What does the Moly coating on the piston rings do?

The Moly coating on these piston rings is a molybdenum compound that improves wear resistance and heat tolerance. It also helps the rings seal better against the cylinder wall, which can lead to improved engine performance and reduced oil consumption.

What does '.010in' mean for these piston rings?

The '.010in' designation means these piston rings are 0.010 inches undersize. This sizing is used when the cylinder bore has been honed or machined to a slightly larger diameter during an engine rebuild.

Are these piston rings compatible with all Harley-Davidson XL engines?

These rings are specifically designed for XL engines and fit a broad range of Harley-Davidson models from 1984-1999. It's important to verify fitment for your exact model and year using the provided fitment data.

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Specifications

Brand: S&S Cycle
Part #: 94-1211X
UPC: 94-1211X

S&S Cycle 86-03 XL 3-5/8in Piston Ring Set - .010in

Name: S&S Cycle 86-03 XL 3-5/8in Piston Ring Set - .010in
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-86-03-xl-3-5-8in-piston-ring-set-010in-t14-662396
Price: 65.63 USD
Availability: BackOrder

$65.63

On Backorder

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

S&S Cycle Moly Faced piston ring set, .010in undersize. Fits many Harley-Davidson models 1984-1999.

Key Features

Fits 26+ vehicle make/model combinations.
Moly Faced piston rings offer improved wear resistance.
Molybdenum coating provides better heat tolerance.
Coating enhances sealing capabilities for improved compression.
Piston rings are .010 inch undersize.
Designed for XL engines.

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About this part

Product Details

This set includes Moly Faced piston rings, sized .010 inch undersize, for your XL engine. These rings are coated with a molybdenum compound, which helps them resist wear and tolerate higher heat compared to standard rings. This coating also contributes to better sealing within the cylinder, helping to maintain compression and reduce oil consumption.

The Moly coating is a practical touch that improves the longevity of the rings and the overall health of your engine. It's a well-built component that's designed to work within the specific tolerances of your engine build. These rings are a solid option for rebuilding or refreshing the top end of your motorcycle, offering improved performance and durability.

This set is designed to fit a wide range of Harley-Davidson models from 1984 through 1999, including popular bikes like the Dyna Super Glide and Heritage Softail Classic. Always refer to your service manual for specific installation procedures and torque specifications.