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Impeccable Leader in Marine & Train Diesel Engine Parts

Xiamen Union Spares Ltd. is a trusted Chinese manufacturer and supplier of high-performance diesel engine components. Delivering reliability, precision, and global service for marine, locomotive, and industrial applications.

About Xiamen Union Spares Ltd.

Xiamen Union Spares Ltd. is an experienced and professional manufacturer and supplier for diesel engine spare parts in China. We offer a full line of diesel engine components including cylinder heads, cylinder liners, connecting rods, pistons, bearings, piston rings, valves, and more.

With years of experience and a commitment to quality, we have gained a strong reputation both domestically and internationally as a reliable supplier of high-performance engine parts for marine, locomotive, and industrial applications.

Industrial Expertise

Specialized in diesel engine components

Global Reach

Serving clients worldwide

Marine Diesel Engine Components

Our Product Range

Comprehensive selection of high-quality diesel engine spare parts designed for durability, precision, and optimal performance in marine, locomotive, and industrial environments.

Connecting Rod
Diesel Engine

Connecting Rod

High-strength forged connecting rods for marine and locomotive diesel engines, precision-machined for optimal performance and durability.

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Cylinder Liner
Marine

Cylinder Liner

Precision-engineered cylinder liners for diesel engines, offering excellent wear resistance and thermal stability in demanding marine applications.

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Piston
Engine

Piston

High-performance pistons designed for optimal combustion efficiency, thermal management, and long service life in heavy-duty diesel engines.

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Piston Carrier
Component

Piston Carrier

Robust piston carriers engineered for reliable operation in high-pressure diesel engine environments, ensuring optimal piston alignment and performance.

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NVD36 Piston
Specialty

NVD36 Piston

Specialized piston design for NVD36 diesel engines, featuring advanced cooling channels and optimized crown geometry for maximum efficiency.

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Axle Box Housing
Casting

Axle Box Housing

Heavy-duty axle box housings for locomotive applications, precision-cast for strength and reliability in demanding rail transport environments.

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Crankshaft
Core Part

Crankshaft

Precision-forged crankshafts for diesel engines, heat-treated and ground to exacting tolerances for smooth operation and long service life.

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Valve Seat
Valve

Valve Seat

High-temperature resistant valve seats for diesel engines, engineered for optimal sealing and longevity in high-cycle combustion environments.

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Camshaft
Timing

Camshaft

Precision-ground camshafts for diesel engines, ensuring accurate valve timing and optimal engine performance across various operating conditions.

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Bearing Bracket
Support

Bearing Bracket

Robust bearing brackets designed for secure mounting and alignment of engine components, ensuring smooth operation and reduced vibration.

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Bolt
Fastener

Bolt

High-tensile bolts for diesel engine assembly, manufactured to exacting standards for critical applications requiring maximum strength and reliability.

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Rocker Arm
Valve Train

Rocker Arm

Precision-forged rocker arms for diesel engines, designed for optimal valve actuation and long-term reliability in high-stress environments.

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Why Choose Union Spares?

Our commitment to quality, precision engineering, and customer satisfaction sets us apart in the diesel engine components industry.

Quality Assurance

Rigorous quality control processes ensure every component meets or exceeds industry standards for performance and reliability.

Manufacturing Expertise

Years of experience in casting, forging, and precision machining of diesel engine components for marine and locomotive applications.

Global Service

Worldwide distribution network ensures timely delivery and support for customers across multiple continents and industries.

Certified Standards

Products manufactured in compliance with international quality standards, ensuring reliability and performance in critical applications.

15+
Years Experience
50+
Countries Served
1000+
Products Available
98%
Customer Satisfaction

Latest News & Updates

Stay informed about our latest product developments, manufacturing milestones, and industry insights.

May 18, 2020

EMD645 Cylinder Head Introduction

Xiamen Union Spares Ltd. manufactures EMD645 cylinder heads with advanced cooling channels and optimized valve geometry for maximum efficiency in marine applications.

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March 23, 2020

Successful Production Development of Camshafts

We have successfully developed and launched production of high-precision camshafts for locomotive diesel engines, expanding our product range.

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March 23, 2020

PIESTICK PC2-5L Crankshaft in Stock

PIESTICK PC2-5L crankshafts are now available in stock for immediate shipment, ensuring minimal downtime for our customers.

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Get in Touch

If you are interested in our products or would like to discuss your specific requirements, please contact us through our official website.

Address

Room 202, Jinshan Riches Bld, Fangzhong Road 2370, Huli District, Xiamen, 361009, China

Phone

86-15160052011

86-0592-5144000

Contact Person

Mr. Chen

Contact Us

For inquiries about our diesel engine spare parts, please visit our official website to get in touch with our sales team.

We respond to all inquiries promptly and provide technical support for our products.

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