Description

When your Kubota engine’s lost compression and you’re dealing with blow-by, smoke, or just can’t get the power you used to have, it’s time for a rebuild. This oversize piston kit gives you everything you need to bring that engine back to life and get your equipment running strong again. A .5mm oversize is the standard first step when cylinders need boring out.

What You’re Getting

Complete piston kit with piston, wrist pin, pin retainers, and full ring set
Rod bushing included so you don’t have to hunt down extra parts
Precision-machined .5mm oversize for proper cylinder bore cleanup
Quality construction that meets OEM specifications for reliable performance
Direct replacement for Kubota part number 17121-21780

Built for Real Farm Work

This kit works with Kubota’s D1703, V2203, and F2803 direct injection engines—workhorses you’ll find in compact tractors, skid steers, and utility vehicles that handle everything from loader work to field maintenance. These engines are known for their reliability, and this kit helps you keep them running like they should.

Made to Last

Kubota engines are built tough, and this piston kit matches that quality. The rings are designed to handle the heat and pressure of diesel combustion while providing the seal you need for good compression and oil control. When installed properly in a freshly bored cylinder, this kit will give you years of dependable service.

Good to Know

Remember, .5mm oversize means your cylinders need to be professionally bored and honed to the right size first. This isn’t a drop-in replacement for worn standard pistons. Make sure you have the machine work done by someone who knows diesel engines, and always check your clearances before final assembly.