Marine Diesel Engine
WP12 350-400 HP Diesel Engine
The Weichai WD12 350–400 HP Marine Diesel Engine delivers high-power, reliable propulsion ideal for large marine vessels. It features individual cylinder heads with honed liners, spin-on and duplex oil filters, fresh-water cooled lubrication with plate-type oil coolers, P-type inline injection pump, duplex fuel filters with water separator, and advanced heat-exchanger cooling. Marine-grade corrosion-resistant paint, premium hoses and clamps, and a deep oil sump ensure durability, low maintenance, and long operational life in tough sea conditions.
SALIENT FEATURES
Individual cylinder heads with honed liners
Spin-on type and duplex type oil filers
Fresh water-cooled lube and plate type oil coolers
Simple P-type inline injection pump
Duplex fuel filters fitted with water separator
High quality heat exchanger with expansion tanks
Five layers special metallic paint for long life against corrosion
High quality rubber hoses & clamps
Deep oil sump-extra operational care
TECHNICAL INFORMATION
Specification
| Engine Model | WD12C350-18 | WD12C375-21 | WD12C400-21 |
| Rated power (hp) | 350 | 375 | 400 |
| Rated power (kw) | 258 | 275 | 294 |
| Rated speed (rpm) | 1800 | 2150 | |
| Rotating direction (Facing flywheel end) | Anticlockwise | ||
| Bore X Stroke (mm) | 126 x 155 | ||
| Displacement (L) | 11.60 | ||
| No. of Cylinders | 6 — Inline | ||
| Aspiration | Turbocharged Aftercooled | ||
| Power output size | SAE 1/14 | ||
| Compression ratio | 17:01 | ||
| Emission standard | IMO Tier II | ||
| Certification | IRS/CCS/BV | ||
Lubrication System
| Oil sump capacity (L) | 24 |
Fuel System
| Injection pump type/Standard configuration | Mechanical pump |
Electrical system
| Starting system voltage | 24V DC |
Cooling System
| Total Coolant capacity (L) | 73 |
| Recommended coolant specification | premix with 50% Glycol |
Dimensions and Weight
| Net weight (kg)/Dry weight | 1100 |
| Length (mm) | 1478 |
| Width (mm) | 808 |
| Height (mm) | 1344 |
FAQ- ENGINE
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