Introduction – From a Small Truck Brand to a Global Engine Builder

Back in 1984, Great Wall Motors (GWM) was just a modest Chinese truck maker. Nobody expected it to become one of the biggest auto groups in China.
Fast forward a few decades — now it owns well-known brands like Haval, Tank, and ORA, and exports vehicles to over 170 countries.

One thing that sets GWM apart is its strong in-house powertrain capability. While GWM designs and assembles most of its engines internally, it also works closely with certified suppliers and distributors — ensuring every part, from bearings to sensors, meets global standards.

About GWM and Its Powertrain Division

From Assembly Lines to Full Control

GWM started small, producing basic trucks in Baoding, Hebei. Over time, they added SUVs, pickups, even electric models. Unlike some automakers who fully rely on external engine suppliers, GWM decided early on to develop and assemble its own core powertrains while cooperating with key component makers. The logic was simple — if you control your powertrain, you control your destiny.

Vertical Integration Done the GWM Way

It’s not just a fancy phrase. Vertical integration for GWM means keeping key steps like casting, machining, and testing closely coordinated — mostly within its own facilities, and partly through certified component partners.

This setup saves a lot of back-and-forth time between factories and makes it easier to tweak designs. As one engineer once said in an interview, “We can fix an idea in the morning and test it before dinner.” That’s speed most suppliers can’t match. Exporters like MotorTec also benefit from that control. Since GWM keeps specs consistent, sourcing genuine engine parts overseas becomes smoother and less risky.

Where GWM Engines Are Made

China — the Core of GWM’s Powertrain Map

Three major plants form GWM’s backbone:

50. Baoding Powertrain Plant — the “heart” of GWM’s R&D. This is where gasoline and hybrid engines for the Haval H6 and Tank 300 are assembled.
50. Chongqing Plant — focuses on diesel and hybrid DHT systems. It’s also where many Wingle and POER pickup engines roll off the line.
50. Zhangjiagang Plant — handles precision machining and aluminum casting, especially for lightweight components.

Together, they produce over a million engines a year. Walking through one of those workshops, you’d see robotic arms, laser welders, and a constant hum of conveyors moving cylinder heads like clockwork.

Overseas Expansion

GWM isn’t stopping in China. The Tula Plant in Russia is its first overseas vehicle and engine factory, serving Eastern Europe. In Thailand and Brazil, local assembly centers handle final builds to avoid long shipping times and import taxes — smart moves for any global automaker.

Types of Engines Built by GWM

Gasoline Engines

The 4N20 2.0L turbo is probably GWM’s best-known motor. It powers models like the Haval H6 and Tank 500, pairing good torque with clean emissions. It’s tuned for quiet cruising but still pushes out strong acceleration. It’s also surprisingly fuel-efficient — real-world drivers often report about 7.5–8.0 L/100 km, not bad for a two-ton SUV.

Diesel Engines

If you’ve seen the GWM POER or Wingle 7, you’ve seen GWM’s diesel side.
Those engines are built for heavy loads — farmers, construction crews, and long-haul drivers love them. Some Australian users even joke that their trucks “drink less than they do,” thanks to the engine’s low fuel burn and reliable pull.

Hybrid and Electric Powertrains

GWM’s DHT (Dual Hybrid Transmission) is its pride and joy. It merges a gasoline engine with one or two electric motors, switching between power modes automatically. Drivers rarely notice the change — it’s that smooth.
You’ll find it in models like the Haval H6 HEV and Tank 500 Hybrid.

Technology and R&D Behind the Scenes

Innovation that Feels Practical

GWM engineers talk less about fancy terms and more about “how to make the engine last.” They test low-friction coatings, tighter piston tolerances, and better thermal flow. Their 4N20 series hits about 38% thermal efficiency, matching Toyota’s global hybrid engines. Not bad for a company that started making pickup trucks.

Testing Until It Breaks (and Fixing It Again)

Every GWM engine goes through more than 10,000 hours of endurance tests — from -30°C cold starts in Heilongjiang to 45°C desert drives in Xinjiang. Only when it survives those extremes does it get mass-produced. That’s why the brand’s engines are gaining trust abroad.

Quality Control and Certification

Hands-on Inspections, Not Just Robots

At each plant, components are tagged and tracked through a digital system.
If a bearing fails during testing, engineers can trace it back to the exact machine and shift it came from. That kind of traceability is rare even among bigger global brands.

Certifications and Standards

All plants follow ISO 9001 and IATF 16949 systems. Car engines meet Euro 6 and China VI standards — crucial for European, Australian, and Middle Eastern exports. Simply put, GWM can sell in tough markets without worrying about compliance headaches.

Suppliers, Partners, and Parts

Homegrown Suppliers

GWM works with over 500 domestic factories, many certified under TS16949 or ISO9001 — the same pool used by exporters like MotorTec. These suppliers provide ECUs, turbochargers, and ignition parts that fit GWM engines perfectly.

Global Tech Partners

To boost performance and efficiency, GWM teams up with Bosch, Continental, and AVL. Bosch handles fuel systems, AVL assists with engine simulation. It’s a mix of Chinese production and European know-how — a combination that works.

Aftermarket and Distribution

Outside China, genuine and aftermarket parts are mostly handled by MotorTec.

We carry over 100,000+ SKUs, from filters and belts to bearings and engine mounts.
Their “bumper-to-bumper” catalog helps importers stock everything without juggling multiple suppliers.

Market Response and Reputation

In countries like Australia, Chile, and South Africa, GWM engines are seen as solid and cost-effective. Drivers praise their torque for towing boats and trailers, while fleet owners like the low running costs. Sure, they’re not the flashiest powertrains, but they get the job done — and that’s what most buyers care about.

Conclusion – What’s Next for GWM Engines

From Baoding to Bangkok, GWM has proven that Chinese-built engines can compete globally.

The next step is hybrid and electric integration — not replacing combustion entirely, but blending both worlds. As energy tech evolves, GWM’s R&D focus will likely shift toward smarter thermal systems and compact hybrid units. For distributors or workshop owners, getting reliable GWM engine parts is easier than ever.

MotorTec continues to supply verified, well-packaged parts — filters, belts, bearings, timing kits — shipped safely worldwide. Our team often says, “We make Chinese auto parts simple again,” and we mean it.

FAQ

Q: Are GWM engines reliable?

A: Yes, they’ve proven tough in both hot and cold climates. With normal service, many last well beyond 200,000 km.

Q: What oil should I use for GWM engine?

A: Stick to good-quality synthetic oil (API SN or ACEA A5/B5). It keeps the engine smooth, especially for turbo models.

Q: Can I buy GWM engine parts abroad?

A: Of course. Exporters like MotorTec supply genuine and aftermarket GWM parts to more than 60 countries.