Diesel Engine

Diesel Engine Manufacturer & OEM Supplier in China

We specialize in manufacturing diesel engines for industrial and power applications, providing reliable power solutions for generator sets, marine propulsion, construction machinery, agricultural equipment, and industrial power systems. Our products are trusted by OEM manufacturers, distributors, and engineering contractors worldwide.

Why Choose Our Diesel Engine

Designed for Continuous Operation
Our engines use pressure lubrication, closed water cooling, and precision-balanced rotating parts to maintain stable output during long-hour operation, making them suitable for continuous power generation and industrial equipment.

Lower Fuel Consumption
The direct injection fuel system improves combustion efficiency, delivering strong low-speed torque while reducing fuel consumption and operating costs for daily use.

Durable Engine Structure
High-strength cast iron cylinder blocks, reinforced crankshafts, and wear-resistant internal components are designed to withstand high loads and demanding working environments.

Easy Maintenance
A modular engine design allows quick replacement of filters, injectors, belts, and other service parts, reducing maintenance time and equipment downtime.

OEM Manufacturing Support
Engine speed, cooling system, air intake, starting method, accessories, branding, packaging, and documentation can all be customized for different equipment manufacturers and distributors.

Applications

Generator Sets

Provides reliable standby and prime power for factories, hospitals, data centers, telecom stations, hotels, and commercial buildings.

Marine Equipment

Delivers dependable propulsion power for fishing boats, cargo vessels, workboats, and inland ships.

Construction Machinery

Powers excavators, loaders, cranes, rollers, and other heavy equipment for demanding construction applications.

Agricultural Machinery

Suitable for tractors, harvesters, irrigation pumps, and other agricultural equipment with reliable and fuel-efficient performance.

Industrial Equipment

Drives air compressors, water pumps, mining machinery, and various industrial equipment requiring continuous power.

Main Components

Component	Function
Cylinder Block	Provides a rigid structure to support all major engine components and withstand high combustion pressure.
Cylinder Head	Forms the combustion chamber and supports the intake, exhaust, and cooling systems.
Pistons	Compress air and convert combustion energy into mechanical force.
Connecting Rods	Transfer piston force to the crankshaft for efficient power transmission.
Crankshaft	Converts reciprocating motion into rotary power to drive connected equipment.
Camshaft	Controls valve timing to improve combustion efficiency and engine performance.
Fuel Injectors	Deliver fuel precisely to improve power output, fuel economy, and combustion efficiency.
Intake & Exhaust Valves	Control airflow to ensure efficient combustion and stable engine operation.

Technical Specifications

Model	HD6126ZLC2	HD6126ZLC5	HD6126ZLC6	HD6126IZLC	HD6126IZLC1
Engine Type	Water-cooled, In-line, Four-stroke, Dry Cylinder Liner, Direct Injection	Water-cooled, In-line, Four-stroke, Dry Cylinder Liner, Direct Injection	Water-cooled, In-line, Four-stroke, Dry Cylinder Liner, Direct Injection	Water-cooled, In-line, Four-stroke, Dry Cylinder Liner, Direct Injection	Water-cooled, In-line, Four-stroke, Dry Cylinder Liner, Direct Injection
Rated Power / Speed	176kW /1500rpm 176kW /1800rpm	208kW /2100rpm 205kW /1800rpm	225kW /2100rpm	258kW /1800rpm	288kW /1800rpm
Air Intake	Turbocharged & Intercooled	Turbocharged & Intercooled	Turbocharged & Intercooled	Turbocharged & Intercooled	Turbocharged & Intercooled
Number of Cylinders	6	6	6	6	6
Bore × Stroke (mm)	126 × 130	126 × 155	126 × 155	126 × 155	126 × 155
Compression Ratio	16:1	16.5:1	16.5:1	16.5:1	16.5:1
Exhaust Temperature	≤550°C	≤550°C	≤550°C	≤550°C	≤550°C
Firing Order	1-5-3-6-2-4	1-5-3-6-2-4	1-5-3-6-2-4	1-5-3-6-2-4	1-5-3-6-2-4
Fuel Consumption	≤215 g/kWh	≤197 g/kWh	≤197 g/kWh	≤197 g/kWh	≤197 g/kWh
Displacement	9.726 L	11.6 L	11.6 L	11.6 L	11.6 L
Cooling Method	Closed Water Cooling	Closed Water Cooling	Closed Water Cooling	Closed Water Cooling	Closed Water Cooling
Rotation Direction	Counterclockwise (Viewed from Power Output End)	Counterclockwise (Viewed from Power Output End)	Counterclockwise (Viewed from Power Output End)	Counterclockwise (Viewed from Power Output End)	Counterclockwise (Viewed from Power Output End)
Lubrication Method	Pressure & Splash Combined	Pressure & Splash Combined	Pressure & Splash Combined	Pressure & Splash Combined	Pressure & Splash Combined
Starting Method	Electric Start	Electric Start	Electric Start	Electric Start	Electric Start
Net Weight	950 kg	1000 kg	1000 kg	1000 kg	1000 kg

Manufacturing & Quality Control

Every Diesel Engine is manufactured under a standardized quality management system to ensure reliable performance and consistent product quality.

