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

The '.010in' indicates that these rings are .010 inches smaller than the standard size. This is used when a cylinder bore has been slightly enlarged during a rebuild or to account for wear, ensuring a proper fit.

What is the benefit of a moly-faced coating?

A moly-faced coating, using a molybdenum compound, helps the piston rings resist wear and tolerate higher temperatures. It also contributes to a better seal against the cylinder wall, which is crucial for engine performance.

Can these rings be shipped to California?

No, these piston rings are not CARB approved and cannot be shipped to California due to emissions regulations.

Specifications

Brand: S&S Cycle
Part #: 94-1296X
UPC: 94-1296X

S&S Cycle 1999+ BT 3-7/8in Piston Ring Set - .010in

Name: S&S Cycle 1999+ BT 3-7/8in Piston Ring Set - .010in
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-1999-bt-3-7-8in-piston-ring-set-010in-t14-661812
Price: 75.74 USD
Availability: BackOrder

$75.74

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. Offers improved wear resistance and sealing.

Key Features

This set includes piston rings for a 3-7/8 inch bore, .010 inch undersize.
Features a moly-faced coating for improved wear resistance.
The molybdenum compound offers better heat tolerance.
Designed for improved sealing capabilities between the piston and cylinder wall.
Intended for 1999 and newer Big Twin (BT) motorcycle engines.

This part is designed for 1999 and newer Big Twin (BT) motorcycle engines with a 3-7/8 inch bore, .010 inch undersize. Not CARB approved, cannot ship to California.

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About this part

Product Details

In this set, you get the piston rings for your 1999 and newer Big Twin (BT) engine, sized .010 inch undersize for a 3-7/8 inch bore. These rings are coated with a molybdenum compound, often called moly-faced. This coating is known for helping to resist wear, handle higher temperatures, and create a better seal between the piston and cylinder wall. This can lead to improved engine performance and longevity.

The moly coating on these rings helps them break in smoothly and maintain their sealing ability over time. This is important for keeping combustion pressure where it belongs and preventing oil from getting into the combustion chamber. For engines that see a lot of use or are being rebuilt for better performance, this type of ring can make a notable difference in how the engine runs and holds up.