JE Pistons 172945 Forged Piston Kit 84mm Bore 12.8:1 Compression

The JE Pistons 172945 is a high-performance forged piston and ring kit designed for powersports applications. This complete kit features a single piston machined from premium 2618-T6 high tensile forged aluminum alloy, providing exceptional strength and durability under extreme operating conditions.

Key Features:

• 84mm bore size (+3mm oversize)
• 12.8:1 compression ratio for increased power output
• Round skirt style design
• Forged from 2618-T6 aluminum alloy for superior high-temperature strength
• Smooth flowing dome radii requiring no deburring or preparation
• Floating wrist pin style with retainers included
• Premium cast iron top ring with gas nitrided facing
• Ductile iron second ring with phosphate coating
• Stainless steel oil ring for enhanced durability
• Napier-style top compression ring design
• Approximate piston weight: 244 grams

JE Pistons utilizes advanced manufacturing techniques including specialized elliptical machining to ensure optimal piston-to-cylinder clearances and performance. The high-tech ring compounds provide superior temperature resistance, reduced wear, improved sealing, and minimized flaking. Engineered specifically for extreme applications including professional competition, this complete kit includes the piston, piston rings, wrist pin, and retaining clips.