3-car class 115 DMU plus parts for sale.
Last updated 13th April 2025.              Jump to parts section

Offers are invited for the 3 car set consisting of two power cars M51886, M51899 and a non powered trailer car M59761.
The units were used on the Aylesbury to Marylebone line for thirty years.
M51886 and M51899 were built in Derby in 1960 to lot 30598 with 78 second class seats.
M51899 was the only unit to be  given a name plate "Aylesbury College Silver Jubilee 1987".
M59761 is a composite trailer built in 1960 to lot 30800.

The power cars are largely intact but will require overhaul, refurbishing and repainting.
Seating is in place in one power car and centre car and in reasonable condition given the age. The other power car seating has been unbolted and stacked inside.
Power cars offer the potential to be used as a passenger carrying "guards coach" (autocoach?) with ready fitted brake controls for reverse working.

The trailer car internally is in good condition (see photos below). Externally it needs bodywork sorting and repainting. It is fitted with a diesel heater so can be useful where steam heating is not available.
Built as a composite (115TCL) with 30 1st class and 40 2nd class seats. It can be sold as a unit separate from the DMU. ***Make us an offer***

Class 115's are blue square coupling codes, Derby built originally as 4-car units. Historical information can be found here: https://www.railcar.co.uk/type/class-115/.

It is also worth noting that these units were built without using asbestos according to BR records.
These records are available to download on the Railcar website here: https://www.railcar.co.uk/topic/asbestos/.
The Railcar website also has lots of technical information including drawings and maintenance information for many of the parts: https://www.railcar.co.uk/technology/.

Some history and photographs of these units can be found on the preserved railcar website:   M51886  M59761  M51899

The railway centre would ideally like to sell the 3-car DMU for refurbishing as a set.
Other options such as selling the centre car separately, selling power cars individually or as a pair are possible. ***Make us an offer***
Please contact Roger via email at roger.jays(at)bucksrailcentre.org  ( replacing the (at) with @ ) for further information, viewing and to discuss your needs.

The units have been standing outside for some time and the external bodywork has deteriorated as can be seen in these generals views of the 3 car set:


Left: trailer car 1st class composite internal view:                                                                               Right: trailer car 2nd class internal view:


Left: diesel heater unit:                                                                                                                          Right: BUT "L" type engine plate:
Parts are also available from a 4th dismantled DMU power car.
Brief details are listed below and over the next few months more items will be added to this list.
Viewing can be arranged by appointment only. Items are sold as seen, where lying, no returns.
 
For further information about these items or enquiries for specific parts please contact Roger via email at roger.jays(at)bucksrailcentre.org ( replacing the (at) with @ ).
**1 SOLD 19/02/25** (Ref 1): DMU 6 cylinder diesel engine BUT "L" type engine.
Dry stored since removing from dismantled power car.
Engine overhaul manual here: https://preserved.railcar.co.uk/documentation/but-50000.pdf





 **LAST ONE OIRO £800** (Ref 2): DMU 6 cylinder diesel engine BUT "L" type engine.
Dry stored since removing from dismantled power car.
Engine overhaul manual here: https://preserved.railcar.co.uk/documentation/but-50000.pdf
**£40each** (Ref 3): AEC magnetic valves type TE514 form L4.
Coil resistance typically 32ohm. Checked and operate on 24V.
Will require overhauling. 4 available. Possibly other types also available.

 

**SOLD 13/04/25** (Ref 4): Motor throttles (2off).
**£30each** (Ref 5): I believe these are coach heater radiator elements?
However if not I'm sure someone can ID them.
They've been identified as BR Mk1 steam heat elements typically under bench
 seats in compartment stock - thanks to Chris Moxon for that info.
There are at least 5 of these available.


 **£75 ONO** (Ref 6): DMU air pressure gauge 0-100lb/sq in
The glass is missing as are the 3 small screws that hold the bezel onto the gauge.
Manufactured by Pressure Gauges Ltd, Oldbury.
It needs tidying but is working as this short video shows.