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Volvo Penta MD31 Marine

Volvo Penta Volvo Penta MD31 · VP-MD family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine confirmed

The Volvo Penta MD31 is a marinized Peugeot/Indenor XDP 6/90 six-cylinder block; internal parts cross to Indenor/Peugeot 6-cyl XD numbers. source

61 hp44.9 kW

3168 ccdisplacement

90×83 mmbore × stroke

6-cylcylinders

1980–1990year range (approx)

NAaspiration

📋 Full specifications 🚜 Industrial / tractor base 🔧 Aftermarket 14 🔩 Ellebogen Engine Mounts

Cheaper-part coverage · 5/8

🚜 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 · 93 assemblies

The exploded parts diagrams for the Volvo Penta MD31, grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Controls

Fig 19210 — Engine Speed Control and Stop: A Fig 20355 — Engine Speed Control and Stop

Cooling

Fig 19133 — Sea Water Pump and Installation Components: A Fig 19140 — Oil Cooler and Installation Components: A Fig 19147 — Air Filter and Installation Components Fig 19153 — Inlet and Exhaust Manifold and Installation Components Fig 20329 — Heat Exchanger and Expansion Tank with Installation Components Fig 20331 — Circulation Pump with Installation Components Fig 20333 — Thermostat Housing with Installation Components Fig 20336 — Sea Water Pump with Installation Components: A Fig 20339 — Oil Cooler with Installation Components: A Fig 20341 — Inlet and Exhaust Manifold with Installation Components

Electrical

Fig 19216 — Alternator and Installation Components: A Fig 19220 — Starter Motor and Installation Components: A Fig 19242 — Electrical System and Instruments Fig 19247 — Electrical Box and Installation Components: A Fig 20358 — Alternator and Installation Comps Fig 20359 — Alternator 12V: 872018 Fig 20361 — Starter Motor and Installation Components Fig 20365 — Electrical Box Fig 20370 — Cables and Terminals Fig 20371 — Electrical Materials

Engine

Fig 19101 — Cylinder Head: TAMD31A SOLAS Fig 19111 — Camshaft and Valve Mechanism Fig 19124 — Oil Filter and Installation Components: A Fig 19128 — Engine Suspension: A Fig 20311 — Cylinder Head: A Fig 20312 — Cylinder Block and Flywheel Cover: A Fig 20313 — Crankshaft and Related Parts: A Fig 20315 — Timing Gear Cover and Gears: A Fig 20316 — Lubricating System: A

Fuel

Fig 19205 — Fuel System

Miscellaneous Equipment

Fig 19307 — Cooling Water Intake: 841723 Fig 19326 — Rudder Indicator Kit: 858884 Fig 19328 — Conversion Kit 24V: 858910 Fig 19361 — Water Cooled Exhaust Muffler with Installation Components Fig 19372 — Thermo Switch Control Fig 19393 — Vacuum Valve Kit Fig 20416 — Alarm Unit: 827940 Fig 20417 — Safety Contact Fig 20418 — Charging Relay Separate Mounted: 858841 Fig 20419 — Charging Relay Fig 20420 — Main Switch Fig 20421 — Instrument Panel: 860184 Fig 20422 — Extra Panel and Operating Hour Meter Fig 20423 — Alarm Panel: 858876 Fig 20424 — Instrument Panel Flybridge: 864043 Fig 20425 — Rudder Indicator Kit: 1140463 Fig 20428 — Alternator Kit: 860872 Fig 20431 — General Bracket Fig 20432 — Pulley: 860024 Fig 20433 — Coupling Flange: 828390 Fig 20434 — Coupling Flange: 853794 Fig 20435 — Coupling Flange: 827927 Fig 20436 — Propeller Shaft Flange: 828388 Fig 20437 — Propeller Shaft Flange: 806383 Fig 20438 — Flexible Propeller-Shaft Coupling: 838471 Fig 20439 — Propeller Shaft Stuffing Box: 828254 Fig 20440 — Propeller Shaft Sleeve Fig 20441 — Stuffing Box: 859012 Fig 20442 — Stuffing Box and Grease Gun: 859016 Fig 20443 — Propeller, Bronze and Zinc Anode: A Fig 20444 — Propeller, Drive Unit: A Fig 20445 — Duoprop Propellers for Diesel Engines Fig 20448 — Sea Water Filter and Sea Water Intake Fig 20451 — Flybridge Single Engine Installation Fig 20452 — Flybridge Twin Engine Installation Fig 20453 — DS Unit Fig 20454 — Bilge Pump and Engine Room Fan Fig 20455 — Tool Kit Fig 20456 — Tool Kit: 858282 Fig 20463 — Hot Water Outlet Fig 20464 — Water Heater Kit Fig 20465 — Expansion Tank Kit Fig 20466 — Drip Protection Fig 20469 — Charge Pressure Gauge Kit: 858603 Fig 20470 — Oil Bilge Pump, Electrical: 843114 Fig 20471 — Fuel Tank and Connecting Components Fig 20472 — Fuel Filter Fig 20474 — Tank Meter Kit for Fuel and Fresh Water: 1140461 Fig 20475 — Control for top Installation PC740: A Fig 20476 — Control for top Installation PC840, Single Fig 20477 — Control for top Installation PC840, Twin Fig 20479 — Handle Pt top/side for Control: 1140041 Fig 20480 — Control for Side Installation PC740: 851604 Fig 20481 — Control for Side Installation PC840 Fig 20482 — Control for Side Installation PC741, PC841: 1140092 Fig 20483 — Plate, Control Cable Fig 20485 — Connecting Kit for Dual Station Fig 20487 — Sea Water Strainer Kit

Transmissions

Fig 19252 — Connecting Components Reverse Gear MS2B Fig 19258 — Connecting Components Reverse Gear MS4A Fig 20384 — Connecting Components Reverse Gear MS4B

📚 Manuals & Sources

Specs— none yet

Operator's Manual— none yet

Service / Workshop Manual— none yet

Parts Catalog / List— none yet

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Category: Marine
Engine family: VP-MD
Year range (approx): 1980–1990
Cylinders: 6
Rated output: 61 hp (44.9 kW)
Bore × stroke: 90 × 83 mm
Displacement: 3168 cc
Aspiration: Naturally aspirated

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