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The Wisconsin VH4D is an air-cooled engine with a long history in industrial and off-road equipment — ground support, light industrial machinery, and older equipment still running in the field. Pilot Engines remanufactures the VH4D as a complete Drop-In unit built to your exact engine serial number, so the replacement goes in right the first time.

The Drop-In is remanufactured using OE parts, with every component inspected before assembly and dyno tested before it ships. The build meets OEM performance specs — which matters when the machine it's going back into is expected to run.

Your engine serial number is the starting point. Give us that and we'll confirm fit, availability, and lead time. Round-trip freight is prepaid within the continental US, and Pilot Engines backs the work with a price match guarantee. We also buy cores — so your old VH4D has value when it comes out.

Browse the available Wisconsin engine models below, or call (877) 599-4806 and our team will get back to you with pricing and availability.