Top HOWO Crankshaft Manufacturers in China 2026

William
May 18, 2026

HOWO Crankshaft Manufacturers in China

Table of Contents

• Why Crankshafts Matter in Heavy-Duty Diesel Engines

• Common HOWO Crankshaft Models

• OEM vs Aftermarket HOWO Crankshafts

• Top HOWO Crankshaft Manufacturers in China

• Qingdao Kailai

• SINOTRUK Parts

• WEICHAI Power

• Bohai Automotive

• Jinan Heavy Truck Engine Parts

• How to Choose a Reliable HOWO Crankshaft Supplier

• Common Problems with Low-Quality Crankshafts

• WD615 Crankshaft Buying Guide

• Conclusion

As HOWO trucks continue expanding across Africa, the Middle East, and South America, the demand for heavy-duty engine replacement parts is increasing rapidly. Among all core engine components, the crankshaft is one of the most important and technically demanding parts in the entire diesel engine system.

A high-quality crankshaft directly affects:

• Engine balance

• Power transmission

• Bearing lifespan

• Engine vibration

• Overall engine durability

For distributors and engine rebuilding workshops, choosing the wrong crankshaft supplier can lead to severe engine failures such as bearing damage, crankshaft cracking, overheating, or even complete engine breakdown.

Today, China has become one of the world’s largest production centers for HOWO crankshafts thanks to its mature forging industry, diesel engine ecosystem, and strong heavy truck supply chain.

This article introduces some of the most reliable HOWO crankshaft manufacturers and suppliers in China for 2026.

Why Crankshafts Matter in Heavy-Duty Diesel Engines

The crankshaft converts the piston’s up-and-down movement into rotational power.

In heavy-duty HOWO trucks operating under:

• Long-distance transportation

• Overloading conditions

• Mining operations

• High-temperature environments

the crankshaft must withstand enormous stress and continuous vibration.

This is why material quality, heat treatment, and dynamic balancing are extremely important.

Common HOWO Crankshaft Models

The most common HOWO crankshaft models in overseas markets include:

Among these, 161560020029 remains one of the highest-demand HOWO crankshaft models in African aftermarket repair markets.

OEM vs Aftermarket HOWO Crankshafts

Before importing crankshafts from China, buyers should understand the differences between OEM and aftermarket products.

For many overseas importers, high-grade aftermarket crankshafts provide the best balance between price and durability.

Top HOWO Crankshaft Manufacturers in China

Qingdao Kailai

Qingdao Kailai is one of the key suppliers specializing in heavy-duty diesel engine components and HOWO crankshaft systems for export markets.

The company mainly supplies:

• WD615 crankshafts

• D12 crankshafts

• AZ1246020014 crankshafts

• 161560020029 crankshafts

• Engine overhaul kits

• Cylinder blocks and liners

Located in Shandong Province, Qingdao Kailai benefits from close proximity to the SINOTRUK and WEICHAI industrial ecosystem, allowing strong integration with China’s heavy truck supply chain.

Their crankshafts are widely exported to:

• Nigeria

• Ghana

• Algeria

• Tanzania

• UAE

• Peru

Many overseas buyers prefer Qingdao Kailai because the company focuses heavily on aftermarket engine rebuilding markets where stable quality and competitive pricing are more important than simply offering the lowest price.

Main Advantages:

• Stable forging and casting quality

• Precision CNC machining

• Dynamic balancing inspection

• Export-focused packaging

• OEM/ODM support

• Flexible MOQ

• Strong African market experience

SINOTRUK Parts

Sinotruk is the original manufacturer behind HOWO trucks and genuine HOWO engine systems.

Their crankshafts are mainly used for:

• WD615 engines

• D12 engines

• MC11 engines

• MC13 engines

Compared with aftermarket suppliers, genuine SINOTRUK crankshafts usually provide:

• Better dimensional precision

• More stable metallurgy

• Higher compatibility consistency

However, genuine products are generally more expensive.

