Size:
Center mounting hole 42mm
Core hole 19mm
Choke hole 24mm

Compatible with:
Carburetor fits 168 Engine Motor Generator Lawn mower water 
Carburetor for Honda GX160 GX168 GX200 5.5HP 6.5HP engine
Carburetor fits water pump version 

Also fits Lawn Mower / Generator / Water Pumps and other machine using the same model engine!

Honda
GX160K1 (Type QA)(VIN# GC02-2000001-8669999) Small Engine
GX160K1 (Type QA2)(VIN# GC02-8670001-9099999) Small Engine
GX160K1 (Type QA2/A)(VIN# GC02-8670001-9099999) Small Engine
GX160K1 (Type QA2/B)(VIN# GCAAK-1000001-9999999) Small Engine
GX160K1 (Type WKT2/A)(VIN# GC02-8670001-9099999) Small Engine
GX160K1 (Type WME2)(VIN# GC02-2000001-8669999) Small Engine
GX160K1 (Type WKT2)(VIN# GC02-8670001-9099999) Small Engine
GX160U1 (Type QA2)(VIN# GCACK-1000001) Small Engine
GX160U1 (Type QA26)(VIN# GCACK-1000001) Small Engine
GX160U1 (Type NDM4)(VIN# GCACK-1000001) Small Engine
GX160U1 (Type SHRY)(VIN# GCACK-1000001-9999999) Small Engine
GX160U1 (Type VED6)(VIN# GCACK-1000001-9999999) Small Engine
GX160U1 (Type WKT4)(VIN# GCACK-1000001-9999999) Small Engine
GX160U1 (Type WKT6)(VIN# GCACK-1000001-9999999) Small Engine
GX160U1 (Type WKD6)(VIN# GCACK-1000001-9999999) Small Engine
GX160U1 (Type WME2)(VIN# GCACK-1000001-9999999) Small Engine
GX160U1 (Type WKT2)(VIN# GCACK-1000001-9999999) Small Engine

Part number 
16100-ZH8-W61 16100-ZH7-W51

Package includes: 
1pc carburetor
3pcs gaskets
1pc fuel line
1pc air filter
1pc intake manifold