
Wiseco PK1071 Top-End Rebuild Kit for 2004-09 Yamaha YFZ 450 - 85mm
Wiseco Performance Top End Rebuild Kit
Part Number: PK1071
Piston Size: 95.00mm
- These kits contain everything you need to complete your rebuild the right way, 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 complete Top-End Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your rebuild the right way, 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 Super-cross, Motocross, GNCC, Super-bike, and more.
Fits: 2004-09 Yamaha YFZ 450
- Piston Standard Bore: 95.00mm
- Oversize Bore: STD
| Tire Diameter | |
| Speed Rating | |
| Load Rating | |
| Wall Construction | |
| Tire Tube Type | |
| Rim Size | |
| Product Line | Wiseco Top-End Rebuild Kit |
| Part Number | PK1071 |
| Fitment Type | |
| Unit Sale Qty | Each |
| Style | |
| Material | |
| Color | |
| Size | 85.00mm |
| 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 | 85.00mm |
| Piston Size Added | |
| Cylinder Stroke Volume | |
| Final Engine Displacement | |
| Exhaust Configuration | |
| Muffler Size | |
| Muffler End/Tip Style | |
| Windshield Height | |
| Windshield Width | |
| Handlebar Diameter | |
| Ca ARB Compliance | Non CARB Complaint CARB Compliant |
| Product Disclaimer |
(1) W6129 top end gasket kit
(1) 4865M09500 piston kit
2013 Yamaha YFZ450
2012 Yamaha YFZ450
2009 Yamaha YFZ450
2008 Yamaha YFZ450
2007 Yamaha YFZ450
2006 Yamaha YFZ450
2005 Yamaha YFZ450
2004 Yamaha YFZ450
2007 Yamaha YFZ450BB Bill Ballance Edition
2006 Yamaha YFZ450BB Bill Ballance Edition
2004 Yamaha YFZ450LE Limited Edition
2007 Yamaha YFZ450SE Special Edition
2005 Yamaha YFZ450SE Special Edition
2007 Yamaha YFZ450SE2 Special Edition 2
2006 Yamaha YFZ450SP 50th Anniversary Edition
2008 Yamaha YFZ450SP Special Edition
2008 Yamaha YFZ450SP2 Special Edition 2
Original: $261.00
-65%$261.00
$91.35Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Wiseco Performance Top End Rebuild Kit
Part Number: PK1071
Piston Size: 95.00mm
- These kits contain everything you need to complete your rebuild the right way, 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 complete Top-End Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your rebuild the right way, 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 Super-cross, Motocross, GNCC, Super-bike, and more.
Fits: 2004-09 Yamaha YFZ 450
- Piston Standard Bore: 95.00mm
- Oversize Bore: STD
| Tire Diameter | |
| Speed Rating | |
| Load Rating | |
| Wall Construction | |
| Tire Tube Type | |
| Rim Size | |
| Product Line | Wiseco Top-End Rebuild Kit |
| Part Number | PK1071 |
| Fitment Type | |
| Unit Sale Qty | Each |
| Style | |
| Material | |
| Color | |
| Size | 85.00mm |
| 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 | 85.00mm |
| Piston Size Added | |
| Cylinder Stroke Volume | |
| Final Engine Displacement | |
| Exhaust Configuration | |
| Muffler Size | |
| Muffler End/Tip Style | |
| Windshield Height | |
| Windshield Width | |
| Handlebar Diameter | |
| Ca ARB Compliance | Non CARB Complaint CARB Compliant |
| Product Disclaimer |
(1) W6129 top end gasket kit
(1) 4865M09500 piston kit
2013 Yamaha YFZ450
2012 Yamaha YFZ450
2009 Yamaha YFZ450
2008 Yamaha YFZ450
2007 Yamaha YFZ450
2006 Yamaha YFZ450
2005 Yamaha YFZ450
2004 Yamaha YFZ450
2007 Yamaha YFZ450BB Bill Ballance Edition
2006 Yamaha YFZ450BB Bill Ballance Edition
2004 Yamaha YFZ450LE Limited Edition
2007 Yamaha YFZ450SE Special Edition
2005 Yamaha YFZ450SE Special Edition
2007 Yamaha YFZ450SE2 Special Edition 2
2006 Yamaha YFZ450SP 50th Anniversary Edition
2008 Yamaha YFZ450SP Special Edition
2008 Yamaha YFZ450SP2 Special Edition 2



















