WD12C400-21 Marine Gearbox | High efficiency and reliability, designed specifically for the power systems of medium-sized merchant ships and workboats.

★ Introduction of Marine Main Engines:

High transmission efficiency: Optimized gear design achieves up to XX% efficiency, saving fuel.

Superior reliability: Heavy-duty bearings and hardened gears ensure adaptability to harsh sea conditions.

Easy maintenance: Modular design facilitates maintenance and reduces total lifecycle costs.

Wide compatibility: Perfectly matches mainstream marine diesel engines from 300 to 400 hp (such as Weichai, MAN, Caterpillar, etc.).

Compact design: Saves engine room space and facilitates layout.

Quiet operation: Advanced vibration and noise reduction technology.

★ Perfectly matched with Hangzhou Gearboxes:

Our marine engines are perfectly matched with Hangzhou Gearboxes, making them ideal for our customers' vessels.

High Transmission Efficiency: "Utilizing Hangzhou Gearbox's unique gear shaping and heat treatment processes, transmission 

efficiency reaches XX%, surpassing the industry average and directly reducing your operating fuel consumption."

Superior Reliability: "Core components originate from Hangzhou Gearbox's independent supply chain system, undergoing 

millions of hours of rigorous marine testing, with a design life far exceeding industry standards."

Easy Maintenance: "Inheriting Hangzhou Gearbox's classic modular design philosophy, maintenance tools are universal, and 

service support from Hangzhou Gearbox-certified technicians is available in major ports worldwide."

Wide Compatibility: "Based on Hangzhou Gearbox's deep compatibility database with major global marine diesel engine 

manufacturers (such as Weichai, Shaanxi Blower, MAN, and Caterpillar), seamless integration with your engines is ensured."

Low Total Life Cycle Cost: "Hangzhou Gearbox's global spare parts centers ensure parts supply for over 20 years, and a 

transparent pricing system makes maintenance costs controllable, resulting in a leading total cost of ownership."

★ Details Display of Marine Main Engines:

★Core Attribute Table of WD12C400-21 Marine Main Engine

★ Factory Real Shot of Marine Main Engines:

★ Why Choose Us