---
title: "Wheel Slide Protection (WSP) Box replacement for Central line"
ocid: "ocds-h6vhtk-059298"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-059298"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-059298.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-059298.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "LONDON UNDERGROUND LIMITED"
published: "2026-03-26"
---

# Wheel Slide Protection (WSP) Box replacement for Central line

Buyer: LONDON UNDERGROUND LIMITED  
Current stage: Planning  
OCID: ocds-h6vhtk-059298

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[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-059298.json)

## Summary

The procurement process initiated by London Underground Limited in collaboration with Transport for London involves the Wheel Slide Protection (WSP) Box replacement for the Central line. This procurement is currently in the planning stage for a direct award and aims to redesign and supply modern electronic cards for the WSP Control Unit and the Traction Brake Encoder and Decoder. The contract period is scheduled to start on 30th October 2027, lasting until 29th October 2031, covering delivery across multiple regions in the United Kingdom. Industry categories pertinent to this tender include Railway and tramway locomotives and rolling stock and associated parts, as well as Transport services. Interested parties can anticipate a future notice date set for 4th February 2027.

This tender presents substantial opportunities for businesses specialising in the rail and transport industries, especially those adept at confronting obsolescence and performance issues in railway systems. Companies that are small or medium-sized enterprises (SMEs) may find it particularly beneficial due to the suitability criteria detailed in the procurement process. The planned engagement to explore long-term solutions and understand market capability underscores the project's potential for fostering innovation and improving the WSP system availability and safety. Thus, enterprises with expertise in electronic systems design, particularly in transportation applications, are well-positioned to leverage this tender to bolster business growth.

## Notice

This procurement will deliver the redesign and supply of modern replacement electronic cards for the Wheel Slide Protection (WSP) Control Unit and the Traction Brake Encoder and Decoder, eliminating obsolescence and restoring units currently Beyond Economical Repair back into operational service

### Planning Information

Please provide your interest by 16 September 2025 and registering it by sending email to IngaSkutane@tfl.gov.uk.
We will send the EME questionnaire with the associated documents to all interested suppliers on 17 September 2025.
Deadline for submitting your early market engagement responses is 7 October 2025. 
Any further information will be provided during early market engagement process.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/027868-2026 |
| Notice type | UK1 - Pipeline Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Direct award |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 26 Mar 2026 |
| Submission deadline | Not specified |
| Future notice date | 4 Feb 2027 |
| Award date | Not specified |
| Contract period | 29 Oct 2027 - 29 Oct 2031 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planned |
| Lots status | Planned |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | LONDON UNDERGROUND LIMITED |
| Additional buyers | TRANSPORT FOR LONDON |
| Locality | LONDON |
| Post town | East London |
| Postcode | E20 1JN |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI41 Hackney and Newham |
| Local authority | Newham |
| Electoral ward | Stratford Olympic Park |
| Westminster constituency | Stratford and Bow |
| Delivery location | TLC North East (England), TLD North West (England), TLE Yorkshire and The Humber, TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLI London, TLJ South East (England), TLK South West (England) |

## CPV Codes

### Divisions

- 34 - Transport equipment and auxiliary products to transportation
- 60 - Transport services (excl. Waste transport)

### Codes

- 34600000 - Railway and tramway locomotives and rolling stock and associated parts
- 60000000 - Transport services (excl. Waste transport)

## Release History

- 26 Mar 2026 at 12:16 - Planning - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/027868-2026
- 2 Sep 2025 at 15:56 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/053312-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/027868-2026
  26th March 2026 - Pipeline notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/053312-2025
  2nd September 2025 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-059298. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-059298.json.