Shire 20 Workboat Marine Engine 20 HP, PRM 60D2 Gearbox, 2:1 Ratio
The Shire 20 is a three-cylinder workboat engine based on a Yanmar marine engine, displacing 854 cc and paired with a PRM60 mechanical gearbox at a 2:1 ratio. It is fully dyno tested and comes with a standard control panel carrying a tachometer and warning lights.
Fitted equipment includes a 125 amp 12-volt alternator and a long-life heavy-duty raw water pump, with a 250-hour oil and filter change period. The accessory kit contains a remote coolant header tank, engine oil, coolant/antifreeze, a stainless steel water-injection exhaust elbow, an engine oil sump pump, primary and secondary fuel filters and an electric stop solenoid.
Highlights
Three-cylinder Yanmar marine base engine, 854 cc
PRM60 mechanical gearbox, 2:1 ratio
125 amp 12V alternator
250-hour oil and filter change period
Fully dyno tested
Header tank, oil, coolant and exhaust elbow included
Specifications
Brand | Shire |
Model | Shire 20 |
Base Engine | 3 cylinder Yanmar marine |
Displacement | 854 cc |
Gearbox | PRM60 mechanical (PRM 60D2) |
Reduction Ratio | 2:1 |
Alternator | 125 amp 12V |
Oil Change Period | 250 hours (oil and filter) |
Control Panel | Tachometer and warning lights |
Good to know
Installation, rigging and commissioning by a qualified marine technician are recommended; follow the manufacturer's pre-delivery and break-in procedures.