ATI Ford Coyote 5.0L 6.78in 6 & 4 Grv Damper w//AC Pulley Kit (OEM Size SK1473)

ATI pulley 918055 is an exact drive-system component in the configuration. Confirm the ATI damper and hub, bolt pattern, groove count, belt width, drive ratio, companion pulleys, and required hardware before ordering.

Key Features

• OEM Size, Perfect Fit: 6.78-inch diameter with 6 & 4 groove serpentine pulleys, designed for seamless integration with Ford Coyote 5.0L engines.
• Durable Construction: Lightweight aluminum shell with black zinc chromate finish for corrosion resistance and longevity.
• Exceeds SFI 18.1 Specs: Certified for racing applications, ensuring safety and reliability under extreme conditions.
• Rebuildable & Tunable: Fully adjustable to maintain peak performance over time, unlike disposable competitors.
• ATI Super Damper Harmonic Balancer: 6.78-inch aluminum damper with 6 & 4 groove serpentine pulley configuration.
• Installation Hardware: All necessary components for a straightforward, bolt-on installation.

Fitment

This component is selected by engine, crankshaft, damper, hub, balance, and drive-system specifications rather than by vehicle name alone. Do not use year, make, and model as the only compatibility check.

Specifications

What’s Included

One new ATI component identified by manufacturer part number 918055. Hubs, pulleys, belts, bolts, washers, spacers, keys, tools, and installation hardware are included only when expressly stated for this exact part number.

About ATI Performance Products

ATI develops tunable and serviceable Super Dampers, crank hubs, pulleys, transmission components, and engine service hardware for performance and competition applications. Compatibility remains exact-part and engine-system specific.

Related ATI Components

• ATI Damper – 6.78in – Alum – (2) 6 Grv – Ford Coyote 5.0L – w/A/C Pulley – OEM Size
• ATI Damper – 7.48in – Alum – 8 & 6 Grv – Ford Coyote 5.0L – 10 Per OD – w/A/C Pulley
• ATI Damper – 6.78in – Alum – 6 Grv – Ford Coyote 5.0 – Mustang & F150 11+ – No A/C – OEM Size

Browse the ATI collection for additional dampers, pulleys, and service components.

Frequently Asked Questions

Which ATI damper works with pulley 918055?
Match this pulley to the exact ATI damper, hub, bolt pattern, groove count, belt width, and supercharger or accessory-drive configuration listed by ATI.

Will changing pulley diameter change boost or accessory speed?
Yes. A larger or smaller drive diameter changes the driven speed. Confirm the stated overdrive or underdrive percentage, belt length, tensioner range, and safe component speed.

Are belts and mounting hardware included?
Only items expressly identified for this exact part number are included. Confirm the required belt, bolts, spacers, hub, and companion pulleys before ordering.

Installation Instructions

Use the current ATI instructions and the engine manufacturer’s service information. Verify crankshaft and hub condition, key and spacer placement, required installer, fastener and washer, runout, pulley alignment, belt routing, clearances, and final torque. Never draw the damper on with an undersized or partially engaged bolt.