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Product description
The Wiseco Piston kit For Yamaha SS 440 1980-1985 Standard is part of the latest collection from Wiseco.
Features:
- All the necessary components for overboring or rebuilding your top end
- Kit includes forged pistons, rings, wrist pins, circlips and top end gasket set
- Cylinder sleeves must be purchased separately. Fits cast iron bore cylinders.
Specifications:
- Bore - Oversize Metric: Standard
- Bore - Oversize: Standard
- Bore Size: 66.00 mm
- Displacement: 437 cc
- Engine Type: 2-Stroke
- Model: Forged Series
- Piston Diameter Metric: 65.90 mm
- Piston Diameter: 65.90 mm
- Piston Material: 4032 Aluminum Alloy
- Product Name: Rebuild Kit
- Skirt Coating: Non-Coated
- Stroke Length: 64.00 mm
To fit:
- YAMAHA SS 440 1981 All Models
- YAMAHA SS 440 1982 All Models
- YAMAHA SS 440 1983 All Models
- YAMAHA SS 440 1984 All Models
- YAMAHA SS 440 1985 All Models
- YAMAHA SS 440 1980 All Models
Manufacturer part number: SK1127
View all Wiseco. View all Parts and spares.

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 Piston kit For Yamaha SS 440 1980-1985 Standard is part of the latest collection from Wiseco.
Features:
- All the necessary components for overboring or rebuilding your top end
- Kit includes forged pistons, rings, wrist pins, circlips and top end gasket set
- Cylinder sleeves must be purchased separately. Fits cast iron bore cylinders.
Specifications:
- Bore - Oversize Metric: Standard
- Bore - Oversize: Standard
- Bore Size: 66.00 mm
- Displacement: 437 cc
- Engine Type: 2-Stroke
- Model: Forged Series
- Piston Diameter Metric: 65.90 mm
- Piston Diameter: 65.90 mm
- Piston Material: 4032 Aluminum Alloy
- Product Name: Rebuild Kit
- Skirt Coating: Non-Coated
- Stroke Length: 64.00 mm
To fit:
- YAMAHA SS 440 1981 All Models
- YAMAHA SS 440 1982 All Models
- YAMAHA SS 440 1983 All Models
- YAMAHA SS 440 1984 All Models
- YAMAHA SS 440 1985 All Models
- YAMAHA SS 440 1980 All Models
Manufacturer part number: SK1127
View all Wiseco. View all Parts and spares.

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.































