NICHE 348cc Engine Piston Cylinder Top End Kit for Yamaha Big Bear Moto-4 Raptor Warrior 350 1UY-11310-03 93450-19095-00

My 1988 warrior finally needed a top end. Bought this kit and it has been doing great. Good quality as well.

I used this kit on an 88 Yamaha Moto four every part measure good work perfectly they need to give you a full top and gasket kit make sure all your parts are clean as they come with chips from the machining process otherwise it seems to be a good value

exact fitment easy install

Product was great went together perfectly no smoking easy staring and great power niche has come along way compared to the other Chinese brands

I used it for a 2001 Yamaha warrior 350 restored power now I'm getting full power of the quad and a great fit for the head and engine

this is nice ,you need a o-ring for the jug and you also need to remove the copper pin on the head gasket so the head will go down flush.there two these one them will be inside the jug and head and will not let it seal right all you have to do is look and see the one that's out side and remove it.

Works perfect for my warrior rebuild

Received product and installed.

Very impressed. Came with everything needed to swap on. Rings were gapped already in factory spec.

I used this on a 2014 Bruin 350, fit perfectly and work’s excellent

Perfect fit and quality.

Works good