Wiseco
Wiseco Piston Kit Yamaha Road Star 4V Dome 10.5:1 Front
Part number: W4878M09500
€191.95
Sales price · excluding VAT and shipping
Not currently in supplier stockCatalogue updated: 6 Nov 2026, 08:21
Supplier stock; quantities are not reserved.Supplier stock is separate from stock physically held at Nick's Garage. Delivery to Cyprus and the final quotation are confirmed before ordering.
Technical specifications
- Bore - Standard
- 95.00 mm
- Piston Size
- 94.94 mm
- Compression Ratio - Actual
- 10.5:1
- Compression Ratio - Over Stock
- +2.2
- Total Height
- 60.10 mm
- Piston Pin Hole Diameter
- 22.00 mm
- Compression Height
- 17.40 mm
- Boss Spacing
- 25.10 mm
- Piston Head Type
- Flat with raised top
- Skirt Coating
- Armorglide Coating
- Additional Info
- Forged Piston
- Remark 1
- To be used in front cylinder !
- OEM Reference No
- 4WM-11631-01-00
- Country of Origin
- USA
- GTIN
- 00193564143501
- Piston Ring Part #
- W9500XY
- Piston Pin Part #
- WS655
- Circlip Part #
- WW5590
- Package Height
- 107,95 mm
- Package Length
- 124,46 mm
- Package Weight
- 317.51 g
- Package Width
- 124,46 mm
- Build Type
- Build on Demand