Weichai D12/P12 Series 380HP/400HP/480HP 12L In-line Water Cooled 4 Strokes 6 Cylinder for Heavy Truck

Weichai P12/D12 diesel engines have obvious advantages, performing excellently in terms of power, reliability, economy, and maintenance. They offer strong power to meet various working conditions, high reliability with a robust structure and stable systems, good economy with low fuel consumption and adaptability to various fuels, and convenient maintenance with sufficient spare - part supply.The power range is 280 - 353kW.

Technical parameters of D12/P12 series diesel engines

Model WP12-380 D12-400 D12-480
Type in-line, water-cooled, 4-stroke, turbocharged and intercooled, mechanical direct injection
Number of Cylinders 6 6 6
Cylinder Bore (mm) 126 126 126
Stroke (mm) 155 155 155
Total Displacement (L) 11.596 11.596 11.596
Rated Power/Speed (KW/r/min) 280/2200 294/2100 353/2100
Maximum Torque/Speed (N.m/r/min) 1600/1300~1400 1780/1200~1500 1950/1200~1500
Minimum Fuel Consumption (g/kw.h) 192 192 192
Torque Reserve Ratio (%) 23.9 23.4 23.1
Compression Ratio 17 17 17
Maximum No-load Speed (r/min) 2450±50 2370±50 2370±50
Stable Idle Speed (r/min) 650±50 650±50 650±50
Emission Level China Stage II China Stage II China Stage II
Dimensions (L×W×H)（mm） 1646*825*1090 1646*825*1090 1646*825*1090
Net Weight (kg) 1100 1100 1100

Main Features

Powerful Performance：They have high power and torque output, can quickly respond to load changes, and are suitable for various complex working conditions such as heavy - load and high - speed operations.
High Reliability：They use high - strength materials and advanced manufacturing processes, with a mechanical structure that is sturdy and durable. The fuel injection and control systems are stable, resulting in a low failure rate.
Good Economy：They have excellent fuel atomization and combustion effects, high thermal efficiency, and reduced fuel consumption per 100 kilometers. They have strong adaptability to different fuel qualities, reducing operating costs.
Convenient Maintenance：The modular design facilitates disassembly and assembly, making daily inspection and maintenance easy. Spare parts are abundantly available in the market, leading to low maintenance costs.

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