Engine Services for High, Medium & Low-Speed Engines

40+ Years of Expertise

Precision engineering for critical industries.

Fast, Reliable Service

Minimising downtime, maximising performance.

Official MAN Partner

Trusted for expert engine servicing.

caterpillar engines

Comprehensive Solutions for Leading Engine Brands

At STM Engineering, we provide expert servicing, diagnostics, and maintenance for a full range of engines from leading manufacturers. Our specialist technicians ensure that your high-speed, medium-speed, and low-speed engines perform efficiently and reliably across marine, industrial, and power generation applications.

Our Core Services for Multi-Brand Engines

Repair: Bespoke Solutions for All Engine Types
  • Expert Diagnostics and Repairs: We service and repair engines across multiple manufacturers, offering both on-site and workshop-based solutions. 
  • Multi-Brand Expertise: Whether it’s a Caterpillar C32, Cummins QSK60, or Wärtsilä medium-speed engine, our team has the knowledge and tools to handle complex systems, minimising downtime. 
Overhaul: Extending Life and Reliability
  • Complete Overhaul Services: We specialise in full engine overhauls, covering fuel system refurbishment, turbocharger rebuilding, and component replacements. 
  • Engine Reconditioning: Our detailed inspections and advanced servicing techniques restore engine performance and extend operational lifespan. 
Recertification: Compliance for All Brands 
  • Industry Compliance: We perform recertification to ensure your equipment meets all operational and safety regulations. 
  • Detailed Reporting: We provide comprehensive documentation to support compliance and audit requirements. 
Upgrades: Operational Enhancing Performance and Efficiency
  • Custom Engine Modifications: We offer performance upgrades, emissions reductions, and dual-fuel conversions. 
  • Component Enhancements: We improve pumps, cooling systems, and safety features, ensuring your equipment meets evolving operational demands. 
Parts and Spares: Reliable Supply and Support
  • Extensive Inventory: We source OEM and aftermarket parts for a wide range of engine brands. 
  • Fast Turnaround: Our logistics support ensures timely delivery of components to minimise downtime. 

Engines We Service

High-Speed Engine Services 

Specialists in servicing high-speed engines, ensuring peak performance and reliability. 

Brands we service include: 

  • MAN 
  • Volvo 
  • Scania 
  • Cummins 
  • Caterpillar 
  • Perkins 
  • Poyuard 
  • Gardner 
Medium-Speed Engine Services 

Providing specialist support for medium-speed engines used in power generation, industrial applications, and commercial shipping. 

Brands we service include: 

  • Mirrlees Blackstone 
  • Wärtsilä 
  • Ruston 
  • Bergen 
  • MAK 
  • Sulzer 
  • MAN B&W 
  • Deutz 
  • Nohab 
  • Polar 
Low-Speed Engine Services 

Low-speed diesel engines power some of the largest vessels and industrial plants. STM Engineering provides a full suite of maintenance and servicing solutions for these heavy-duty engines. 

Services Offered: 

  • In-frame and out-of-frame overhauls 
  • Cylinder head and piston servicing 
  • Crankshaft and bearing inspections 
  • Component refurbishment for extended operational life 
Why Choose STM Engineering for MAN Engines? 
  • Multi-Brand Expertise – Decades of experience across high-speed, medium-speed, and low-speed engines. 
  • Tailored Solutions – Custom maintenance plans for maximum performance and extended engine life. 
  • Nationwide & Offshore Support – We provide service across marine, offshore, and industrial sectors. 
  • OEM & Aftermarket Parts Available – Rapid supply of essential components to minimise downtime.