidampr's product documentation for complete kit contents and installation specifications

Installation Notes:

• Professional installation by an experienced diesel engine specialist strongly recommended — harmonic damper installation requires a damper installation tool to correctly press the damper onto the crankshaft snout without damaging the crankshaft or damper
• Never hammer a harmonic damper onto the crankshaft — hammering will damage the crankshaft snout and damper bore and can cause crankshaft bearing damage
• Use a damper installation tool (crankshaft installer) to press the damper onto the crankshaft snout — follow Fluidampr's installation instructions for correct installation depth and torque
• Torque the crankshaft bolt to the correct specification — for high-performance applications, Fluidampr recommends their High Strength Bolt Kit p/n 300016
• Verify correct timing mark alignment after installation — the engraved timing marks must align correctly with the engine's timing reference point
• Not compatible with high-output dual belt alternator configurations — verify accessory drive compatibility before installation

Why Fluidampr?

Fluidampr is the most respected performance harmonic damper brand in the North American market — the standard choice for serious diesel performance and high-output engine builds where crankshaft protection and torsional vibration control are critical. Fluidampr's viscous damper technology is preferred by heavy-duty diesel OEMs and trusted by leading performance diesel engine builders worldwide — a proven technology with decades of real-world validation in the most demanding diesel applications. For 6.7L Power Stroke owners who want the correct crankshaft protection solution for a high-output diesel build, Fluidampr is the definitive choice.

Perfect For:

• 2011–2026 Ford 6.7L Power Stroke owners who have modified their engine for increased power output (tuning, injector upgrades, turbo upgrades) and need the correct viscous damper to protect the crankshaft and engine components from increased torsional vibration loads
• High-output 6.7L Power Stroke builds where the factory rubber-bonded harmonic balancer is inadequate for the torsional loads generated by a modified engine and a Fluidampr SFI 18.1 certified viscous damper is the correct crankshaft protection solution
• Competition and sled pull 6.7L Power Stroke builds where SFI 18.1 certification is required and Fluidampr's CNC machined steel construction and viscous damper technology provide the correct performance and safety specification

Note: High Strength Bolt Kit p/n 300016 recommended for high-performance applications — available separately. Dry Sump Adapter p/n 400018 available separately. Not compatible with high-output dual belt alternator configurations — verify before ordering. Damper installation tool required — do not hammer onto crankshaft. Professional installation strongly recommended. SFI 18.1 certified. Made in USA.