ATHENA offers this replacement gasket pack for the ATHENA aluminum P400485100050 big bore 280cc kit mounted on YAMAHA YZF, YZ-F 250cc 4 stroke motocross from 2014 to 2017 and YAMAHA WR-F, WRF 250cc 4 stroke from 2015 to 2017. This gasket pack includes the base gasket, the reinforced head gasket as well as the timing chain and exhaust tensioner gasket in copper. This top engine gasket pack is for the ATHENA 81mm kit.

Fits on:

YAMAHA YZF 2014

YAMAHA YZF 2015

YAMAHA YZF 2016

YAMAHA YZF 2017

YAMAHA WRF 2015

YAMAHA WRF 2016

YAMAHA WRF 2017