Vertex forged replica piston kit 24371b for yamaha yz 250 f 19

Specs: description: forged replica piston kit, compression ratio: 13.8:1, cylinder bore: 77.000, piston diam: 76.960, displacement: 250.00, notes: forged replica piston kit. includes (piston, ring set, wrist pin, & circlips). compatible with/replacement for yamaha wr 250 f 2020, yz 250 f 2019-2020, yz 250 fx 2020 1-year warranty protects you after your purchase. we're confident that our products will work flawlessly once installed in your vehicle. but in a rare case that it does not, we'll replace it anytime within one year of your order. if you have a problem, we will take every step to assist you, contact us for a replacement. 100% new aftermarket forged replica piston kit built to meet oem specifications for yamaha replica is a stock compression oe replacement piston