Class 25 Profile and Models

Class 25

25258 near Walsall in September 1978. © Steve Jones

The Class 25 (aka the Sulzer Type 2) were a class of diesel locomotives produced for British Rail. The initial batch of Class 24 locomotives were deemed to be lacking in top speed, so the Class 25s were given uprated engines and charge air cooling which allowed them to beat the 75mph top speed of the 24s. Although primarily designed for freight work, a number of the class were fitted with boilers for heating passenger trains. Throughout the 1970s the class could be seen across much of the network (aside from the Eastern & Southern regions), which led to them being nicknamed "Rats". There were a number of variations present amongst class members, with the initial 25/0 type followed on by the 25/1 (which featured different traction motors and other modifications), 25/2 (which featured restyled bodywork and a different initial livery) and the 25/3 (the final batch of locomotives). Some of the class were converted into mobile generators for train heating in the 1980s, which were in turn scrapped by 1994.

(Information provided via Wikipedia)

Type of Locomotive



Crewe Works
Darlington Works
Derby Works
Beyer, Peacock & Co.

Build Dates

1961 to 1967

Total Built


Tractive Effort

39,000 lbf

Power Output

1,250 hp

Top Speed

90 mph

Wheel Configuration


Operated By

British Rail

Main Duties

Mixed Traffic

In Service Until


Surviving Examples



Products awaiting categorisation

Scale Brand Image Construction Type DCC Capability Product Code Product Title Livery
OO Gauge (1:76 Scale) Kitbuilt (unknown brand) KB110 Class 25 ETHEL 97252 in Intercity livery - converted from Hornby Class 25 (unpowered) RTR/RTUse/Pre-assembled Not set KB110
Class 25 ETHEL 97252 in Intercity livery - converted from Hornby Class 25 (unpowered) Awaiting Categorisation
O Gauge (1:43 Scale) JLTRT - Just Like The Real Thing PWRL11 Class 25 Sulzer type 2 loco kit Requires assembly Not set PWRL11
Class 25 Sulzer type 2 loco kit Awaiting Categorisation
O Gauge (1:43 Scale) PRMRP No image available Requires assembly Not set BRL-025E
Class 25 (early) locomotive kit Awaiting Categorisation