Description
When your old D10 starts smoking, burning oil, or just feeling tired after decades of faithful work, it’s time for more than a tune-up. This complete overhaul kit has everything you need to bring that 138 cubic inch 4-cylinder gas engine back to factory specs, giving your tractor the power it needs to keep earning its keep around the farm.
What You’re Getting
- Complete sleeve and piston assembly with rings that fit like they came from the factory
- Full gasket set that seals everything from head to oil pan—no weeping or leaks
- Standard and oversized rod bearings plus main bearings for a smooth-running crankshaft
- Complete valve train including intake and exhaust valves, springs, guides, and keepers
- Everything sized for a proper rebuild—no hunting down a dozen different part numbers
Built for Real Farm Work
The D10 was Allis Chalmers’ compact utility tractor that handled everything from cultivating to loader work on smaller farms. These simple, reliable machines came with that trusty 138 cubic inch gas engine that, when properly rebuilt, can run for thousands more hours. Whether you’re brush hogging, running a belly mower, or working three-point implements, this kit gets your D10 back to doing what it does best.
Made to Last
Tru-Power builds their overhaul kits to meet or exceed original specifications because they know these engines work hard for a living. The 3-9/16 inch overbore pistons handle engines that have been worked hard, while the complete bearing sets ensure everything rotates smoothly under load. You’re getting the same quality components that went into your tractor when it rolled off the assembly line.
Installation Notes
This is a complete teardown job that requires machine shop work for cleaning and inspection. You’ll want to check cylinder bore condition, crankshaft journals, and head flatness before reassembly. Take your time with the assembly work—these old engines respond well to careful break-in procedures and proper torque specifications.






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