ATHENA Cylinder Base Gasket for KTM, HUSQVARNA and HUSABERG 2003-2017

ATHENA offers this cylinder base gasket for KTM, HUSQVARNA and HUSABERG 2003-2017. The base gasket sits under the cylinder, on the crankcase. Crushed when tightened, it cannot be reused: replace it every time the cylinder comes off.

Why does the thickness matter?

The benefits:

• The OE thickness keeps the cylinder height intended by the manufacturer.
• Another thickness lets you correct piston-to-head clearance after machining or adjust the port timing of a 2-stroke.
• A new gasket keeps the bottom end sealed against oil and gases.

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 base gasket on your KTM SX 250?

Every time the cylinder comes off: piston change, top-end rebuild or cylinder inspection. Oil or mixture seeping at the base of the cylinder also points to a tired gasket.

No manufacturer figure in hours for this model. Cross-Mania guideline: compression check every 20 h of hard use and every 40 h of leisure riding.

Specifications and fitting tips

• Manufacturer part numbers: S410270006062 (0.20 mm), S410270006063 (0.40 mm), S410270006064 (0.50 mm), S410270006065 (0.80 mm)

Choose the thickness from the list. "OE" is the factory thickness; another thickness is used to set the cylinder height after a rebuild (piston-to-head clearance, port timing on a 2-stroke).

Cross-Mania tip: Choose the OE thickness if the cylinder and head have not been machined; if in doubt, measure the squish with solder wire before final assembly.

Spare parts and items to plan

• Top-end gasket kit : ATHENA M752007300094 · ATHENA M752007800094
• Piston : PROX · WOSSNER
• Piston rings : ATHENA · VERTEX
• Coolant : LIQUI MOLY 1 L · TWIN AIR

Compatibility

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

Fits:
HUSABERG TE 250 2012
HUSABERG TE 250 2011
HUSABERG TE 300 2012
HUSABERG TE 300 2011
HUSQVARNA TC 250 2016
HUSQVARNA TC 250 2015
HUSQVARNA TC 250 2014
HUSQVARNA TE 250 2016
HUSQVARNA TE 250 2015
HUSQVARNA TE 250 2014
HUSQVARNA TE 300 2016
HUSQVARNA TE 300 2015
HUSQVARNA TE 300 2014
KTM EXC 250 2016
KTM EXC 250 2013
KTM EXC 300 2015
KTM EXC 300 2014
KTM EXC 300 2013
KTM FREERIDE 250 2017
KTM FREERIDE 250 2016
KTM FREERIDE 250 2015
KTM FREERIDE 250 2014
KTM MXC 300 2012
KTM MXC 300 2011
KTM MXC 300 2010
KTM MXC 300 2009
KTM MXC 300 2008
KTM MXC 300 2007
KTM MXC 300 2006
KTM MXC 300 2005
KTM MXC 300 2004
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 XC 250 2016
KTM XC 250 2015
KTM XC 250 2014
KTM XC 250 2013
KTM XC 250 2012
KTM XC 250 2011
KTM XC 250 2010
KTM XC 250 2009
KTM XC 250 2008
KTM XC 250 2007
KTM XC 250 2006
KTM XC 300 2016
KTM XC 300 2014
KTM XC 300 2013
KTM XC 300 2012
KTM XC 300 2011
KTM XC 300 2010
KTM XC 300 2009
KTM XC 300 2008
KTM XC 300 2007
KTM XC 300 2006
KTM XCW 250 2015
KTM XCW 250 2014
KTM XCW 250 2013
KTM XCW 250 2012
KTM XCW 250 2011
KTM XCW 250 2010
KTM XCW 250 2009
KTM XCW 250 2008
KTM XCW 300 2016
KTM XCW 300 2015
KTM XCW 300 2014
KTM XCW 300 2013
KTM XCW 300 2012
KTM XCW 300 2011
KTM XCW 300 2010
KTM XCW 300 2009
KTM XCW 300 2008
KTM XCW 300 2007
KTM XCW 300 2006