Products Description

Weichai WP12 Diesel Engine features a compacted graphite iron cylinder head and forged steel crankshaft, built on automated CNC lines with 100% cold and hot testing for consistent heavy-duty performance.

Ready Stock

Heavy Torque

Basic Info.

Ignition Mode

Electric Ignition

Speed

High Speed

Cooling Cylinder

Water-Cooled

Intake Pressure Impulse

Supercharged

Piston Movement

Reciprocating

Fuel

Diesel

Number of Strokes

Four-Stroke

Cylinder Arrangement Form

Number of Cylinders

6-Cylinder

Type

Combustion Engine

Engine

Weichai Steyr

Net Weight

1100 Kg

Color

Customers' Requirement

Speed Mode

Mechanical Governor

Noise

≤ 108 dB(a)

Overhaul Period

6000 H

Displacement

11.696 L

Bore* Stroke

126*130 mm

Fuel Consumptio

195 G/Kw.H

Start

Electric Start

Transport Package

Plastic Bag/ Plywood

Specification

1534*807*1512 mm

product detail

As a heavy-duty Weichai WP12 Diesel Engine supplier, we offer Weichai WP12 Diesel Engine cylinder head assemblies with high-strength alloy casting that resists thermal cracking under continuous heavy loads, supplied complete with valves and springs for immediate installation.

For the fuel system, the common rail delivers precise injection for lower fuel consumption and emissions, and we stock OEM injectors and pumps for wholesale orders, supporting component-level sourcing for fleet

Applications

Long-Haul Tractor

Weichai WP12 Diesel Engine powers 6x4 tractor trucks for cross-border logistics.

Dump Truck

High torque for mining and construction hauling.

Concrete Mixer

Stable PTO performance for continuous mixing.

Mining Truck

Reinforced cooling and filtration for dusty sites.

Municipal Vehicle

Clean emission options for city service fleets.

Fleet Replacement

Direct drop-in for HOWO, Shacman, FAW, Foton.

customized service

Power Rating - 380–460 hp tuned for your market.

Emission Level - Euro II–Euro V configurations available.

Flywheel Housing - SAE options for different transmissions.

Intake/Exhaust - Custom manifold and pipe layout.

Oil Pan - Front or rear sump for chassis fit.

Cooling Fan - Steel or plastic, fixed or clutch type.

quality control process

Incoming Material - Chemical and hardness check on steel and castings.

Casting & Forging - Defect inspection before machining.

CNC Machining - CMM dimensional verification for main bores.

Assembly - Torque control and traceability records.

Cold Test - Oil pressure, compression and leak test.

Hot Test - Full-load dyno run for power and fuel data.

Paint & Finish - Anti-corrosion coating inspection.

Final Audit - Random teardown and export packing check.

Packing & Shipment - Seaworthy packing for China truck engine exporter routes.

company introduction

factory

3,000㎡ in-house facility covering assembly, painting and warehousing under one roof for dependable year-round supply.

Factory Scale

CNC laser cutting and robotic welding, backed by an automated paint line, keep every frame consistent.

Production Capacity

400+ trailers shipped a year and 30+ units every month, with mixed-model scheduling across small and bulk orders.

Production Capacity

Our Partners

customer case

Foreign client in business negotiation

Client reading product brochure

Foreign team business meeting

Customer vehicle inspection

Real shots of overseas customers receiving goods and screenshots of positive reviews. After field tests by customers, the quality of Howo dump trucks exceeds expectations, and our supporting services gain high recognition. All vehicles pass rigorous inspections and are suitable for construction sites, mines and earthwork projects. Spare parts supply and after-sales technical support are available upon vehicle purchase.

Factory | Workshop

HOWO 6×4 Crane Truck Chassis

Pre-assembled Truck Chassis

High-Strength Steel Beam Production

Raw Material & Spare Parts Storage

Truck Showroom:

Brand-new truck cabs ready for delivery

Factory Fleet

Full range of construction trucks in stock

Truck Yard

Large-scale dump truck inventory base

Truck Yard

Large-scale dump truck inventory base

certificate

transportation

Before dispatch, every truck undergoes a comprehensive inspection-covering powertrain performance, full-body surface condition, and accessories-so no detail is overlooked. After professional lashing and reinforcement, each unit is securely loaded onto heavy-duty flatbed trailers and transported directly to the port for seamless shipping coordination. With end-to-end visual logistics tracking, we ensure full visibility and quality control from our factory gate to your overseas project site, delivering a truly worry-free, turnkey handover every time.