Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 61A-11635-00 0.25 Viewer:1398 OEM No. : 61A-11635-00-0.25 For YAMAHA Outboard 250 HP You May Also Be Interested In Piston Kit 6L1-11635-01 0.25 Piston Kit 6L1-11631-11 STD Bearing 338-00042-0/338000420M Gear 6J9-45560-00-00(28T)