What does 'moly-faced' mean for these piston rings?

Moly-faced means the rings have a coating of molybdenum. This material is known for improving wear resistance, handling higher temperatures, and creating a better seal against the cylinder wall compared to standard cast iron rings.

Are these rings suitable for all 1999+ Big Twin engines?

This set is specifically for engines with a 3-7/8 inch bore size. While it fits 1999 and newer Big Twin models, you should always confirm your engine's bore size and specific application before purchasing.

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 #: 94-1295X
UPC: 94-1295X

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

Name: S&S Cycle 1999+ BT 3-7/8in Piston Ring Set - Standard
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-1999-bt-3-7-8in-piston-ring-set-standard-t14-661820
Price: 76.75 USD
Availability: BackOrder

$76.75

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 is known for high-performance motorcycle engine parts. This standard moly-faced piston ring set improves wear resistance and sealing for 1999+ Big Twin engines.

Key Features

Fits 1999 and newer Big Twin engines with a 3-7/8 inch bore.
Moly-faced coating offers improved wear resistance and heat tolerance.
Helps create a better seal between the piston and cylinder wall for improved performance.
Standard size rings for a direct replacement in many rebuilds.
From S&S Cycle, a well-known name in performance motorcycle engines.

This piston ring set is designed for 1999 and newer Big Twin engines with a 3-7/8 inch bore. Please verify compatibility with your specific motorcycle model.

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About this part

Product Details

S&S Cycle has a long history of building top-tier engine components for performance motorcycles. This standard set of piston rings is designed for 1999 and newer Big Twin engines, featuring a 3-7/8 inch bore size. If you're rebuilding the top end of your engine, a fresh set of rings is crucial for proper cylinder sealing and compression.

These rings are moly-faced, meaning they have a coating of molybdenum. This compound is well-known in engine building for its ability to handle heat better, resist wear over time, and create a tighter seal against the cylinder wall. This translates to more consistent power delivery and better overall engine health.