Restore crisp power and dependable compression with the PROX 4-stroke piston kit, designed for precise fitment and long service life. Manufactured with modern CNC machining, this kit helps you refresh your top end with confidence and get your engine back to smooth, consistent performance.
When a 4-stroke starts losing compression, using oil, or feeling tired under load, a quality piston kit is the straightforward fix. This PROX kit includes the key components needed for a proper rebuild, helping reduce friction and maintain stable clearances thanks to its low-expansion aluminum alloy.
Key features:
✅ Kit includes piston, rings, wrist pin and circlips
✅ Precision machined on state-of-the-art CNC equipment
✅ Made with low expansion, low friction alloy
Benefits of use:
🔹 Helps restore compression and throttle response in worn engines
🔹 Reliable fit and consistent tolerances for trouble-free assembly
🔹 Great choice for maintenance-focused top-end rebuilds on 4-stroke engines
Technical specifications:
📌 Brand: PROX
📌 Vendor part number: 01.4406.A
📌 Engine type: 4-Stroke
📌 Displacement: 450 cc
📌 Bore size: 96.00 mm
📌 Piston size: 95.97 mm
📌 Compression ratio: 12.0:1
📌 Material: Aluminum alloy
📌 Type: Standard Size A
📌 Units: Kit
📌 Skirt coating: Non-coated
Why choose this product?
⭐ Proven PROX manufacturing quality for engine rebuild parts
⭐ Complete kit format simplifies ordering the correct rebuild components
⭐ Ideal for planned maintenance and performance consistency between service intervals
