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Product description
The Wiseco Forged Piston Kit For Yamaha YZF250 2001-2004 Standard is part of the latest collection from Wiseco.
Features:
- Forged 4-stroke piston is designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength
- Dedicated forgings allow for optimized strength-to-weight ratio
- Ideal for multiple purpose riding
- Kit includes piston, wrist pin, rings and circlips Light weight piston that is gas ported. Kit Includes: • 1x Piston • 1x Ring Set #7700YC • 1x Wrist Pin #S742 • 1x Circlip Set #CW16
Specifications:
- Bore - Oversize Metric: Standard
- Bore - Oversize: Standard
- Bore Size: 77.00 mm
- Compression Ratio Imperial: 13.5
- Compression Ratio: 13.5
- Displacement: 249 cc
- Engine Type: 4-Stroke
- Model: Forged Series
- Piston Diameter Metric: 76.95 mm
- Piston Diameter: 76.95 mm
- Piston Material: Forged 2618 Aluminum
- Product Name: Piston Kit
To fit:
- YAMAHA YZ 250 F 2001 European Models
- YAMAHA YZ 250 F 2002 American Models
- YAMAHA YZ 250 F 2002 European Models
- YAMAHA YZ 250 F 2003 American Models
- YAMAHA YZ 250 F 2003 European Models
- YAMAHA YZ 250 F 2004 American Models
- YAMAHA YZ 250 F 2004 European Models
- YAMAHA YZ 250 F 2001 American Models
Manufacturer part number: 4858M07700
View all Wiseco. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Wiseco Forged Piston Kit For Yamaha YZF250 2001-2004 Standard
To fit:
- YAMAHA YZ 250 F 2001 American Models
- YAMAHA YZ 250 F 2001 European Models
- YAMAHA YZ 250 F 2002 American Models
- YAMAHA YZ 250 F 2002 European Models
- YAMAHA YZ 250 F 2003 American Models
- YAMAHA YZ 250 F 2003 European Models
- YAMAHA YZ 250 F 2004 American Models
- YAMAHA YZ 250 F 2004 European Models

Wiseco is a renowned brand in motocross and enduro, specializing in high-performance parts. Their pistons, crankshafts, and engine parts are trusted by riders worldwide for durability and power enhancement. With a history of engineering excellence, Wiseco continues to provide top-notch products that push the limits of off-road motorcycle racing.
Product description
The Wiseco Forged Piston Kit For Yamaha YZF250 2001-2004 Standard is part of the latest collection from Wiseco.
Features:
- Forged 4-stroke piston is designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength
- Dedicated forgings allow for optimized strength-to-weight ratio
- Ideal for multiple purpose riding
- Kit includes piston, wrist pin, rings and circlips Light weight piston that is gas ported. Kit Includes: • 1x Piston • 1x Ring Set #7700YC • 1x Wrist Pin #S742 • 1x Circlip Set #CW16
Specifications:
- Bore - Oversize Metric: Standard
- Bore - Oversize: Standard
- Bore Size: 77.00 mm
- Compression Ratio Imperial: 13.5
- Compression Ratio: 13.5
- Displacement: 249 cc
- Engine Type: 4-Stroke
- Model: Forged Series
- Piston Diameter Metric: 76.95 mm
- Piston Diameter: 76.95 mm
- Piston Material: Forged 2618 Aluminum
- Product Name: Piston Kit
To fit:
- YAMAHA YZ 250 F 2001 European Models
- YAMAHA YZ 250 F 2002 American Models
- YAMAHA YZ 250 F 2002 European Models
- YAMAHA YZ 250 F 2003 American Models
- YAMAHA YZ 250 F 2003 European Models
- YAMAHA YZ 250 F 2004 American Models
- YAMAHA YZ 250 F 2004 European Models
- YAMAHA YZ 250 F 2001 American Models
Manufacturer part number: 4858M07700
View all Wiseco. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Wiseco Forged Piston Kit For Yamaha YZF250 2001-2004 Standard
To fit:
- YAMAHA YZ 250 F 2001 American Models
- YAMAHA YZ 250 F 2001 European Models
- YAMAHA YZ 250 F 2002 American Models
- YAMAHA YZ 250 F 2002 European Models
- YAMAHA YZ 250 F 2003 American Models
- YAMAHA YZ 250 F 2003 European Models
- YAMAHA YZ 250 F 2004 American Models
- YAMAHA YZ 250 F 2004 European Models

Wiseco is a renowned brand in motocross and enduro, specializing in high-performance parts. Their pistons, crankshafts, and engine parts are trusted by riders worldwide for durability and power enhancement. With a history of engineering excellence, Wiseco continues to provide top-notch products that push the limits of off-road motorcycle racing.































