Honda ATC200S XL185S ATC185S ATC200M ATC200ES XR185 Cylinder 12100-427-010 Fits 1979-02 185-200cc
Listing Includes 1 Cylinder with 63mm Piston Cylinder Base Gasket, Head Gasket.
"Engine not for sale shown as reference photos only" Piston is China Quality worth about $10 , it would be worth mentioning upgrading to a better piston is recommended, regardless this piston and cylinder combo have been personally tested by myself, both items work as intended , life span of piston is estimated at 1/3 rd of OEM lifespan. Head Gasket Is low quality and too thick its recommended to use a Better Gasket Kit Than whats included. Produces 130 psi or better with parts included ( Test Completed With Rotating Crank With Ratchet a.k.a faily slow ) . Use proper headgasket and you will be up around the 150 psi or better 
New Aftermarket Cylinder 63mm Bore " 180cc " , Replaces OEM Cylinder for 2 Valve Hondas 1979-2002 185-200cc 
" Can be used on " 200cc models as well. 
 
FITMENT-

12100-427-010 

Honda Motorcycle 1980 XL185S A CYLINDER

Honda ATV 1982 ATC185S A CYLINDER

Honda ATV 1981 ATC185S A CYLINDER

Honda Motorcycle 1982 XL185S A CYLINDER

Honda ATV 1980 ATC185 A CYLINDER

Honda Motorcycle 1981 XL185S A CYLINDER

Honda Motorcycle 1979 XR185 A CYLINDER

Honda Motorcycle 1983 XL185S A CYLINDER

Honda Motorcycle 1983 XL185S AC CYLINDER

Honda Motorcycle 1979 XL185S A CYLINDER

Honda ATV 1983 ATC185S A CYLINDER
Can Also Be Used on 2 Valve 200cc Models 
XR200 1980-2002
ATC200 1981-83
ATC200X 1983-85
ATC200ES 1984
ATC200M 1984-85
ATC200E 1982-83
ATC200S 1984-86