Top End

Gravity cast aluminum alloy with 18% silicon to increase resistance to wear and decrease thermal distortion, thus providing a longer piston lifeCoated skirts ease break-in, decreasing wear and aiding in lubricationWear-resistant piston ringsWrist pins...

• Most Wiseco 2-stroke pistons are forged from high-silicone bar stock • Greater strength and lower expansion at high temperatures • All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips • Wiseco ring types are not...

• Most Wiseco 2-stroke pistons are forged from high-silicone bar stock • Greater strength and lower expansion at high temperatures • All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips • Wiseco ring types are not...

WISECO PISTON YAM 2.0MMHIGH-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...

• Most Wiseco 2-stroke pistons are forged from high-silicone bar stock • Greater strength and lower expansion at high temperatures • All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips • Wiseco ring types are not...

Piston Kit - 44.97 Mm - Gas Gas Mc65 | Husqvarna Tc65 | Ktm 65 Sx/Sxs/Xc 23430Cd KTM -- 65 SX -- (2010, 2011, 2009, 2021, 2020, 2023, 2022, 2024, 2016, 2017, 2018, 2019, 2012, 2013, 2015, 2014); KTM -- 65 XC -- (2009); KTM -- 65 SXS -- (2014, 2013);...

Prox Top End Gasket Set - Honda 35.1421 Honda -- CRF450R -- (2021, 2022); Honda -- CRF450RX -- (2021, 2022)

Prox Top End Gasket Kit - Polaris 800 35.5817 Polaris -- Rush 800 Pro-S 1.25" w/120" Track -- (2017, 2018, 2019)

Prox Top End Gasket Set - Honda Crf450R 35.1402 Honda -- CRF450R -- (2003, 2002, 2004, 2006, 2005)

Prox Top End Gasket Set - Kawasaki Kx 450 F 35.4419 Kawasaki -- KX 450 F -- (2010, 2009, 2013, 2012, 2015, 2014, 2011)

Prox Top End Gasket Set - Honda 35.1423 Honda -- CRF450RX -- (2023, 2024, 2025); Honda -- CRF450R -- (2023, 2024, 2025)

Prox Top End Gasket Set - Honda 35.1352 Honda -- CRF250R -- (2022, 2023, 2024, 2025); Honda -- CRF250RX -- (2022, 2023, 2024, 2025)