Complete Engines & Rebuild Kits

Prox Gasket Kit - Complete - Kawasaki 34.4419 Kawasaki -- KX 450 F -- (2014, 2015, 2012, 2009, 2013, 2010, 2011)

PISTON KIT W/GASKETSHIGH-PERFORMANCE PISTONSForged from high-silicon aluminum alloy for maximum strength and dependabilityWiseco offers a complete range of popular piston models and years for both trail and racing applicationsWISECO FEATURES PRO-LITE...

• Includes all necessary top-quality gaskets, rubber parts and valve stem seals to rebuild top-end and complete engines, respectively - Honda CRF250R (2022, 2025, 2023, 2024); Honda CRF250RX (2023, 2022, 2025, 2024)

Prox Gasket Kit - Complete - Yamaha 34.2426 Yamaha -- YZ 450 F -- (2007, 2008, 2009, 2006); Yamaha -- WR 450 F -- (2010, 2009, 2011, 2012, 2013, 2007, 2008, 2015, 2014)

• Includes all necessary top-quality gaskets, rubber parts and valve stem seals to rebuild top-end and complete engines, respectively - Suzuki RMX 450 Z (2016, 2010, 2012, 2011, 2014, 2015, 2019, 2013, 2017, 2018)

PISTON KIT W/GASKETHIGH-PERFORMANCE PISTONSForged from high-silicon aluminum alloy for maximum strength and dependabilityWiseco offers a complete range of popular piston models and years for both trail and racing applicationsWISECO FEATURES PRO-LITE...

PISTON KIT W/GASKETSHIGH-PERFORMANCE PISTONSForged from high-silicon aluminum alloy for maximum strength and dependabilityWiseco offers a complete range of popular piston models and years for both trail and racing applicationsWISECO FEATURES PRO-LITE...

PISTON KIT W/GASKETSHIGH-PERFORMANCE PISTONSForged from high-silicon aluminum alloy for maximum strength and dependabilityWiseco offers a complete range of popular piston models and years for both trail and racing applicationsWISECO FEATURES PRO-LITE...

PISTON KIT W/GASK KAWHIGH-PERFORMANCE PISTONSForged from high-silicon aluminum alloy for maximum strength and dependabilityWiseco offers a complete range of popular piston models and years for both trail and racing applicationsWISECO FEATURES PRO-LITE...

• Includes all necessary top-quality gaskets, rubber parts and valve stem seals to rebuild top-end and complete engines, respectively - Suzuki RM-Z 250 (2022, 2023, 2025, 2020, 2019, 2021, 2024)

Prox Gasket Kit - Complete - Honda 34.1494 Honda -- TRX450R Sportrax -- (2005, 2004); Honda -- TRX450R -- (2004)

Prox Gasket Kit - Complete - Suzuki 34.3409 Suzuki -- RM-Z 450 -- (2008, 2014, 2015, 2013, 2009, 2010, 2011, 2012, 2016, 2018, 2019, 2020, 2017, 2022, 2023, 2025, 2021, 2024)