- “Stupid things! They're all scared of coming with me!”
- ―Lord Harry
These 56 seater saloons form the entire passenger stock of the railway. Their interior furnishing is somewhat spartan, but they are the height of luxury compared with the coaches provided when the line was opened. Five were open-sided, but with a roof and waterproof curtains which could be let down for protection in bad weather. The sixth offered no protection at all. It was most unpopular and soon withdrawn, but some of the curtained stock lingered on till finally phased out in the 1920s. Each saloon coach has a closed-off compartment in front from which, on the upward journey, the Guard has a clear view of the line ahead, and can warn his engine crew in the rear of any obstruction. The position is reversed on the downward run. He must then be on the alert to use his emergency brake on warning from the engine crew. This brake is very powerful, and can bring the coach to a standstill in only a few yards.
The wheels and frames of two open-sided coaches were used to build the "Trucks". The coaches are kept at Kirk Machan Carriage Sheds, with all nine occupying one road while the "Trucks" occupy the other.
The Culdee Fell Railway Coaches are based on the Snowdon Mountain Railway's bogie coaches; the coaches seen in Bad Look-Out are based on the coaches as they were at the railway's opening in 1895, while the coaches seen in the other stories are based on the coaches after they were rebuilt in the 1950s. All original SMR coaches were withdrawn at the end of the 2012 season, and were replaced by new coaches for exclusive use with the railway's diesel fleet. Two of the old coaches have subsequently been rebuilt to resemble their original 1895 appearance for use with the railway's steam locomotives.
The Culdee Fell Railway Coaches are painted orange with cream window surrounds and have grey roofs.
- So far, Catherine is the only known coach to have a name.
- In the magazines, Culdee has been portrayed pulling coaches instead of pushing them. Some magazines also depict them as branch line coaches.