Description

When your Allis Chalmers W, WC, WF, W25, or WD starts smoking more than usual or losing power, it’s probably time for an engine rebuild. These orange machines were built to work hard for decades, but even the toughest 201 cubic inch four-cylinder needs fresh internals after years of faithful service. This complete overhaul kit gives you everything needed to bring that engine back to life and keep it running strong for years to come.

What You’re Getting

Complete sleeve and piston kit with rings and pins for a fresh cylinder bore
Full gasket set to seal everything up tight from head to oil pan
New intake and exhaust valves with springs, guides, and keys for proper combustion
New main bearings and 0.010 oversized rod bearings for smooth operation
All components from Tru-Power for consistent quality and proper fit

Built for Real Farm Work

This kit fits the classic Allis Chalmers models that helped build American agriculture—the W, WC, WF, W25, and WD tractors. These workhorses were used for everything from cultivating row crops to powering belt-driven equipment around the farmstead. The 201 CID engine was known for its reliability and torque, making these tractors popular with farmers who needed dependable power for daily chores.

Made to Last

Farm engines take a beating from dust, dirt, and long hours under load. This Tru-Power kit uses quality materials designed to handle the demands of agricultural work. The sleeves provide a fresh bore surface, while the new valvetrain components ensure proper breathing and compression for maximum power and fuel efficiency.

Good to Know

This is a complete engine rebuild project that requires pulling the engine and complete disassembly. You’ll need proper tools, machine shop services for boring and valve work, and experience with engine rebuilds. Most folks take the block to a machine shop for boring, valve seat work, and pressure testing before assembly. The 0.010 oversized rod bearings indicate this kit is designed for engines with slight wear on the crankshaft journals.