Description
Overview:
Red/White Outline Side Marker Lamp 12V Bulb Vertical Mount, Spade (MPN 761 473) is a bulb-driven outline marker for trailers and towed equipment. It combines a white forward lens with a red rear lens to define the vehicle's extremities and improve side visibility in low light. Built to the Radex 925/601 pattern and supplied by Maypole, the unit is designed for vertical mounting on body sides or corner posts where a red/white marker is required. The lamp is E‐mark approved for road use, uses standard 12V electrics, and is supplied with a bulb ready to fit. Spade terminals provide quick, reliable connections, and the unit incorporates a reflector to enhance conspicuity. Supplied in trade bulk without retail packaging, it is suitable for trailer builders, fleet maintenance and repair work across plant, agricultural and light commercial applications.
Key Features:
- 12V bulb type outline marker, bulb included
- Red/white lens for forward and rearward indication on one unit
- Vertical mounting orientation for side/corner positions
- E‐mark approved for on-road use
- Spade terminal connections for fast installation
- Integrated reflector for added visibility
- Radex 925/601 pattern compatibility
- Supplied in trade bulk (no retail display packaging)
- Surface-mount design with mounting holes for secure fixing
Typical Applications:
Used as an outline side marker on unbraked and braked trailers, plant and machinery transporters, flatbeds, box vans, horseboxes and agricultural trailers. Direct replacement for Radex 925/601 units fitted by many trailer manufacturers. Equivalent to Maypole MP874 (display packed) and MP874B (bulk). Mount vertically so the white lens faces forward and the red lens faces rearward, and connect to a 12V circuit via the spade terminals.
Also known as:
- Maypole part number MP874B
- MP874 (display packed variant)
- Radex 925/601 outline marker
- Red/white side outline lamp
- Bulb side marker light
Product Specifications
| L&S Part No. | 761 473 |
|---|---|
| Unit of Sale | 1 |


