Piston and Pin Assembly for Fordson Major 100mm Diesel Engine

Description

When your Fordson Major starts burning oil or you notice blue smoke coming out the stack, it’s usually the pistons calling for help. After decades of hard work in everything from plowing fields to powering sawmills, these engines need fresh pistons to keep delivering the reliable power that made these tractors legendary. This piston and pin assembly restores proper compression and stops that telltale knock that means it’s rebuild time.

What You’re Getting

• Complete piston with 100mm bore diameter for proper fit and compression
• Precision-machined gudgeon pin at 31.75mm diameter for smooth operation
• Quality construction that handles the heat and pressure of diesel combustion
• Direct replacement for original equipment – no modifications needed
• Proper ring groove dimensions for standard replacement rings

Built for Real Farm Work

Fordson Major series tractors are classic British agricultural workhorses commonly used in mixed farming operations, estate work, restoration projects, and specialty agricultural applications. Whether you’re running a cultivator, pulling a hay rake, or powering a belt-driven thresher, these pistons are designed to handle the constant load changes and high compression ratios that diesel farm work demands.

Made to Last

These pistons are built with the same attention to detail as the originals that came in your Major back in the early fifties. The aluminum alloy construction handles the thermal cycling of diesel operation, while the precision-machined crown and ring grooves ensure proper sealing and heat transfer to keep temperatures under control.

Installation Notes

This is a straightforward engine rebuild component that fits right into your Major’s diesel engine block. Make sure to check your cylinder bore dimensions and have the block honed if needed for proper piston-to-wall clearance. When installing, pay attention to ring gap specifications and use proper torque values on the connecting rod bolts. A good machine shop can help with the precision work if you’re not set up for engine rebuilding.