Cylinder Block Assembly for Hisun 800Cc Hs800Atv Utv, Cylinder Block 1 P0100001211A0100 & Cylinder Block 2 P0100001211A0200.Compatible with Hisun HS800 ATV/UTV.This assembly includes two cylinder blocks designed as direct replacements for the.Fits Hisun 800cc models requiring part numbers P0100001211A0100 and P0100001211A0200.Important: This is an independent aftermarket part.Brand/model references serve only to show compatibility.