Description

When your old International Harvester’s engine starts burning oil, losing compression, or just isn’t pulling like it used to, it’s time for more than just a tune-up. This basic engine overhaul kit gives you everything you need to bring that 152 cubic inch four-cylinder gas engine back to life without breaking the bank. It’s the difference between nursing a tired engine along and having the confidence that your tractor will fire up every morning when there’s work to do.

What You’re Getting

Complete set of cylinder sleeves and sleeve seals to restore proper bore dimensions
High-compression stepped-head pistons with rings, pins, and retainers for better power and efficiency
Pin bushings to eliminate worn connecting rod play
Full gasket set plus crankshaft seals to stop leaks and keep everything sealed tight
Standard 3-3/8 inch bore with 3-7/16 inch overbore supplied for flexibility

Built for Real Farm Work

This kit fits the early H Series, HV Series, W4 Series, O4 Series, and OS4 Series tractors that came with the 152 CID gas engine and early crankshaft design. These were the workhorses of mid-sized farms—pulling cultivators, running belt work, and handling loader duties. Whether you’re restoring a family heirloom or getting an old work tractor back in service, this kit covers the major wear items that typically need attention during an overhaul.

Made to Last

This is a Tru-Power kit, which means you’re getting quality parts that are built to handle the demands of farm work. The stepped-head pistons provide better compression and power output than flat-top designs, while the sleeve and gasket materials are engineered to hold up to the heat cycles and vibration that come with tractor work.

Good to Know

This is a basic kit, so main and rod bearings are sold separately—you’ll want to measure your crankshaft journals to determine what size bearings you need. The kit includes both standard bore and overbore options, so you can choose the right size based on cylinder wear. If you’re planning to do the work yourself, make sure you have access to a cylinder boring machine or plan to take the block to a machine shop for sleeve installation.