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Tire Diameter
Speed Rating
Load Rating
Wall Construction
Tire Tube Type
Rim Size
Product LineWiseco Piston Kit
Part Number232M08650
Fitment Type
Unit Sale QtyEach
StyleBig Bore Piston Kit
Material
Color
Size86.50mm
Finish
Position
Functional Length
Cable Sleeve Length
Cable Sleeve Travel
Driver Seat Length
Passenger Seat Length
Driver Seat Width
Passenger Seat Width
Piston/Cylinder Size86.50mm
Piston Size Added1.50mm
Cylinder Stroke Volume70.00mm
Final Engine Displacement404cc
Exhaust Configuration
Muffler Size
Muffler End/Tip Style
Windshield Height
Windshield Width
Handlebar Diameter
Ca ARB Compliance\r\n Non CARB Complaint\r\n CARB Compliant\r\n
Product Disclaimer
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1978 Yamaha DT400
\n1977 Yamaha DT400
\n1976 Yamaha DT400
\n1975 Yamaha DT400
\n1975 Yamaha MX400

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Wiseco Piston Kit for 1975-78 Yamaha DT400 - Bored to 86.50mm - 232M08650

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Wiseco Piston Kit for 1975-78 Yamaha DT400 - Bored to 86.50mm - 232M08650

Wiseco Performance Big Bore Piston Kit

Part Number: 232M08650 

  • These kits contain everything you need to complete your piston repair, the first time
  • High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power.
  • Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy.
  • All Piston Kits are precision crafted and forged in the USA

Wiseco's Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your piston repair, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. 2-stroke kits feature our Pro-Lite pistons that are CNC machined for optimal cam shape and profile for peak HP and service life. 4-stroke kits feature a race-ready dome finish with smooth edges for improved combustion flow. Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal. 4-stroke race applications feature Wiseco's Armor Glide skirt coating to provide reduced friction and noise to contribute to increased horsepower. Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross, Motocross, GNCC, Super-bike, and more.

  • Displacement: 404cc
  • Bore-Standard: 85.00mm
  • Bore-Actual: 86.50mm
  • Bore-Oversize: 1.50mm
  • Stroke: 70.00mm
Tire Diameter
Speed Rating
Load Rating
Wall Construction
Tire Tube Type
Rim Size
Product Line Wiseco Piston Kit
Part Number 232M08650
Fitment Type
Unit Sale Qty Each
Style Big Bore Piston Kit
Material
Color
Size 86.50mm
Finish
Position
Functional Length
Cable Sleeve Length
Cable Sleeve Travel
Driver Seat Length
Passenger Seat Length
Driver Seat Width
Passenger Seat Width
Piston/Cylinder Size 86.50mm
Piston Size Added 1.50mm
Cylinder Stroke Volume 70.00mm
Final Engine Displacement 404cc
Exhaust Configuration
Muffler Size
Muffler End/Tip Style
Windshield Height
Windshield Width
Handlebar Diameter
Ca ARB Compliance Non CARB Complaint CARB Compliant
Product Disclaimer

1978 Yamaha DT400
1977 Yamaha DT400
1976 Yamaha DT400
1975 Yamaha DT400
1975 Yamaha MX400

$58.45

Original: $167.00

-65%
Wiseco Piston Kit for 1975-78 Yamaha DT400 - Bored to 86.50mm - 232M08650—

$167.00

$58.45

Product Information

Shipping & Returns

Description

Wiseco Performance Big Bore Piston Kit

Part Number: 232M08650 

  • These kits contain everything you need to complete your piston repair, the first time
  • High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power.
  • Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy.
  • All Piston Kits are precision crafted and forged in the USA

Wiseco's Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your piston repair, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. 2-stroke kits feature our Pro-Lite pistons that are CNC machined for optimal cam shape and profile for peak HP and service life. 4-stroke kits feature a race-ready dome finish with smooth edges for improved combustion flow. Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal. 4-stroke race applications feature Wiseco's Armor Glide skirt coating to provide reduced friction and noise to contribute to increased horsepower. Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross, Motocross, GNCC, Super-bike, and more.

  • Displacement: 404cc
  • Bore-Standard: 85.00mm
  • Bore-Actual: 86.50mm
  • Bore-Oversize: 1.50mm
  • Stroke: 70.00mm
Tire Diameter
Speed Rating
Load Rating
Wall Construction
Tire Tube Type
Rim Size
Product Line Wiseco Piston Kit
Part Number 232M08650
Fitment Type
Unit Sale Qty Each
Style Big Bore Piston Kit
Material
Color
Size 86.50mm
Finish
Position
Functional Length
Cable Sleeve Length
Cable Sleeve Travel
Driver Seat Length
Passenger Seat Length
Driver Seat Width
Passenger Seat Width
Piston/Cylinder Size 86.50mm
Piston Size Added 1.50mm
Cylinder Stroke Volume 70.00mm
Final Engine Displacement 404cc
Exhaust Configuration
Muffler Size
Muffler End/Tip Style
Windshield Height
Windshield Width
Handlebar Diameter
Ca ARB Compliance Non CARB Complaint CARB Compliant
Product Disclaimer

1978 Yamaha DT400
1977 Yamaha DT400
1976 Yamaha DT400
1975 Yamaha DT400
1975 Yamaha MX400

Wiseco Piston Kit for 1975-78 Yamaha DT400 - Bored to 86.50mm - 232M08650 | SVS PowerSports