Description
When your old Allis Chalmers B, C, or CA tractor starts burning oil or losing power, you know it’s time for a complete engine rebuild. These classic four-cylinder gas engines were workhorses in their day, but after decades of hard farm work, they need attention. This complete overhaul kit has everything you need to bring that engine back to life and get your tractor running like it should.
What You’re Getting
- Complete sleeve and piston kit with 3-7/16 inch overbore to refresh worn cylinders
- Full gasket set to seal everything up tight and prevent leaks
- Standard rod and main bearings to restore proper crankshaft clearances
- New cam bearings, valves, springs, guides and keys for reliable valve operation
- Made by Tru-Power, known for quality aftermarket engine components
Built for Real Farm Work
This kit fits the classic Allis Chalmers B series tractors, including the B, 1B, C, CA, B15, and B125 models. These were the utility tractors that handled everything from cultivating to belt work around the farm. Whether you’re restoring a family heirloom or just need to get an old workhorse back in service, this is the same quality rebuild your local engine shop would use.
Made to Last
Engine rebuilds are a big job, so you want parts that’ll hold up. This Tru-Power kit includes precision-machined components that meet or exceed original specifications. The overbore sleeves and pistons give you a fresh cylinder surface, while the complete bearing set ensures proper oil clearances throughout the engine.
Good to Know
This is a complete overhaul kit, so you’ll want to check your crankshaft for condition and have it turned if needed. The 3-7/16 inch overbore specification refers to the cylinder sleeve outer diameter. Since this is a major rebuild, it’s a good time to also check other wear items like the oil pump and timing gears while you have everything apart.






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