WISECO 8650XX Piston Rings for 3.406-Inch Bore, 1.0 x 1.2 x 2.8 mm, Standard Tension

WISECO 8650XX piston rings are designed for applications using a 3.406-inch bore and provide a dependable replacement solution for performance and powersports engines. This drop-in ring set is engineered for single-cylinder applications and includes the ring configuration needed to support proper combustion sealing, oil control, and efficient engine operation. The standard-tension design helps balance sealing performance with reduced drag for consistent operation.
Manufactured from steel and finished with a gas-nitrided surface, these WISECO piston rings are built to withstand demanding cylinder conditions and repeated thermal cycling. The gas-nitriding treatment improves surface hardness and wear resistance, helping maintain ring performance over time when paired with a properly prepared cylinder and compatible piston. The 1.0 x 1.2 x 2.8 mm ring profile is suited to applications requiring a precise, compact ring package.
The WISECO 8650XX set is supplied for one cylinder and is intended as a drop-in replacement when the application specifications match. Always verify bore size, piston compatibility, groove dimensions, ring end gap, and installation orientation before assembly. Proper fitting and break-in procedures are essential for achieving reliable compression, oil control, and service life. This piston ring set is a practical choice for engine builders, technicians, and enthusiasts seeking trusted WISECO replacement components.

Features:

• Brand: WISECO

• Part Number: 8650XX

• Application: 3.406-inch bore

• Design: Drop-in piston ring set

• Ring Profile: 1.0 x 1.2 x 2.8 mm

• Tension: Standard tension

• Material: Steel

• Surface Treatment: Gas nitride

• Cylinder Coverage: Single cylinder

• Quantity: Sold as a set for one cylinder