Main Advantages:

• Original factory specifications

• Global dealer network

• Strong technical support

• Stable product quality

  
  

WEICHAI Power

Weichai Power is one of China’s largest diesel engine manufacturers and an important supplier in the heavy truck industry.

Their crankshaft systems are widely used in:

• HOWO trucks

• SHACMAN trucks

• Construction machinery

• Mining equipment

WEICHAI products are known for:

• Strong durability

• Stable heat treatment

• Excellent dynamic balancing

Main Advantages:

• Advanced forging technology

• Automated production lines

• Strong OEM engineering capability

• Large-scale manufacturing

Bohai Automotive

Bohai Automotive is an important supplier in China’s commercial vehicle engine industry.

The company produces:

• Crankshafts

• Pistons

• Cylinder liners

• Engine combustion components

Their products are widely used in heavy-duty diesel engine systems.

Main Advantages:

• Mature engine component technology

• Strong R&D capability

• Stable OE support experience

• Large production capacity

Jinan Heavy Truck Engine Parts

Jinan is the core city of China’s HOWO truck supply chain.

Many companies in Jinan specialize in:

• WD615 crankshafts

• D12 engine parts

• Engine rebuild kits

• Heavy truck overhaul components

These suppliers mainly serve:

• African distributors

• Middle East repair markets

• South American importers

Main Advantages:

• Strong HOWO ecosystem

• Fast supply capability

• Competitive aftermarket pricing

• Extensive export experience

How to Choose a Reliable HOWO Crankshaft Supplier

When importing HOWO crankshafts from China, buyers should focus on several critical factors.

1. Forging or Casting Process

High-quality crankshafts usually use:

• Forged steel

• Advanced heat treatment

• Precision machining

Cheap low-end crankshafts may suffer from:

• Cracking

• Poor hardness

• Weak fatigue resistance

2. Dynamic Balancing

Poor balancing can cause:

• Engine vibration

• Bearing wear

• Crankshaft failure

Professional suppliers usually conduct dynamic balancing inspection before shipment.

3. Heat Treatment Quality

Heat treatment directly affects:

• Surface hardness

• Wear resistance

• Service lifespan

Always confirm:

• Hardness standards

• Nitriding treatment

• Metallurgical inspection

4. Export Packaging

Heavy crankshafts require professional packaging because of their weight.

Reliable suppliers usually provide:

• Anti-rust oil coating

• Thick cartons

• Wooden cases

• Reinforced pallets

This is especially important for African shipping routes.

Common Problems with Low-Quality Crankshafts

Low-quality crankshafts often cause major engine problems.

Common issues include:

• Crankshaft cracking

• Main bearing damage

• Excessive vibration

• Journal wear

• Oil pressure instability

Many low-cost suppliers reduce production costs by using inferior raw materials or poor machining standards.

This is why experienced buyers usually prioritize stable suppliers instead of chasing the lowest price.

WD615 Crankshaft Buying Guide

The WD615 engine remains one of the most widely used HOWO engines worldwide.

Before purchasing a WD615 crankshaft, buyers should confirm:

• Part number

• Bearing size

• Gear configuration

• Dynamic balancing

• Forged or cast structure

The most popular WD615 crankshaft model in export markets remains:

161560020029

For higher horsepower HOWO trucks, buyers commonly purchase:

AZ1246020014

used in D12 engine systems.

Many importers also purchase:

• Main bearings

• Connecting rod bearings

• Cylinder liners

• Pistons

• Gasket kits

together with crankshafts to reduce shipping costs and simplify inventory management.

Conclusion

China remains the global center for HOWO crankshaft manufacturing thanks to its mature diesel engine supply chain and strong heavy truck ecosystem.

Among export-oriented suppliers, Qingdao Kailai stands out for its strong aftermarket rebuilding experience, stable machining quality, and competitive pricing for international distributors.

For importers and engine rebuilding businesses, choosing the right crankshaft supplier is not only about reducing costs — it is about ensuring long-term engine reliability, customer trust, and sustainable business growth.