01/

Raw Material Inspection
Critical components including cylinder blocks, crankshafts, cylinder heads, and connecting rods are inspected for material quality, hardness, and dimensional accuracy before production.

02/

Precision Machining
Advanced CNC machining centers maintain tight tolerances on key engine parts, improving assembly precision, sealing performance, and long-term durability.

03/

Assembly Inspection
Experienced technicians inspect valve clearance, injection timing, bearing clearance, and tightening torque throughout the assembly process to ensure reliable engine performance.

04/

Performance Testing
Each engine is tested for starting performance, oil pressure, cooling efficiency, exhaust temperature, vibration, noise, and leakage before leaving the production line.

05/

Full-Load Testing
Every completed engine operates under rated load to verify power output, fuel consumption, and continuous running stability before shipment.

06/

Final Inspection
The engine appearance, accessories, identification labels, documentation, and packaging are checked to ensure every unit is complete, traceable, and ready for installation.

OEM & Custom Solutions

We provide flexible OEM and ODM services for equipment manufacturers, distributors, and engineering contractors.

Engine Configuration

Rated power, engine speed, air intake, cooling system, starting method, and control system can be customized to match different equipment and operating environments.

Brand Customization

Customer logos, engine colors, nameplates, labels, instruction manuals, and packaging designs can be produced according to your brand requirements.

Optional Accessories

Radiators, silencers, fuel tanks, batteries, air filters, flexible couplings, spare parts kits, maintenance tools, and other accessories can be supplied together with the engine.

Packaging & Shipping

Each engine is coated with anti-rust oil, wrapped in moisture-proof film, fixed on a reinforced steel or wooden base, protected with shock-absorbing materials, and packed in a fumigation-free plywood case to minimize damage during international transportation.

Complete export documents, including the commercial invoice, packing list, bill of lading, certificate of origin, and inspection reports, are provided, with EXW, FOB, CFR, and CIF terms available.

diesel-powered-engined9656.jpg (800×800)

Ordering Process

Step 1 Submit your engine model or application requirements.
Step 2 Receive technical recommendations and a detailed quotation.
Step 3 Confirm specifications and Proforma Invoice.
Step 4 Production begins after deposit payment.
Step 5 Complete quality inspection and full-load testing.
Step 6 Arrange shipment and provide export documents.
Step 7 Receive after-sales technical support and spare parts service.

Frequently Asked Questions

Q: What is your MOQ?

A: The minimum order quantity is 1 unit, and bulk orders receive more competitive pricing.

Q: What payment methods do you accept?

A: We usually accept T/T, L/C at sight, and other mutually agreed payment methods.

Q: Which trade terms are available?

A: EXW, FOB, CFR, CIF, and other Incoterms can be arranged according to customer requirements.

Q: What is the delivery time?

A: Stock models can be shipped within 2 days, while customized orders generally require 15–30 working days.

Q: Can you provide OEM services?

A: Yes, we support customized branding, technical configurations, packaging, and private label manufacturing.

Q: How do you ensure product quality?

A: Every engine undergoes raw material inspection, precision machining, assembly inspection, performance testing, full-load testing, and final inspection before shipment.

Q: What certifications are available?

A: ISO 9001, CE certification, factory test reports, and third-party inspection reports can be provided upon request.

Q: How is the engine packaged?

A: Each engine is protected with anti-rust treatment, moisture-proof wrapping, reinforced internal supports, and a fumigation-free plywood export case suitable for sea transportation.

Q: Can spare parts be supplied after purchase?

A: Yes, we provide genuine spare parts and long-term technical support to ensure reliable operation throughout the engine's service life.

Q: Can I visit your factory before placing an order?

A: Yes, factory visits and online video inspections are welcome before cooperation.uilt to withstand high compression ratios and heavy-duty applications, diesel engines excel in demanding environments. Their rugged construction and reinforced components ensure longevity and reduce maintenance costs. With diesel engines, reliability and performance go hand in hand.

As one of the most professional diesel engine manufacturers and suppliers in China, our products have good reputation in the market. We warmly welcome you to wholesale advanced diesel engine in stock here from our factory. If you have any enquiry about cooperation, please feel free to email us.