High-Quality Howo A7 Engine Supplier

We provide complete Howo A7 Engine and matching OEM spare parts.

About Our

We are a professional factory-direct exporter of Howo A7 Engine and matching original spare parts for SINOTRUK Howo A7 heavy-duty tractor trucks, dump trucks and cargo trucks. The Howo A7 power system covers classic WD615 series and high-performance D10/D12 series diesel engines with horsepower ranging from 336HP to 420HP, featuring strong climbing power, stable long-distance operation and low failure rate. We supply brand-new complete engines, tested remanufactured assemblies and full-range OEM replacement parts, with sufficient spot inventory, global shipping and 24-hour professional technical support. Get your customized wholesale quotation and official HOWO A7 Engine spec sheet now.

Product Overview

The Howo A7 Engine is the exclusive factory power unit designed for SINOTRUK Howo A7 heavy-duty commercial vehicles, integrating mature traditional mechanical engines and upgraded high-efficiency electronic control diesel engines. As a core power configuration for medium and heavy long-haul transportation, the Howo A7 Engine adopts two mainstream technical routes: classic WD615 turbocharged intercooled mechanical injection engines and new-generation D10/D12 electronically controlled fuel-saving engines, fully meeting Euro 2 to Euro 4 emission standards. With diverse power options, compact structural layout and excellent environmental adaptability, Howo A7 Engine can adapt to long-distance highway transportation, mountainous road heavy load and mining complex working conditions, becoming the most reliable power choice for global Howo A7 truck fleets and equipment maintenance.

Howo A7 Engine Parts For Sale

Air compressor

Air filter

Alternator

Fuel filter

Water pump

Front oil seal

Rear oil seal

Starter

Core Technical Specifications

The Howo A7 Engine has multiple mainstream power versions to match different transportation demands. Below are official factory benchmark parameters covering WD615 and D12 core configurations, supporting vehicle matching, overhaul and parts replacement:

Mainstream Howo A7 Engine Versions & Parameters

1. WD615.69 Engine (336HP/247kW): Displacement 9.726L, max torque 1350N·m, 2200rpm rated speed, Euro 2 emission, suitable for standard long-haul cargo trucks

2. WD615.47 Engine (371HP/273kW): Displacement 9.726L, max torque 1500N·m, enhanced heavy-load version for mining and mountain roads

3. D12.42 Engine (420HP/309kW): Displacement 12L, electronically controlled injection, max torque 2100N·m, Euro 4 emission, high-efficiency power for overloaded long-distance tractors

Universal Core Specifications

Structure: Inline 6-cylinder, 4-stroke, water cooling, turbocharged & intercooled Fuel Supply: Mechanical injection / Electronic intelligent injection (D12 version) Applicable Models: HOWO A7 4×2/6×4 tractor, dump truck, bulk cargo truck Overall Net Weight: 850KG–920KG (different versions) Working Life: Over 800,000KM under standardized maintenanceHowo

Howo WD615 Engine

Sinotruk WD615 is a classic inline six-cylinder water-cooled diesel engine that has delivered reliable performance across countless global operating miles. Serving as the core power unit for early-generation HOWO A7 heavy trucks, this engine stands out for its straightforward mechanical layout, low maintenance requirements, and exceptional long-term reliability even in harshest working environments. Widely fitted on HOWO A7 vehicles for heavy engineering transport, mining haulage and cross-country long-distance logistics, the WD615 family covers multiple mainstream variants including WD615.69, WD615.47, WD615.87 and WD615.57. Each model features customized displacement, horsepower output and torque characteristics to perfectly fit diverse transportation and operational demands.

D10 Engine

The Sinotruk D10 engine delivers major technological upgrades tailored for the HOWO A7 vehicle platform. This 10-liter inline six-cylinder diesel unit adopts a high-pressure common rail fuel injection system. The system enables accurate fuel injection, optimized combustion performance, quieter operation and cleaner exhaust emissions. Compared with older engine generations, the D10 series achieves higher power output per liter and superior fuel efficiency, while fully complying with increasingly stringent emission standards. It is widely installed on modern HOWO A7 heavy trucks for regional distribution, freight transport and general cargo haulage. Its mainstream variants cover D10.27, D10.34, D10.38 and D10.38-50 engines, catering to various haulage demands.

