ATHENA Piston Pin 20x12x46 mm for SUZUKI DRZ 400, KAWASAKI KLX 400 and KTM EXC 250 2000-2025

On KTM EXC 250, KAWASAKI KLX 400 and SUZUKI DRZ 400 from 2000 to 2025, the ATHENA 20x12x46 mm S41317011 piston pin fits in place of the original part. Small but heavily loaded, the pin transmits the piston's thrust to the connecting rod. A marked or oval pin creates play and noise, and wears the small end.

Specifications

• Brand: ATHENA
• Manufacturer part number: S41317011
• EAN code: 8051757169436
• For ATHENA piston
• Engine: 4-stroke

When to replace it?

• Metallic knocking at idle or when closing the throttle.
• Pin marked, blued or scored on teardown.
• Noticeable play between the pin and the small end or the piston bosses.

Check the pin at every piston change and replace it as soon as it is marked, blued or has play. A new pin always goes in with new circlips.

Fitting tips

1. Check that the pin diameter and length match your piston (see specifications).
2. Oil the pin, the small end and the piston bosses, then push the pin in by hand, without forcing it.
3. Fit new piston pin circlips, gap opposite the notch, and check they sit properly in their groove.

Why ATHENA?

Founded in 1973 near Vicenza, Athena is an Italian engine gasket specialist that has made its gaskets on its own production lines since day one, as well as a renowned manufacturer of pistons and cylinder kits. The brand supplies original equipment to manufacturers such as KTM, Ducati, Fantic, Piaggio and Triumph, and is a partner of the MXGP motocross world championship.

Spare parts and items to plan

• Piston pin clips : WOSSNER CW18 · WOSSNER CW20
• Top-end gasket kit : see the selection

Frequently asked questions

Is the pin supplied with the piston?
Yes, a new piston comes with its pin. This part is for replacing a worn or lost pin, or for completing a piston sold on its own.

Are the circlips included?
No: plan for new piston pin circlips, as they are never reused.

Compatibility

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

Fits:
KAWASAKI KLX 400 2025
KAWASAKI KLX 400 2024
KAWASAKI KLX 400 2023
KAWASAKI KLX 400 2022
KAWASAKI KLX 400 2021
KAWASAKI KLX 400 2020
KAWASAKI KLX 400 2019
KAWASAKI KLX 400 2018
KAWASAKI KLX 400 2017
KAWASAKI KLX 400 2016
KAWASAKI KLX 400 2015
KAWASAKI KLX 400 2014
KAWASAKI KLX 400 2013
KAWASAKI KLX 400 2012
KAWASAKI KLX 400 2011
KAWASAKI KLX 400 2010
KAWASAKI KLX 400 2009
KAWASAKI KLX 400 2008
KTM EXC 250 2005
KTM EXC 250 2004
KTM EXC 250 2003
KTM EXC 250 2002
KTM EXC 250 2001
SUZUKI DRZ 400 2019
SUZUKI DRZ 400 2017
SUZUKI DRZ 400 2016
SUZUKI DRZ 400 2015
SUZUKI DRZ 400 2014
SUZUKI DRZ 400 2013
SUZUKI DRZ 400 2012
SUZUKI DRZ 400 2011
SUZUKI DRZ 400 2010
SUZUKI DRZ 400 2009
SUZUKI DRZ 400 2008
SUZUKI DRZ 400 2007
SUZUKI DRZ 400 2006
SUZUKI DRZ 400 2005
SUZUKI DRZ 400 2004
SUZUKI DRZ 400 2003
SUZUKI DRZ 400 2002
SUZUKI DRZ 400 2001
SUZUKI DRZ 400 2000