Volvo Penta D2-50 Inboard Diesel Engine
Volvo Penta D2-50 Specs
| Brand | Volvo Penta |
| Full Model Code / Configuration | D2-50F (In-line 4-cylinder diesel engine) |
| Country of Origin | Sweden |
| Engine Series / Family | D2 Series |
| Engine Type / Cylinder Block | Inline-4, 4-Stroke (Perkins base block) |
| Displacement | 2.20 Liters / 2,200 cc |
| Rated Horsepower | 50 HP (36.8 kW) @ 3000 RPM |
| Maximum Torque | 141 Nm @ 1800 RPM |
| Rated Engine Speed / Redline RPM | 3000 RPM |
| Aspiration & Induction | Naturally Aspirated |
| Fuel System / Injection | Indirect Injection (In-line cam-driven injection pump, mechanical) |
| Bore x Stroke | 84 mm x 100 mm |
| Compression Ratio | 23.3:1 |
| Electrical System Voltage | 12V |
| Alternator Output | 115 Amps |
| Cooling System Type | Fresh Water Heat Exchanger (Closed-loop with sea water heat exchanger) |
| Coolant Capacity | 9.5 Liters |
| Exhaust System / Configuration | Wet Exhaust (Water-injected mixing elbow) |
| Emission Compliance | EU RCD 2, US EPA Tier 3, BSO II |
| Lubrication System Capacity | 10.5 Liters (Total oil capacity) |
| Recommended Oil Grade | VDS-3 / VDS-4.5, SAE 15W-40 / 10W-30 (API CI-4 / CK-4) |
| Fuel Type / Requirement | Diesel Fuel / HVO (EN 590 / ASTM D975 No. 2-D) |
| Fuel Consumption at Cruising Speed | 4.9 Liters/hour @ 2400 RPM (Approx. 75% load) |
| Compatible Marine Gear / Transmission | MS25A, MS25L, 130S (Saildrive) |
| Available Gear Ratios | 2.23:1, 2.74:1 (MS25A) / 2.30:1, 2.47:1 (MS25L) / 2.19:1 (130S) |
| Drive Type Compatibility | Shaft Drive / Saildrive |
| Dry Weight - Engine Only | 233 kg |
| Dry Weight - with Transmission | 249 kg (with MS25A) / 253 kg (with 130S Saildrive) |
| Dimensions - L x W x H | 831 mm x 544 mm x 686 mm (with MS25A) |
| Governor / Engine Control Unit | Mechanical Centrifugal Governor |
| Control System Interface | Mechanical Cables (Analog instrumentation via MDI electronic system display box) |
| Starting System | Electric starter motor 2.0 kW |
| Flywheel & Housing Size | Proprietary Volvo small pattern |
| Standard Warranty | 2 Years / 1000 Hours (Commercial) or 5 Years (Recreational Limited Warranty) |
| Application | Monohull sailboats (38–45 feet), coastal cruising catamarans, displacement motorboats, and small heavy-duty work craft. |
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