Written by Kevin Orton, Business Development Director at Unipart.
The UK rail sector is currently navigating a ‘perfect storm’ of fiscal constraint and environmental accountability. As the mandate for decarbonisation intensifies alongside an urgent need for radical cost efficiencies, the traditional ‘ship-to-repair’ model has become an expensive relic of the past. For UK train manufacturers, fleet owners, and operators, the logistical burden of sending safety-critical components overseas for overhaul represents a significant drain on capital and a major hurdle to achieving net zero targets. In this climate, moving toward an agile, circular economy is no longer just an operational preference; it is a strategic necessity for ensuring domestic network resilience and long-term sustainability.
As a leading partner across the asset lifecycle, Unipart is redefining the MRO (Maintenance, Repair, and Overhaul) framework. By marrying world-class engineering, digital technologies and manufacturing with a circular mindset, we are empowering global partners to localise their service footprints. This isn’t merely a logistical adjustment; it is a transformative strategy designed to ensure network resilience and long-term sustainability in an evolving market.
The power of localisation: Supporting global OEMs in local territories
For many international rail manufacturers and maintainers, the UK is a vital market. Yet managing the maintenance of complex systems such as Traction Transformers, Oil Coolers, Power Electronics, HVAC, Gearboxes, Bogies and Final Drives from a distance presents immense challenges. Traditionally, rail components might travel thousands of miles back to a home factory for servicing.
Unipart’s UK Service Centres act as the ultimate ‘home away from home’ for these manufacturers. We provide the technical infrastructure and engineering depth to overhaul and repair products in the UK. By partnering with us, overseas OEMs can offer their UK customers a variety of benefits including:
- Lead-time reductions: Eliminating international transit and customs delays means assets return to service much sooner. This also reduces the quantities of capital spares (repairable float) required to support maintenance, repair and overhaul programmes.
- Carbon mitigation: Reducing the component miles associated with MRO activities is one of the most effective ways to lower Scope 3 emissions.
- Optimised performance: Our Service Centres don’t just fix parts, we enhance them. Through reverse engineering and obsolescence management, we breathe new life into legacy equipment that the original manufacturer may no longer support.
Predictive intelligence: From monitoring to action
By integrating Unipart’s own Remote Condition Monitoring (RCM) technologies directly into often safety-critical components, we are transforming passive hardware into intelligent assets. This allows us to track product health and performance in real-time, providing a granular level of data that was previously inaccessible. Instead of adhering to rigid, time or distance-based maintenance schedules, operators can transition to Condition-Based Maintenance (CBM). This data-driven approach identifies potential failures before they occur, drastically reducing unplanned downtime and extending the operational life of every component within the circular loop.
The significantly increased knowledge this data provides also enables models such as Product as a Service (PaaS) to be offered to customers. In this model, the focus shifts from the traditional sale of repair and overhaul to the guaranteed delivery of performance and availability. Because we have total visibility into the asset’s lifecycle and health, we can offer outcome-based contracts that provide customers with predictable costs and peace of mind, while Unipart manages the complexities of maintenance and logistics behind the scenes.
Our global capability
We believe that the best way to support a global industry is through local excellence. In addition to the UK, our MRO expertise is making a tangible impact for customers across the world.
In North America, our subsidiary Westcode is a key player in the refurbishment of heating, ventilation and air conditioning (HVAC) systems. Given the extreme climate variations across the continent, HVAC reliability is non-negotiable for passenger comfort and safety. Instead of replacing these energy-intensive units, Westcode’s specialised facility overhauls them to original specifications – or better. This regeneration approach typically costs 30 per cent less than buying new and significantly extends the asset’s lifecycle.
Unipart’s presence in Australia is anchored by our bearing overhaul facility in Auburn, New South Wales. Bearings are the unsung heroes of rail safety – their failure can be catastrophic. Our Australian operations provide a domestic hub for precision cleaning, inspection, and refurbishment, ensuring that local operators have a reliable supply of safety-critical products without the need for vulnerable international supply chains.
Saving time, cost and carbon
At the heart of our MRO philosophy is the ‘triple bottom line.’ Every project we undertake is measured against its ability to save time, reduce cost, and cut carbon.
- Time: Minimised downtime through localised Service Centres and optimised overhaul processes and digital technologies.
- Cost: Overhaul costs are typically 40-60 per cent lower than the cost of new procurement.
- Carbon: Supporting the circular economy by extending asset life and reducing transportation emissions.
By moving away from a disposable mentality, we are helping the rail industry embrace a sustainable future.
The following metrics clearly demonstrate the measurable impact of switching from a traditional model to our localised MRO approach:
| Metric |
Traditional ‘Ship-to-Repair’ |
Unipart Localised MRO |
| Logistics Carbon (Scope 3) |
High (Global Transit) |
Near-Zero (Domestic) |
| Capital Spares Required |
High (Long Lead Times) |
Low (Rapid Turnaround) |
| Asset Lifespan |
Manufacturer Defined |
Extended (Digital Second Life) |
Engineering a sustainable future
The role of MRO has evolved. It is now a strategic lever for operational excellence. Whether we are supporting an international train builder with UK-based component overhauls, or helping a North American operator reduce their HVAC energy consumption, our goal remains the same – to keep the world’s railways moving efficiently.
By choosing to maintain and overhaul rather than replace, and by doing so locally, we are collectively building a rail industry that is faster, leaner and greener.