WSM Piston Kit - Polaris 300 - +.25 mm 50-310-04PK F.I. Agroid™ MIPS® Helmet Breathable mesh 3D liner with

Breathable mesh 3D liner with anti-sliding microfiber suede reinforcement on the heel area

Noise attenuating foam in the ear-pocket helps reduce noise

This 3/8 inch drive socket is made from 7075 Aluminum and is anodized black

2003 Kawasaki KLX 400 - - 2000-2007 Suzuki DR-Z 400 E - - 2000-2004 Suzuki DR-Z 400 - -

WSM Piston Kit - Polaris 300 - +.25 mm 50-310-04PK F.I. Agroid™ MIPS® Helmet Breathable mesh 3D liner withQuality and construction that meets or exceeds OEM Feature improved E clip design Contain piston, rings, pin and clips Additional rings available separately Order one per cylinder Skirts have a nonabrasive, expansion retarding MOS2 coating to reduce heat and friction for added power and longevity MOS2 coating actually draws heat through piston walls and out the bottom Specially hardened tops add strength to ring grooves