Fitment:
for Honda GX25, GX25N, GX25NT 25cc 4-stroke mini gas engines.
for Honda FG110, FG110K1 mini tillers and cultivators.
for Honda HLT422, UMK425, UMK425E series string trimmers and brushcutters.
for Wacker Neuson, Atom, Mantis equipment powered by Honda GX25 25cc engines.
Please verify your original engine crankcase mounting bolt holes, cylinder bore size (35mm), and block housing profile carefully before purchasing.
 

Replace Part Number:
for Honda 10100-Z0H-405, 10100Z0H405, 10100-Z0H-000, 10100Z0H000
for Honda 13101-Z0H-000, 13101Z0H000 (Piston)
for Stens 500-025
 

Package included:
Package included: You will get what you see in the 1st listing photo.
 

Specifications:
- Product Type: Outdoor Power Equipment Mini Tiller String Trimmer 4-Stroke 25cc Gas Engine Crankcase Cylinder Block Housing 35mm Piston Ring Wrist Pin Bolts Rebuild Service Kit
- Feature: Direct replacement crankcase cylinder block and piston set engineered to restore engine compression, repair scored or damaged cylinders, solve oil burning and crankcase cracking issues, and deliver full engine power output.
 

Note: Please comparison your original part carefully with our pictures, crankcase cavity shape, and piston pin height before ordering to ensure correct fitment.