What is the primary function of a crankshaft damper?

A crankshaft damper, also known as a harmonic balancer, is designed to absorb torsional vibrations from the crankshaft. These vibrations can cause stress and damage to the crankshaft and other engine components over time, especially under load.

What does the dual groove pulley system allow for?

The dual 6-rib and 4-rib groove system on this damper allows for the use of multiple accessory belts. This means you can run your essential engine components like the alternator and water pump on one set of grooves, and accessories like the AC compressor on the other.

Does this kit include all necessary installation hardware?

This kit includes the crankshaft damper and the AC pulley. It is recommended to consult the manufacturer's installation instructions to determine if any additional hardware or specialized tools are required for proper installation on your specific vehicle.

Specifications

Brand: ATI
Part #: ATI918055
UPC: 800157090424

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

Name: ATI Ford Coyote 5.0L 6.78in 6 & 4 Grv Damper w//AC Pulley Kit (OEM Size SK1473)
Brand: ATI
SKU: ati-ati-ford-coyote-5-0l-6-78in-6-4-grv-damper-w-ac-pulley-kit-oem-size-sk1473-t14-798917
Price: 653.84 USD
Availability: BackOrder

$653.84

On Backorder — Expected to ship by May 3, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

Fits Ford Coyote 5.0L engines.
Features a 6.78-inch diameter.
Includes both 6-rib and 4-rib grooves for accessory belts.
Comes with an AC pulley for a complete kit.
Constructed with a steel shell and bonded iron outer ring to control torsional vibrations.
Designed as an OEM-sized replacement for a direct fit.

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About this part

Product Details

This ATI Crankshaft Damper Kit is built for the Ford Coyote 5.0L engine, featuring a 6.78-inch diameter and a dual 6-rib and 4-rib groove design. It's designed to be an OEM-sized replacement, ensuring it fits right into your existing setup without requiring modifications. The kit also includes an AC pulley, making it a comprehensive solution for your engine's front-end needs.

The damper itself is constructed from a robust steel shell with a bonded-iron outer ring, a design that effectively controls torsional vibrations. This is crucial for protecting your engine's crankshaft from damaging harmonics, especially in high-performance applications or when the engine is under significant load. By absorbing these vibrations, the damper helps extend the life of your crankshaft and other critical engine components. The inclusion of the AC pulley means you can maintain your air conditioning system while upgrading or replacing your damper.

This kit is a solid option for Coyote 5.0L owners looking for a reliable and well-built crankshaft damper and pulley assembly. It's designed to meet the demands of the Coyote engine, offering a balance of vibration control and functionality. When installing, ensure you follow the manufacturer's recommended procedures for proper alignment and securing the damper to the crankshaft to get the most out of its performance and longevity.