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Shibaura-built diesel engines power a wide range of New Holland compact tractors, skid steers, and other compact equipment. The N843 and N844 series are workhorses in the compact equipment world — and when one needs replacing, getting the right engine matters as much as getting it fast. Pilot Engines remanufactures the N843, N843H, N844, and N844T as complete Drop-In units built to your exact engine serial number.

Every Drop-In is remanufactured using OE parts, with each component inspected before assembly and dyno tested before it ships. The engine meets OEM performance specs and is built to match your exact serial number — so it installs in your machine without modifications.

Your engine serial number is where it starts. Give us that and we'll lock in the right build for your specific machine. Round-trip freight is prepaid within the continental US, in-stock units ship immediately, and most others are ready within 7–10 business days. We also buy cores — so your old Shibaura/New Holland engine has value when it comes out.

Browse the available engine models below, or call (877) 599-4806 and our team will confirm fit, availability, and pricing.