ATHENA Piston Pin 19x10x51 mm for KAWASAKI KLX, KXF 450, HONDA CRF 450, YAMAHA WRF, YZF 426 and TM RACING ENF 450 2000-2017

The ATHENA 19x10x51 mm S41317005 piston pin is designed for YAMAHA WRF 426, YZF 426, KAWASAKI KLX 450, KXF 450, HONDA CRF 450 and TM RACING ENF 450 from 2000 to 2017. The piston pin connects the piston to the connecting rod and takes the full force of every combustion. It works in the small end and in the piston bosses: over the hours it wears or gets marked, and play appears.

Specifications

• Brand: ATHENA
• Manufacturer part number: S41317005
• EAN code: 8051757201563
• For ATHENA piston
• Weight: 10 g
• 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?

Athena, an Italian company founded in 1973 near Vicenza, designs gaskets, pistons and cylinder kits for motorcycles. An OEM supplier to KTM, Ducati, Fantic, Piaggio and Triumph and a partner of the MXGP world championship, it develops its parts on the test bench and on the track with racing teams.

Spare parts and items to plan

• Piston pin clips : WOSSNER · WISECO
• Top-end gasket kit : ATHENA S41025000622 · ATHENA R2506-072

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:
HONDA CRF 450 2008
HONDA CRF 450 2007
HONDA CRF 450 2006
HONDA CRF 450 2005
HONDA CRF 450 2004
HONDA CRF 450 2003
HONDA CRF 450 2002
KAWASAKI KLX 450 2017
KAWASAKI KLX 450 2016
KAWASAKI KLX 450 2015
KAWASAKI KLX 450 2014
KAWASAKI KLX 450 2013
KAWASAKI KLX 450 2012
KAWASAKI KLX 450 2011
KAWASAKI KLX 450 2010
KAWASAKI KLX 450 2009
KAWASAKI KLX 450 2008
KAWASAKI KXF 450 2008
KAWASAKI KXF 450 2007
KAWASAKI KXF 450 2006
KAWASAKI KXF 450 2005
TM RACING ENF 450 2004
YAMAHA WRF 426 2001
YAMAHA WRF 426 2000
YAMAHA YZF 426 2002
YAMAHA YZF 426 2001
YAMAHA YZF 426 2000