Cumwonder | Authorized Cummins Engine & Spare Parts Supplier

About Cumwonder

Chongqing Cumwonder Trading Co., Ltd. is an authorized Cummins dealer specializing in high-horsepower diesel engines and genuine spare parts.

Trusted Cummins Partner for Industrial Power

We are dedicated to delivering reliable, high-performance Cummins engines and components for the most demanding environments — from underground mining to large-scale construction sites.

Our product range includes engine models such as NT855, KTA19, KTA38, KTA50, QSK19, QSK38, and QSK50, tailored for applications in fracturing trucks, slime pumps, drilling machines, bulldozers, and more.

With comprehensive service support including engine overhauling, rebuilding, and repair, we ensure maximum uptime and performance for your machinery.

Authorized Cummins Dealer
Global Shipping & Support
Engine Rebuilding & Maintenance Services

Our Products

High-performance Cummins diesel engines and spare parts engineered for durability and power in extreme industrial conditions.

KTA19 Cummins Engine

For construction machinery, mining trucks, and fracturing applications.

Model: KTA19-C700
Power: 700 HP
Application: Bulldozer, Drill Truck

KTA38 Cummins Engine

High horsepower engine for heavy construction and mining equipment.

Power Range: 780–1500 HP
Displacement: 38L
Application: Excavators, Loaders

KTA50 Cummins Engine

Original Cummins engine for Belaz mining trucks and oilfield use.

Model: KTA50-C1600
Power: 1600 HP / 1193kW
Speed: 2100 RPM

QSK38/QSKTA38 Engine

Used in Liebherr and other construction machinery.

High-efficiency turbocharged
For heavy-duty applications
Global compatibility

Cummins NT855 Engine

NT855 Cummins Engine

Reliable mid-range engine for industrial and mobile equipment.

Proven durability
Widely supported
Easy maintenance

QSK50 Engine

QSK50 Cummins Engine

Ultra-high horsepower engine for mining and oilfield operations.

Over 1800 HP available
Advanced fuel system
Heavy-duty construction

Cummins Spare Parts

Genuine Cummins Spare Parts

Filters, pistons, injectors, gaskets, and more — all OEM quality.

100% compatible
Extended engine life
Global logistics support

Engine Rebuilding Service

Engine Overhauling & Repair

Professional reconditioning for KTA, QSK, and NT series engines.

Complete teardown & inspection
Performance restoration
Warranty included

Why Choose Cumwonder?

We deliver unmatched reliability, technical expertise, and global support for your industrial power needs.

Authorized Cummins Dealer

All engines and parts are sourced directly through Cummins distribution channels, ensuring authenticity and full warranty coverage.

Global Reach

We ship worldwide with reliable logistics partners, serving clients in mining, construction, and energy sectors across continents.

Expert Technical Support

Our team provides installation guidance, troubleshooting, and maintenance advice to keep your operations running smoothly.

Frequently Asked Questions

Get answers to common inquiries about our engines, parts, and services.

Are you an official Cummins dealer?

Yes, Chongqing Cumwonder Trading Co., Ltd. is an authorized Cummins dealer, providing genuine engines and spare parts with full documentation.

Do you offer engine rebuilding services?

Yes, we specialize in overhauling, rebuilding, and reconditioning Cummins KTA, QSK, and NT series engines to factory specifications.

What regions do you ship to?

We ship globally, including North and South America, Europe, Africa, the Middle East, Southeast Asia, and Central Asia.

Can you supply engines for Belaz trucks?

Yes, we supply original Cummins KTA50 engines for Belaz 75131 and 75139 mining dump trucks.

Do you provide technical support?

Yes, our engineering team offers installation guidance, troubleshooting, and maintenance recommendations for all our products.

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Cumwonder – Authorized Cummins Engine & Parts Supplier