Core Advantages

1.Multi-Power Flexible Matching

Howo A7 Engine provides 336HP, 371HP and 420HP multi-power options, covering light standard load, heavy load and overloaded transportation scenarios. Buyers can select the most cost-effective power configuration according to local road conditions and cargo weight.

2.Excellent Fuel-Saving Performance

The optimized air intake and fuel injection system of Howo A7 Engine reduces invalid fuel consumption during idling and full-load operation. The electronically controlled D12 version further improves fuel utilization rate, helping fleets reduce long-term operating costs significantly.

3.Strong Durability & Low Failure Rate

The cylinder block, crankshaft and connecting rod of Howo A7 Engine adopt high-strength cast iron materials with reinforced structural design. It features stable output, strong vibration resistance and impact resistance, adapting to continuous high-intensity operation in harsh mining, mountain and gravel road environments.

4.Low Maintenance Threshold & High Parts Versatility

The mechanical version of Howo A7 Engine has a simple structure without complex electronic post-processing systems. Most core parts are universal with SINOTRUK WD615 and D12 series, making global daily maintenance and emergency repair more convenient and efficient.

5.Mature Emission Technology

Covering Euro 2 to Euro 4 emission standards, Howo A7 Engine can meet the road traffic environmental regulations of most countries and regions, with strong market adaptability and wide application range.

Full Range Howo A7 Engine Spare Parts Supply

As a one-stop Howo A7 Engine supplier, we stock full-set original and OEM spare parts for all A7 engine versions (336HP, 371HP, 420HP), supporting global wholesale, retail and emergency repair orders:

1. Core Assembly Parts: Complete Howo A7 bare engine, cylinder block, cylinder head, crankshaft, camshaft, piston kit, connecting rod assembly, flywheel housing, full overhaul gasket kit
2. Fuel System Parts: Fuel injection pump, injector nozzle, diesel filter, high-pressure fuel pipe, fuel transfer pump
3. Intake & Exhaust Parts: Turbocharger, intercooler, intake manifold, exhaust manifold, air filter assembly
4. Cooling & Lubrication Parts: Water pump, oil pump, radiator, engine oil filter, cooling fan, thermostat 5. Electrical System Parts: Starter, alternator, engine wiring harness, sensors, glow plugs 6. Wear & Consumable Parts: Cylinder liner, valve set, bearing bushes, oil seals, sealing gaskets

We support OE number inquiry, real-time inventory check and 24-hour quotation for all Howo A7 Engine accessories.

FAQ

Q1:What engine models are equipped on the original HOWO A7 truck?

A1:The original HOWO A7 truck is mainly equipped with WD615 series (336HP/371HP) and D12 series (420HP) diesel engines, covering mechanical and electronic control power versions to adapt to different national emission standards.

Q2:Can I replace the old HOWO A7 engine with a new 420HP D12 engine?

A2:Cross-version replacement of HOWO A7 engine is feasible with minor modification of pipeline and bracket positions. Our technical team can provide free professional modification drawings and installation guidance.

Q3:What is the MOQ for HOWO A7 Engine and spare parts?

A3:The MOQ of complete HOWO A7 Engine is 1 unit, and all single A7 spare parts support 1-piece retail and mixed container shipment.

Q4:What export documents can you provide for HOWO A7 Engine orders?

A4:We can provide full set of export documents including commercial invoice, packing list, factory inspection certificate, CE certification and complete customs clearance materials for all HOWO A7 Engine orders.

Q5: Which HOWO A7 Engine version is best for mining heavy-load trucks?

A5:The 371HP WD615.47 and 420HP D12 versions of HOWO A7 Engine are the best choices for mining heavy-load vehicles, with stronger torque output and overload resistance.

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If you are a global SINOTRUK truck dealer, repair workshop, logistics fleet operator or engineering equipment supplier looking for reliable HOWO A7 Engine and spare parts wholesale partners, please contact us for inquiry. You can provide your required HOWO A7 engine power version, purchasing quantity, spare part OE numbers and destination port. Our sales team will send detailed quotation, parameter catalog and freight plan within 24 hours. We support long-term regional agent cooperation and customized OEM service for global clients.

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