Wossner Pro Series Piston Kit for 4-Stroke Engines

Upgrade your motorcycle's engine performance and reliability with the Wossner Pro Series 4-stroke piston kit. Engineered for demanding conditions, this premium forged aluminum piston kit delivers enhanced durability and optimal power output for your 4-stroke engine.

Description

The Wossner Pro Series piston kit is meticulously designed to elevate the performance and longevity of your 4-stroke engine. Crafted from high-strength forged aluminum alloy, this piston features enhanced piston pin oiling slots, radial boss machining, and annular grooves. This sophisticated lubrication system ensures superior wrist pin lubrication, significantly extending the lifespan of critical engine components under high stress. With a high compression ratio of 13.7:1, this piston is built to maximize power delivery.

Its lightweight design, combined with a precise 76.95 mm piston size for a 77.00 mm bore, allows for tighter piston wall clearances, resulting in a noticeably quieter running engine and reduced vibration. The advanced skirt coating dramatically reduces friction, promotes a smoother break-in period, and enhances overall performance throughout the engine's operational life. Furthermore, a specialized ring land treatment ensures an improved ring seal and superior oil control, maintaining consistent compression and minimizing oil consumption. Where applicable, a double-bridged forging design provides exceptional structural integrity, making this Wossner Pro Series piston kit an ideal choice for riders seeking uncompromising strength and reliability. The kit includes the piston, rings, wrist pin, and pin locks for a complete installation.

Features & Highlights

• Optimized Lubrication System: Enhanced piston pin oiling slots, radial boss machining, and annular grooves provide superior wrist pin lubrication, extending component life.
• Quiet & Efficient Operation: Lightweight piston design with tight wall clearances ensures a quieter running engine and reduced operational noise.
• Reduced Friction & Improved Break-in: Specially applied skirt coating minimizes friction, leading to improved break-in performance and enhanced durability.
• Superior Ring Seal & Oil Control: Advanced ring land treatment promotes a better ring seal, ensuring consistent compression and effective oil management.
• Exceptional Strength: Features a double-bridged forging design (where noted) for outstanding structural integrity and resistance to extreme engine pressures.
• Complete Kit: Includes the forged aluminum piston, high-quality rings, a durable wrist pin, and secure pin locks for a comprehensive replacement.

Technical Specifications

• Model: Pro Series
• Engine Type: 4-Stroke
• Piston Material: Forged Aluminum Alloy
• Compression Ratio: 13.7:1
• Bore Size: 77.00 mm
• Piston Size: 76.95 mm
• Stroke Length: 53.60 mm
• Bore - Oversize: Standard
• Units: Kit
• Style: Standard Size A
• Vendor Part Number: 8942DA

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