Description
When your old Allis is losing compression or burning oil like a chimney, it’s time for a complete refresh. This basic overhaul kit gives you everything you need for a solid rebuild of your 125 cubic inch, 4-cylinder gas engine—the heart that’s powered countless hours of farm work and deserves to run like new again.
What You’re Getting
- Complete cylinder sleeve set sized for both standard 3-3/8 inch bore and 3-7/16 inch overbore options
- Matched piston and ring sets that’ll restore proper compression and eliminate oil burning
- Wrist pins for smooth piston operation under load
- Full overhaul gasket set to seal everything up tight from top to bottom
- Quality Tru-Power components built to handle the demands of farm work
Built for Real Farm Work
This kit fits the workhorses of the Allis Chalmers lineup—B series, C series, and CA series tractors that handled everything from cultivating to belt work around the farm. These reliable machines were built tough, and with this overhaul kit, you can keep yours running strong for years to come.
Made to Last
The components in this kit are built to handle the heat, pressure, and constant use that farm engines face. Quality materials and proper tolerances mean this rebuild will give you the reliability you need when there’s work waiting in the field.
Good to Know
This is a basic kit, so you’ll need to source main and rod bearings separately based on your engine’s specific measurements. Before starting, have your block and crank checked for wear and proper tolerances. It’s also the perfect time to freshen up the valves and valve seats while you’ve got everything apart.






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