Original Cummins Qsx156-Cylinder Turbocharged Diesel Engine – Powering Railway Maintenance Vehicles, Agricultural Tractors & Mining Loaders

• Customization: Available
• Certification: CCC, COP, ISO9001, CE, E-Mark, RoHS, TS16949
• Standard Component: Standard Component
• Model NO.: QSX15 6-Cylinder Turbocharged Diesel Engine
• Technics: Forging
• Material: Iron
• Type: Qsx15 6-Cylinder Turbocharged Diesel Engine
• Weight: 1,365 Kg
• Shipment: Sea or Air
• MOQ: 1 PCS
• Color: Black or Others
• Transport Package: Wooden
• Specification: 15 l
• Trademark: zhengwei
• Origin: USA/China
• Production Capacity: 500000
• Package Size: 100.00cm * 120.00cm * 150.00cm
• Package Gross Weight: 1365.000kg

Product Description

Product Overview

The Original Cummins  QSX15 is a high-performance 6-cylinder turbocharged diesel engine, engineered to deliver uncompromising power, durability, and efficiency across demanding industries. With a displacement of 15 liters and advanced turbocharging technology, this engine generates up to 675 hp (503 kW) and 2,800 Nm of torque, making it a versatile workhorse for construction machinery, agricultural equipment, mining trucks, and railway locomotives. Its robust design and intelligent features ensure reliable operation in extreme environments, from dusty construction sites to rugged mining terrains and heavy-haul railway operations.

Key Attributes

Key Specification	Details
Cylinders	6 in-line, turbocharged
Displacement	15 liters
Power Output	Up to 675 hp (503 kW)
Maximum Torque	2,800 Nm @ 1,500 rpm
Fuel System	XPI (Extreme Pressure Injection)
Turbocharger	Holset® variable-geometry
Emission Compliance	EPA Tier 4 Final, EU Stage V
Cooling System	Water-cooled (with optional air-to-air aftercooler)

Industry	Typical Applications	Key Benefits for Sector
Construction	Excavators, bulldozers, concrete pumps	High torque for heavy lifting, fuel efficiency for daily operations
Agriculture	Large tractors, combine harvesters	Efficient fuel use, reliable performance in dusty environments
Mining	Medium-sized haul trucks, loaders	Durable design for 24/7 operation, heat management in extreme conditions
Railway	Locomotives, track maintenance vehicles	Smooth power delivery, low vibration for passenger comfort

Key Features

6-Cylinder Turbocharged Power: Equipped with a Holset® variable-geometry turbocharger, the QSX15 optimizes air intake for maximum combustion efficiency. This technology enhances low-end torque by 15% compared to non-turbocharged engines, enabling quick acceleration for mining trucks and heavy construction equipment. The 6-cylinder configuration ensures smooth power delivery, reducing vibration and extending component life in continuous-operation scenarios like railway locomotives.
Industrial-Grade Durability: Built with a high-strength cast-iron block, forged steel crankshaft, and nitride-hardened cylinder liners, the  QSX15 withstands extreme loads and temperatures. It features a water-cooled exhaust manifold to manage heat in high-load applications, while replaceable wet cylinder liners simplify maintenance—critical for remote mining sites or agricultural fields where downtime is costly.
Fuel Efficiency & Emission Compliance: The QSX15 integrates Cummins' XPI (Extreme Pressure Injection) fuel system, which delivers fuel at ultra-high pressures (up to 2,000 bar) for precise atomization. This reduces fuel consumption by up to 8% compared to previous models, lowering operating costs for fleet operators. It meets global emission standards (EPA Tier 4 Final, EU Stage V), making it suitable for environmentally regulated regions.
Application-Specific Adaptability: Designed with flexible mounting options and customizable features, the  QSX15 adapts to diverse needs. For construction, it offers high torque at low speeds for excavators and bulldozers; for agriculture, it provides fuel efficiency for tractors and harvesters; for mining, it delivers sustained power for haul trucks; and for railways, it ensures reliable performance in locomotives and maintenance vehicles.

Packaging and Delivery

The  6-cylinder turbocharged diesel engine,s are carefully packaged to prevent any damage during transit. They are typically placed in sturdy cartons with appropriate cushioning materials to protect them from impacts and vibrations. Delivery options can vary, and customers can choose from methods such as express shipping for urgent requirements or more cost - effective sea or land freight for larger orders. The delivery process is coordinated to ensure that the   6-cylinder turbocharged diesel engine,s each the customers in a timely manner, minimizing any downtime for vehicle maintenance or repair.

Warranty

Cummins offers a warranty on these  6-cylinder turbocharged diesel engines, which provides customers with peace of mind. The exact terms of the warranty may vary depending on the region and the specific application. Generally, the warranty covers any manufacturing defects and ensures that in case of a problem, customers can get the  6-cylinder turbocharged diesel engine epaired or replaced as per the warranty conditions. This warranty reflects Cummins' confidence in the quality of its products.

Company Profile

Sichuan Zhengwei Power Technology Co.,Ltd. is a comprehensive and diversified enterprise which established in 2009. Headquartered in No. 388 Huanghe Road, Xindu District, Chengdu, Sichuan Province.The company specializes in diesel generator sets, Cummins engine assembly, Cummins pure parts sales and after-sales service. The company not only has a rich product line, including high-quality diesel generator sets and all kinds of pure accessories, but also provides a full range of after-sales service to ensure the stable operation of customers' equipment. In addition, with strong technical strength and rich experience, the company focuses on the maintenance of all kinds of construction machinery at home and abroad, and can provide customers with efficient and professional mechanical equipment maintenance services, solve all kinds of equipment failures, and ensure the normal production and operation of customers. 

Adhering to the corporate purpose of "Let customers get more value", the company will, provide customers with more and better products and services, and jointly open our better cooperation prospects!

Main Product

Production Process

Packaging & Shipping

Certifications

International Partners

FAQ

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Q: What's the lead time for orders?

A: Standard models ship in 15–30 days; customized units require 60-90days.

Q: Do you provide after-sales service?

A: Yes, We have a very comprehensive after-sales system.

Q: Can I request a customized parts?

A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?

A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?

A: Contact us via email/phone for a quote, then confirm with a PO.

 

Q: I'm not sure if this part fits my engine.

A: Please contact our customer service. We will help you identify or find the parts that fit your engine.

Q: I need other numbered parts, but they are out of stock in your store

A: You didn't want this part? Please contact us.If you can't find what you're looking for in store, it doesn't mean we're out of stock, The possible reasons are:

l The product was not put on the shelves in time

l The product link was invalid

l The keyword you searched for was incorrect

l Your part number machine model serial number was incorrect.

l Category restrictions, more optional models cannot be uploaded.

Therefore, please be sure to contact our customer service to inquiry whether the goods you need are actually in stock.l am confident that we can provide the products you need

 

Q: How long does it take to ship after payment?

A: After you make the payment,we usually need 3 business days to stock up and we will ship it to you.lf the parts you purchased are relatively rare, we will need longer time to stock them, but we will inform you via email.