HOWO A7 Engine and Engine Spare Parts

Advantages of HOWO A7 Engine and Engine Spare Parts: Factory price, Stable production, Customized work, Quality and delivery guarantee, Acceptance of small orders.

Best-Selling Engines

HOWO A7 Engine

Explore the complete SINOTRUK HOWO A7 engine lineup, featuring D‑series diesel (9.7–11.6 L, 340–460 hp) and T‑series LNG options, with peak torque up to 2,000 N·m and compliance from Euro II to Euro V standards.

WD615 Engine

Suitable for Sinotruk Howo series trucks, ideal for engine replacement, overhaul, fleet maintenance, and export spare parts supply.

D10 Engine

D10 engine, cost‑effective and robust, suitable for various Howo trucks, repair shops, and aftermarket supply.

D12 Engine

D12 engine with high torque output, designed for Sinotruk heavy trucks, perfect for fleet rebuilds and spare parts export.

HOWO A7 Engine and Engine Spare Parts

Motor Sinotruk Howo A7

HOWO A7 Engine Introduction

HOWO A7 is a high-end heavy truck series launched by SINOTRUK in 2008. Its core power comes from two series of diesel engines, D10 and D12, as well as some WD615 series upgraded models. They are independently developed and produced by SINOTRUK. They are specially designed for heavy-duty commercial vehicles and feature high power, low fuel consumption, and high reliability.

Hot-selling Engines

WD615 Engine

Classic, Reliable, Economical and Practical

  • Mature Technology: Based on the Steyr technology platform, widely used globally, with a well-established service network
  • Cost Advantage: Affordable parts, simple maintenance, and low operating costs
  • High Adaptability: Can operate stably under harsh conditions, suitable for developing country markets
D10-Engine

D10 Engine

 High Efficiency and Energy Saving, the Balanced Choice:

  • Electrical Control Upgrade: High-pressure common rail system, injection pressure up to 1600 bar, for more complete combustion.
  • Fuel Consumption Optimization: 5-8% lower than WD615, resulting in significant annual fuel cost.
  • savings.Lightweight Design: Lighter weight, improving overall vehicle load-bearing capacity.

D12 Engine

 Flagship Power, Superior Performance

  • Large Displacement Advantage: 11.596L displacement, strong torque output at low speeds, quick acceleration from a standstill
  • Enhanced Durability: Exquisite manufacturing process, reinforced key components, overhaul mileage up to 1 million kilometers
  • Superior Driving Experience: Wide RPM range, smooth power output, reducing driving fatigue

Popular Engine Specifications

Engine Series
Model
Power / Horsepower
Torque (Nm/rpm)
Displacement (L)
Emission Standard
Main Features
Applicable Scenarios

WD615

WD615.87 

290HP/213kW@2200rpm

1160@1200-1500

9.726

Euro II

Steyr technology is mature, reliable, and has low maintenance costs.

Short-distance transportation, engineering dump trucks

WD615.69 

336HP/247kW@2200rpm

1350@1200-1500

9.726

Euro II

High cost performance and strong adaptability

Medium and long-distance freight, concrete mixer trucks

 WD615.47

371HP/273kW@2200rpm

1480@1200-1500

9.726

Euro II

Powerful and fuel-efficient

Heavy-duty transport, long-distance tractor

D10

 D10.27

270HP/199kW@1900rpm 

 1190@1200-1500

9.726

Euro III

Electronically controlled high-pressure common rail, 1600 bar injection pressure

Regional delivery, light-load long-distance

 D10.34

340HP/249kW@1900rpm

1490@1200-1500

9.726

Euro III

High torque at low speeds, quick acceleration from a standstill

4x2 tractor unit, standard load transport

D10.38

380HP/279kW@2000rpm

1590@1200-1500

 9.726

Euro III

Optimized combustion system reduces fuel consumption by 8%.

6x4 tractor unit, heavy-duty delivery

D12

D12.38

380HP/279kW@1900rpm

1800@1200-1500 

11.596

 Euro II/III

Large displacement design, ample power reserves

Heavy-duty concrete mixer trucks, mountain transportation

D12.42

420HP/309kW@1900rpm

1900@1200-1500

11.596

Euro II/III

A domestic heavy-duty truck benchmark, with a major overhaul mileage of 1 million kilometers.

6x4 flagship tractor unit, ultra-long-distance transport

 D12.46

 460HP/338kW@1900rpm

2100@1200-1500

11.596

Euro III

Top-of-the-line power, adaptable to extreme working conditions

Heavy transport and special vehicles

Howo A7 Engine Hot Selling Accessories

Howo A7 Engine Parts Price List

Howo A7 Engine Parts List

Howo A7 Engine Parts Packaging

  1. Packaging Materials: HOWO A7 engine parts are typically packaged using high-strength materials such as corrugated cardboard boxes, foam liners, or plastic films. These materials help protect the engine parts from potential damage caused by impacts, vibrations, or moisture.
  2. Individual Packaging: Smaller HOWO A7 engine parts are usually individually packaged to prevent them from scratching or rubbing against each other. Packaging methods may include using plastic bags or foam liners to provide a cushioning layer and prevent contact that could cause damage or abrasion.
  3. Combination Packaging: HOWO A7 engine parts of similar shape and size can be combined and packed into larger boxes or containers. This improves packaging efficiency and reduces the risk of parts being lost during transportation.
  4. Labeling and Identification:  Each package unit is typically labeled with relevant information, such as the engine part number, description, and quantity. This facilitates easy identification and organization of parts during inventory management and assembly.
  5. Secure and Stabilize:To prevent movement and ensure the engine parts remain in place, additional cushioning materials such as bubble wrap or foam padding are used. This helps secure the components within the packaging and minimizes the risk of damage due to displacement during transport.
  6. Documentation: In addition to the parts, the package may also contain necessary documents such as a packing list, invoice, and user manual. These documents provide information about the product contents, installation steps, and any special operating instructions.

The specific packaging process and materials used may vary depending on the size, fragility, and shipping requirements of the HOWO A7 engine parts.

Are Howo A7 engine parts compatible with other Howo models?

Many parts from the WD615 engine family are interchangeable with older Howo models (like the Howo, Stir) and even some Shacman trucks. However, parts for the D12 (MAN technology) engine are specific to the A7, T7H, and some newer C7H models. Never assume compatibility; always check part numbers.

  • Fuel System: Fuel injectors, fuel pump, fuel filter assembly.
  • Filtration: Air filter cartridge, oil filter, fuel filter(s).
  • Cooling System: Water pump, thermostat, radiator.
  • Gaskets & Seals: Cylinder head gasket (D12 engines are known for this), valve cover gasket, oil pan gasket, turbo gasket kit.
  • Valve Train: Rocker arms, push rods, valve lifters.
  • Turbocharger: Cartridge repair kits or complete turbo assembly.

This is a very common FAQ. The primary suspects, in order, are:

  • Clogged Air Filter: The most common and easily fixable cause.
  • Faulty Fuel Injectors: Worn injectors cause poor fuel atomization.
  • Turbocharger Issues: Worn turbine blades, stuck VGT mechanism (if equipped), or boost pressure leaks in hoses/intercooler.
  • Fuel Injection Pump Problems: Incorrect timing or internal wear.
  • EGR Valve (if equipped): Stuck or clogged.
  • White Smoke (Continuous): Often indicates coolant entering the combustion chamber (e.g., blown cylinder head gasket or cracked cylinder head/liner). More common in D12 engines under stress.
  • Blue Smoke: Indicates engine oil burning. Causes include worn piston rings, cylinder liners, valve stem seals, or turbocharger seal leakage.

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