Plunger and Barrel reconditioning

A worn or damaged plunger and barrel set can lead to serious engine performance issues, including increased fuel oil consumption, incorrect injection timing, and in severe cases, engine damage.

When plungers and barrels fall outside OEM tolerances, replacing them with new parts is not the only solution. At YAF Engineering, we offer cost-effective reconditioning services that restore your components to as-good-as-new condition—at a fraction of the cost of new replacements.

Thanks to our investment in state-of-the-art CNC lathes and grinding machines, we maintain a ready-to-fit stock of plungers and reduce turnaround times for reconditioning projects.

Our reconditioning process includes:

Cleaning, visual inspection, and dimensional calibration of all parts
Honing of the barrel and fabrication of an oversize plunger
Application of the appropriate hardening process on the new plunger
Precision grinding of the plunger to final dimensions for accurate fit
Lapping and polishing of all sealing surfaces
Anti-corrosion coating and protective packaging for long-term storage or shipping

This service not only restores full functionality and precision to your fuel system but also significantly reduces your maintenance cost and downtime.