Piston Kit 76.00 CR 9.5:1 YFM250RX 08-13, XT250 13-19, Wiseco 40078M07600 Yamaha ATV

Piston Kit 76.00 CR 9.5:1 YFM250RX 08-13, XT250 13-19, Wiseco 40078M07600 Yamaha ATV. Find the product specifications and compatibility information below.

Product details

• Product: Piston Kit 76.00 CR 9.5:1 YFM250RX 08-13, XT250 13-19, Wiseco 40078M07600 Yamaha ATV
• Part number: 56-W4951.7600.WI
• Brand: Wiseco
• This Wiseco forged piston kit is designed for Yamaha YFM250RX (2008–2013) and XT250 (2013–2019) models. It features a 2.00mm oversize bore, bringing the actual bore to 76.00mm and increasing displacement to 263cc. Engineered for durability and performance, it includes a moly-coated skirt for reduced friction and improved wear resistance. The kit is suitable for high-performance applications, offering enhanced strength and fatigue resistance compared to cast pistons.
• Forged piston construction for enhanced strength and durability
• Moly-coated piston skirt to reduce friction and improve wear resistance
• Direct OEM replacement
• Easy to install; professional installation recommended if unsure
• Displacement: 263cc
• Bore (Standard): 74.00mm
• Bore (Actual): 76.00mm
• Oversize: 2.00mm
• Stroke: 58.00mm
• Compression Ratio (Actual): 9.5:1
• Skirt Coating: Moly
• Cross-Reference OEM Part Numbers
• 40078M07600
• 2992XG (76.00mm Ring Set)
• CW17 (17mm Round Wire Locks – Set of Two)
• S688 (Piston Pin 17 x 42mm Non-Chromed TW)
• Vehicle Fitments
• YFM250RX (2008–2013)
• XT250 (2013–2019)

Compatibility

No separate vehicle-fitment table record was supplied for this part. Check any application details, sizes and specifications above before ordering.

Why buy from FDY Performance?

FDY Performance is a UK motorcycle and ATV parts specialist. We help riders find parts with clear specifications, vehicle fitment information where available and support before ordering.

Need help choosing the right part?

Contact us with your bike make, model and year, plus the part number shown above, and we can help you check compatibility.

• Call: 07765 534854
• Email: fdy@fdyperformance.com
• Website: www.fdyperformance.com