When you’re hearing a knock in the engine or notice excessive blow-by during startup, worn piston pin bushings might be the culprit. These little bushings do a critical job—they allow the piston pins to move smoothly while keeping everything properly aligned in the cylinder. When they wear out, you’ll get metal-on-metal contact that can damage pistons and connecting rods, turning a simple repair into a major overhaul.
What You’re Getting
- Set of four bushings that’s exactly what your International Harvester engine needs for a complete repair
- Precision-machined to OEM specifications for proper fit and long service life
- Durable construction that handles the heat and pressure inside your engine block
- Direct replacement parts that restore proper clearances and eliminate damaging play
Built for Real Farm Work
These bushings are designed for International Harvester tractors that put in long days during planting, harvest, and everything in between. Whether you’re running an older Super C for light farm work or a bigger machine pulling heavy implements, proper piston pin bushings keep your engine running smooth and protect against costly damage.
Made to Last
Farm tractors run hard and these bushings are built to handle it. They’re made from quality materials that resist wear even with extended operation under load. The precise tolerances help maintain proper oil clearances so your engine gets the lubrication it needs where it counts most.
Installation Notes
Installing piston pin bushings requires removing the pistons from the engine, so this is typically part of a larger engine rebuild or overhaul project. You’ll need to press out the old bushings and press in the new ones, then ream them to the correct inside diameter for your piston pins. It’s a good time to check your pistons, rings, and cylinder sleeves while you’ve got everything apart.
