What is the purpose of the elastomer rings in a crankshaft damper?

The elastomer rings inside a crankshaft damper are designed to absorb torsional vibrations generated by the engine's combustion cycles. This helps to smooth out engine operation and reduce stress on the crankshaft and drivetrain.

What do the different durometer ratings (80 and 70) mean?

Durometer is a measure of hardness. The two 80 durometer rings are firmer and designed to absorb higher frequency vibrations, while the softer 70 durometer ring handles lower frequency vibrations, providing a broader range of dampening.

Does this kit include the outer housing or the inner hub for the damper?

This kit specifically contains the elastomer rings only. It is intended for use when rebuilding an existing ATI crankshaft damper where the outer housing and inner hub are still in good condition.

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Specifications

Brand: ATI
Part #: ATI918980-80
UPC: 800157035340

ATI Elastomer Kit - 3 Ring - 6 - w/80/80/70

Name: ATI Elastomer Kit - 3 Ring - 6 - w/80/80/70
Brand: ATI
SKU: ati-ati-elastomer-kit-3-ring-6-w-80-80-70-t14-361661
Price: 41.91 USD
Availability: BackOrder

$41.91

On Backorder

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ATI Elastomer Kit - 3 Ring - 6 - w/80/80/70. Replaces worn damper elastomers for improved engine balance.

Key Features

Fits ATI 3-ring crankshaft dampers.
Includes three elastomer rings: two 80 durometer and one 70 durometer.
Helps absorb torsional vibrations from the crankshaft.
Restores proper engine balance when replacing worn damper components.

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About this part

Product Details

If you're rebuilding or servicing your engine's crankshaft damper, replacing the elastomer is a key step to restoring proper balance. This 3-ring elastomer kit from ATI is designed to fit specific ATI dampers, helping to absorb torsional vibrations that can travel through the drivetrain.

This kit includes three rings with specific durometer ratings: two at 80 and one at 70. These different hardnesses allow the damper to absorb a wider range of vibrations across different engine speeds. Using the correct elastomer ensures your ATI damper functions as intended, reducing stress on the crankshaft and other engine components.