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Perkins Prima M65 Marine

Perkins Perkins Prima M65 · PRIMA-M family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

Marinized Austin-Rover O-series 2.0 L diesel (M50 block, higher rating)

The Perkins Prima M65 (65 hp) is the same 1994 cc naturally-aspirated block as the M50 and M60 (bore/stroke 84.5 x 88.9 mm per Perkins manual TPD 0192 1273), differing only in state of tune. The engine is shared with the Perkins 500 Series industrial/agricultural engine, so internals are far cheaper through industrial channels. The parts diagrams shown here are the M50 parts catalogue (shared block, head, timing, cooling and running gear); verify the fuel-injection parts (nozzles and pump calibration) against your engine before ordering. Shared items — timing belt K614CF03, tensioner K522DF08, idler K522DF04, oil filter 2654409 — are common across the range. Also sold as the Volvo Penta MD22.

🚜 Base engine confirmed

The Perkins Prima M65 (65 hp) is the same 1994 cc naturally-aspirated block as the M50/M60 -- shared with the Perkins 500 Series industrial engine. Internals are far cheaper through industrial channels. — Perkins workshop manual TPD 0192 1273 (Prima / Prima Marine / 500 Series)

65 hp47.8 kW
1994 ccdisplacement
84.5×88.9 mmbore × stroke
4-cylcylinders
from 1988year range (approx)
NAaspiration
📋 Full specifications 8 🚜 Industrial / tractor base 🔧 Aftermarket 14
Cheaper-part coverage · 6/8
🚜 Base engine ✓🌀 Impeller ✓💧 Raw-water pump🛢️ Oil filter ✓⛽ Fuel filter ✓🌡️ Thermostat ✓➰ Belt ✓⚓ Anode

A ✓ means at least one cheaper channel — aftermarket, the tractor/industrial base engine, or a standard component — exists for this engine in that category.

Parts by section · 46 assemblies

The exploded parts diagrams for the Perkins Prima M65, grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Other

Fig P101 — Temperature Gauge & Sender Plate A [ZLHB0184]Fig P103 — Radiator & Cowling Plate A [ZMHB0248]Fig P105 — Instrumentation Assembly Plate B [ZNHB0145]Fig P109 — Instrumentation Assembly Plate C [ZNHB0145]Fig P11 — Cylinder Block Plate A [ACHB0023]Fig P111 — Application Miscellaneous & Auxiliaries Plate D [ZZUB0100]Fig P113 — Joints & Gaskets - Complete Service Kit Plate A [SGBB0117]Fig P13 — Crankshaft, Pistons & Connecting Rods Plate A [ACHB0023]Fig P15 — Cylinder Head Plate A [ACHB0023]Fig P19 — Timing Gear & Camshaft Plate A [ACHB0023]Fig P21 — Lubricating Oil Pump & Delivery Housing Plate B [ACHB0023]Fig P23 — Fuel Injection Equipment (Diesel) Plate G [AFHB2029]Fig P25 — Fuel Injection Equipment (Diesel) Plate H [AFHB2029]Fig P27 — Fuel Injection Equipment (Diesel) Plate M [AFHB2029]Fig P31 — PTO Clutch & Gearbox Plate B [BDHB0469]Fig P33 — PTO Clutch & Gearbox Plate C [BDHB0469]Fig P35 — PTO Clutch & Gearbox Plate D [BDHB0469]Fig P39 — Flywheel Housing Plate CFig P43 — Flywheel & Starter Ring Plate A [DDHB0780]Fig P45 — Starter Motor Plate A [EDHB0596]Fig P47 — Starter Motor Plate D [EDHB0596]Fig P49 — Lubricating Oil Sump Plate DFig P51 — Lubricating Oil Filler & Breather Plate C [HBHB1376]Fig P53 — Lubricating Oil Filter & Integral Oil Cooler Plate C [JBHB0989]Fig P55 — Front End Drive Input Plate B [KBHB0564]Fig P57 — Water Pump, Thermostat & Heat Exchanger Plate E [LBHB1382]Fig P61 — Water Pump, Thermostat & Heat Exchanger Plate G [LBHB1382]Fig P65 — Water Outlet & Inlet Plate B [LDHB0459]Fig P67 — Alternator & Generator Plate D [NDHB1723]Fig P69 — Alternator & Generator Plate E [NDHB1723]Fig P71 — Gear Driven Sea Water Pump Plate A [QBHB0131]Fig P73 — Gear Driven Sea Water Pump Plate B [QBHB0131]Fig P75 — Gear Drive Auxiliary Drive Option Plate A [QDHB0852]Fig P77 — Induction Manifold Plate C [TBHB0539]Fig P79 — Air Cleaner & Restriction Indicator Plate B [TDHB0213]Fig P81 — Exhaust Outlet Flange Plate B [UDHB0377]Fig P83 — Low Pressure Fuel System Plate D [VBHB1367]Fig P85 — Low Pressure Fuel System Plate H [VBHB1367]Fig P87 — Low Pressure Fuel System Plate J [VBHB1367]Fig P89 — Cold Start System Plate AFig P9 — Short Engine Plate A [ACEB9624]Fig P91 — Engine Lifting Plate A [XBHB0292]Fig P93 — Throttle & Stop Controls Plate A [ZAHB0502]Fig P95 — Mountings (Front & Rear) Plate B [ZCHB0765]Fig P97 — Lub. Oil Sump Drain Pump Plate A [ZGHB0040]Fig P99 — Lub. Oil Pressure Switch & Gauge Plate A [ZJHB0408]
📚 Manuals & Sources
Specs— none yet
Operator's Manual— none yet
Service / Workshop Manual
Parts Catalog / List— none yet
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Category
Marine
Engine family
PRIMA-M
Year range (approx)
from 1988
Cylinders
4
Rated output
65 hp (47.8 kW)
Bore × stroke
84.5 × 88.9 mm
Displacement
1994 cc
Max rpm
4000
Aspiration
Naturally aspirated

Related PRIMA-M engines

Perkins Prima M50Perkins Prima M60Perkins Prima M80TPerkins Prima M90 (4.236M/Range4)