Locomotive Valves

Specialized valves designed to meet the rigorous demands of locomotive applications, ensuring optimal engine functionality and efficiency.

Cylinder Liners

Precision-engineered liners to repair or replace the inner surfaces of engine cylinders, improving engine reliability and longevity.

Gaskets

Durable and reliable seals to prevent leaks and ensure seamless engine operation, contributing to peak performance.

Pistons and Piston Ring Sets

Robust pistons that transfer force from combustion gases to the crankshaft, supported by piston rings to seal the combustion chamber and prevent oil leakage.

Clutch Dowelling Assemblies

Essential for smooth power transfer in the transmission system, connecting the clutch to the drivetrain with precision.

Turbocharger Assemblies & Spare

Turbochargers boost engine power by increasing air intake in the combustion chamber. We offer both complete turbocharger assemblies and individual spare parts.

Fuel Filters

High-performance filters designed to eliminate contaminants from the fuel supply, ensuring cleaner combustion and enhanced engine efficiency.

Engine Bearings and Bushes

Designed to reduce friction and wear on critical engine components, enhancing engine efficiency and extending its operational lifespan.

Rocker-Arms and Rocker-Shafts

Key components in the valvetrain, efficiently transferring motion from the camshaft to the engine valves for optimal performance.

Water Pump Kits

Complete kits for maintaining and replacing water pumps, ensuring efficient coolant circulation and effective temperature regulation in engines.

Our Product Offerings

At Unotech Engineering, we are a leading Indian manufacturer, supplier, and exporter of locomotive spare parts for EMD, ALCO, GE/WABTEC, MAK, Wartsila, Sulzer, Pielstick, and B&W diesel engines. We supply OEM-quality diesel locomotive spare parts — engine bearings and bushes, crankshafts, connecting rods, cylinder liners, cylinder heads, pistons, piston rings, gaskets, valves, turbochargers, and water pump kits — trusted by railway operators, maintenance workshops, and procurement teams across the USA, Canada, the European Union, the Middle East, South America, and Africa.

Every component we deliver is sourced exclusively from Indian Railways & various other Global Railways approved vendors, manufactured in ISO 9001:2015 and IATF 16949:2016 certified facilities, and backed by rigorous inspection, material traceability, and complete export documentation. Whether you are maintaining a legacy EMD 567, a high-horsepower 710 series, or an ALCO 251, Unotech Engineering keeps your fleet running with minimal downtime, maximum reliability, and peak performance.

Comprehensive Range of High-Quality Products for the Railway Sector

Why Choose Unotech Engineering?

Indian & Global Railways Approved Vendors

All products are sourced from certified vendors approved by Indian & various Global Railways, guaranteeing adherence to quality standards.

Comprehensive Solutions

Our extensive product range ensures complete support for locomotive engine maintenance and repairs.

Precision Engineering

Every product is designed and manufactured with precision to withstand the toughest operational conditions.

Performance and Reliability

Our products are built to deliver exceptional performance, reducing downtime and maintenance costs

Customer-Centric Approach

We prioritize client satisfaction by offering tailored solutions for specific locomotive requirements

Our Product Offerings

Our products are compatible with a wide range of locomotive engines, including:

  • ALCO Locomotive Engines
  • EMD Locomotive Engines
  • MAK Engines
  • WARTSILA Engines
  • SULZER Engines
  • PIELSTICK Engines
  • B&W Engines

Locomotive Spare Parts Supplier & Manufacturer in India

Unotech Engineering supplies and manufactures OEM-quality locomotive spare parts for EMD, ALCO, GE/WABTEC, MAK, Wartsila, Sulzer and Pielstick engines. We sell to international customers worldwide, Indian Railways and Indian domestic customers, with ISO 9001:2015 and IATF 16949:2016 certified manufacturing and full export support.

What locomotive spare parts does Unotech Engineering supply?

We supply engine bearings and bushes, crankshafts, connecting rods, cylinder liners, cylinder heads, pistons and piston ring sets, gaskets, valves, rocker arms and shafts, turbocharger assemblies and spares, fuel filters, water pump kits, clutch dowelling assemblies and electrical components for EMD, ALCO and GE/WABTEC locomotives.

Do you supply EMD 645, EMD 710 and ALCO 251 engine parts?

Yes. We supply spare parts for EMD 567, 645 and 710 series engines (6, 8, 12, 16 and 20-cylinder configurations, including SD40-2, GP38-2 and SD70ACe models), ALCO 251 engines (1300 HP to 3600 HP) and GE 7FDL / GEVO series engines.

Do you sell to international customers?

Yes. We export locomotive spare parts to railway operators, maintenance workshops and procurement agencies in the USA, Canada, the European Union, the Middle East, South America, Africa and Asia, with complete export documentation and global shipping.

Do you supply parts to Indian Railways and Indian customers?

Yes. We are a Delhi-based supplier and manufacture through Indian Railways-approved vendors. We serve Indian domestic customers, railway maintenance organizations and Indian Railways supply chains with fast local delivery and domestic billing support.

Are your products approved by Indian & Global Railways approved vendors?

Yes. All our railway products are sourced exclusively from Indian Railways and various other global railway approved vendors, manufactured in ISO 9001:2015 and IATF 16949:2016 certified facilities, ensuring reliability, durability and compliance with the highest industry standards.

Do you manufacture locomotive spare parts or only supply them?

Both. We are a manufacturer, supplier and sourcing partner. We manufacture precision-engineered components through our certified partner facilities and can reverse engineer obsolete or non-production parts from a drawing or sample.

What quality checks do your parts go through?

Every part undergoes spectro-analysis of raw materials, dimensional inspection on CMM equipment, NDT (non-destructive testing), material traceability from certified mills, and final inspection with material test certificates and certificate of conformance.

What is your minimum order quantity (MOQ)?

MOQ varies by component and part number. Send us your part number, drawing or quantity and we will confirm exact pricing, MOQ and lead time within 24 hours on working days.

How long does delivery take?

Typical lead times are 4 to 16 weeks depending on the component and quantity required. Ready-stock standard parts ship faster. Bulk order and tender support is available for railway operators and procurement agencies.

Can I request a quote?

Yes. Contact us via the quote form, WhatsApp (+91 88007 24443), phone (+91 11 2331 2221) or email (info@unotechengineering.com) and our team will respond within 24 hours on working days.

Driving Excellence in Railway Solutions

Partner with Unotech Engineering for premium locomotive and railway solutions. Our team is ready to assist you with high-quality products and expert support. Contact us today to discuss your requirements or explore our extensive product range.