ATHENA Crankshaft Bearing for KTM, HUSQVARNA, GAS GAS and HUSABERG 1998-2025

ATHENA offers this engine bearing for KTM, HUSQVARNA, GAS GAS and HUSABERG 1998-2025. The engine’s shafts run on ball or roller bearings in the cases. They carry heavy loads at high revs and eventually develop play.

What is this bearing made of?

Races and balls (or rollers) in hardened chrome steel, 100Cr6 type: a very hard steel that withstands the fatigue of millions of engine revolutions.

• Open bearing: unsealed, it is lubricated and cooled by the engine oil; clean oil is its best protection.
• C3 / C4 internal clearance: slightly more clearance than normal for a hot engine’s expansion; always refit the original clearance.
• Limit: it dislikes dust and old oil; running short of oil destroys it within minutes.

Why choose ATHENA?

Athena, founded in 1973 by Giovanni Mancassola near Vicenza and based in Alonte (Italy), designs gaskets, pistons and cylinder kits; it supplies original equipment to manufacturers such as KTM, Ducati, Fantic and Triumph.

When should you replace the bearings on your KTM SX 250?

On competition bikes the main bearings are replaced at every bottom-end rebuild, at the hours recommended by the manufacturer. With the cases open, spin each bearing by hand: the slightest rough spot means it must go.

Specifications and fitting tips

• Manufacturer part number: MR350720170J3K

Spare parts and items to plan

• Engine oil seals : PROX · INNTECK
• Complete engine gasket kit : PROX · INNTECK
• Gearbox bearings : HOT RODS TBK0019 · HOT RODS HR00088

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
GAS GAS EC 250 2025
GAS GAS EC 250 2024
GAS GAS EC 250 2023
GAS GAS EC 250 2022
GAS GAS EC 250 2021
GAS GAS EC 300 2025
GAS GAS EC 300 2024
GAS GAS EC 300 2023
GAS GAS EC 300 2022
GAS GAS EC 300 2021
GAS GAS MC 250 2025
GAS GAS MC 250 2024
GAS GAS MC 250 2023
GAS GAS MC 250 2022
HUSABERG TE 250 2014
HUSABERG TE 250 2013
HUSABERG TE 250 2012
HUSABERG TE 250 2011
HUSABERG TE 300 2014
HUSABERG TE 300 2013
HUSABERG TE 300 2012
HUSABERG TE 300 2011
HUSQVARNA TC 250 2024
HUSQVARNA TC 250 2023
HUSQVARNA TC 250 2022
HUSQVARNA TC 250 2021
HUSQVARNA TC 250 2020
HUSQVARNA TC 250 2019
HUSQVARNA TC 250 2018
HUSQVARNA TC 250 2017
HUSQVARNA TC 250 2016
HUSQVARNA TC 250 2015
HUSQVARNA TC 250 2014
HUSQVARNA TE 250 2024
HUSQVARNA TE 250 2023
HUSQVARNA TE 250 2022
HUSQVARNA TE 250 2021
HUSQVARNA TE 250 2020
HUSQVARNA TE 250 2019
HUSQVARNA TE 250 2018
HUSQVARNA TE 250 2017
HUSQVARNA TE 250 2016
HUSQVARNA TE 250 2015
HUSQVARNA TE 250 2014
HUSQVARNA TE 300 2024
HUSQVARNA TE 300 2023
HUSQVARNA TE 300 2022
HUSQVARNA TE 300 2021
HUSQVARNA TE 300 2020
HUSQVARNA TE 300 2019
HUSQVARNA TE 300 2018
HUSQVARNA TE 300 2017
HUSQVARNA TE 300 2016
HUSQVARNA TE 300 2015
HUSQVARNA TE 300 2014
HUSQVARNA TX 300 2018
HUSQVARNA TX 300 2017
KTM EXC 250 2024
KTM EXC 250 2023
KTM EXC 250 2022
KTM EXC 250 2021
KTM EXC 250 2020
KTM EXC 250 2019
KTM EXC 250 2018
KTM EXC 250 2017
KTM EXC 250 2016
KTM EXC 250 2015
KTM EXC 250 2014
KTM EXC 250 2013
KTM EXC 250 2012
KTM EXC 250 2011
KTM EXC 250 2010
KTM EXC 250 2009
KTM EXC 250 2008
KTM EXC 250 2007
KTM EXC 250 2006
KTM EXC 250 2005
KTM EXC 250 2004
KTM EXC 250 2003
KTM EXC 250 2002
KTM EXC 250 2001
KTM EXC 250 2000
KTM EXC 250 1999
KTM EXC 250 1998
KTM EXC 300 2024
KTM EXC 300 2023
KTM EXC 300 2022
KTM EXC 300 2021
KTM EXC 300 2020
KTM EXC 300 2019
KTM EXC 300 2018
KTM EXC 300 2017
KTM EXC 300 2016
KTM EXC 300 2015
KTM EXC 300 2014
KTM EXC 300 2013
KTM EXC 300 2012
KTM EXC 300 2011
KTM EXC 300 2010
KTM EXC 300 2009
KTM EXC 300 2008
KTM EXC 300 2007
KTM EXC 300 2006
KTM EXC 300 2005
KTM EXC 300 2004
KTM EXC 300 2003
KTM EXC 300 2002
KTM EXC 300 2001
KTM EXC 300 2000
KTM EXC 300 1999
KTM EXC 300 1998
KTM FREERIDE 250 2017
KTM FREERIDE 250 2016
KTM FREERIDE 250 2015
KTM FREERIDE 250 2014
KTM LC4 640 2007
KTM LC4 640 2006
KTM LC4 640 2005
KTM LC4 640 2004
KTM LC4 640 2003
KTM LC4 640 2002
KTM LC4 640 2001
KTM LC4 640 2000
KTM LC4 640 1999
KTM LC4 640 1998
KTM SX 250 2025
KTM SX 250 2024
KTM SX 250 2023
KTM SX 250 2022
KTM SX 250 2021
KTM SX 250 2020
KTM SX 250 2019
KTM SX 250 2018
KTM SX 250 2017
KTM SX 250 2016
KTM SX 250 2015
KTM SX 250 2014
KTM SX 250 2013
KTM SX 250 2012
KTM SX 250 2011
KTM SX 250 2010
KTM SX 250 2009
KTM SX 250 2008
KTM SX 250 2007
KTM SX 250 2006
KTM SX 250 2005
KTM SX 250 2004
KTM SX 250 2003
KTM SX 250 2002
KTM SX 250 2001
KTM SX 250 2000
KTM SX 250 1999
KTM SX 250 1998
KTM SXC 625 2007
KTM SXC 625 2006
KTM SXC 625 2005
KTM SXC 625 2004
KTM SXC 625 2003
KTM SXC 625 2002