WP12 series bus engine
Weichai bus engines, with the displacement ranging from 2.3L to 12L and the power ranging from 88kW to 338kW meet Euro V, Euro VI and other emission standards, and are applicable to various buses with a length greater than 5m such as school buses, passenger buses, private buses, touring buses, public buses, hybrid electric buses, and special buses. These new-generation power products (RA/WP2.3N/WP3N/WP4.1N/WP4.6N) are applicable to rural public buses, minibuses, long-nose school buses, high-end MPVs, European light buses, and characterized by high reliability, strong power, fuel saving and environmental protection.
WP12 series bus engine
Product parameters
| Mode | Displacement （L） |
Number of valves per cylinder | Rated power/speed (kW/rpm) |
Maximum torque/speed (N.m/rpm |
Min. fuel consumption on external characteristic curve (g/kW·h) |
Technical route | Applicable model |
| WP10.380E32 , EGR, 380 hourspower | 11.596 | 4 | 338/1900 | 2110/1000-1400 | 187 | Common rail + SCR | 12–14M passenger buses、14–18M public buses |
| WP12.375E50 | 11.596 | 4 | 276/1900 | 1800/1000-1400 | 187 | Common rail + SCR | 12–14M passenger buses、14–18M public buses |
| WP12.400E50 | 11.596 | 4 | 294/1900 | 1920/1000-1400 | 187 |
Common rail + SCR
|
12–14M passenger buses、14–18M public buses |
| WP12.430E50 | 11.596 | 4 | 316/1900 | 2060/1000-1400 | 187 |
Common rail + SCR
|
12–14M passenger buses、14–18M public buses |
| WP12.460E50 | 11.596 | 4 | 338/1900 | 2110/1000-1400 | 187 | Common rail + SCR | 12–14M passenger buses、14–18M public buses |
| WP12.420E32, EGR, 420 hourspower | 11.596 | 4 | 338/1900 | 2110/1000-1400 | 187 | Common rail + SCR | 12–14M passenger buses、14–18M public buses |
Product advantages
Power performance
- High output torque at low speed, strong power.
Economy
- The economic zone shifts further to the low speed range, which is more suitable for operating conditions of bus.
Comfort
- The noise on full MAP and vibration are optimized and thus reduced, ensuring good comfort.
Adaptability
- Two, three, or more alternators can be equipped to meet different user requirements.
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