Index of Initial Equipment Fitted to Railcars (From the BUT Spare Parts Catalogue AEC, SGC Ltd & Leyland sections).
| Vehicle Nos. | BR Lot No. | BUT DTO No. | Builder | Number of Cars |
Equipments per car |
Engines | Gearboxes | Final Drives | ||||
| No. 1 Position | No. 2 Position | |||||||||||
| Type | List No. | Type | List No. | Type & List No. | ||||||||
| E50001-E50024 | 30209 | 1/35 | Derby C&W | 24 | 2 | Leyland 900/6 | SE4 | 6494 | SE4 | 6494 | RF28 | 6489 |
| E50025 (*see notes) | 30209 | 1/42 | Derby C&W | 1 | 2 | Leyland 900/9 | SE3 (R17) | 6718 | SE3 (R17) | 6718 | RF28 | 6727 |
| E50026-E50031 | 30209 | 1/35 | Derby C&W | 6 | 2 | Leyland 900/6 | SE4 | 6494 | SE4 | 6494 | RF28 | 6489 |
| E50032 (*see notes) | 30209 | 1/42 | Derby C&W | 1 | 2 | Leyland 900/9 | SE3 (R17) | 6718 | SE3 (R17) | 6718 | RF28 | 6727 |
| E50033-E50047 | 30209 | 1/35 | Derby C&W | 15 | 2 | Leyland 900/6 | SE4 | 6494 | SE4 | 6494 | RF28 | 6489 |
| E50048 | 30209 | 1/28A | Derby C&W | 1 | 2 | Leyland 900/2 | SE4 | 5744 | SE4 | 5744 | RF28 | 6489 |
| E50049 | 30459 | 1/28 | Derby C&W | 1 | 2 | Leyland 900/2 | SE4 | 6085 | SE4 | 6085 | RF28 | 6489 |
| W50050-W50091 | 30211 | 1/18A | Derby C&W | 42 | 2 | Leyland 680/2 | R14 | 5753 | R14 | 5752 | - | - |
| W50092-W50133 | 30213 | 1/18A | Derby C&W | 42 | 2 | Leyland 680/2 | R14 | 5753 | R14 | 5752 | - | - |
| M50134-M50137 | 30248 | 1/24 | Met. Cam. | 4 | 2 | R. R. | SE4 | 5744 | SE4 | 5963 | - | - |
| E50138-E50151 | 30249 | 1/12 | Met. Cam. | 14 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50152-E50157 | 30252 | 1/12 | Met. Cam. | 6 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50158-E50163 | 30253 | 1/12 | Met. Cam. | 6 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50164-E50167 | 30254 | 1/12 | Met. Cam. | 4 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50168-E50171 | 30255 | 1/12 | Met. Cam. | 4 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50172-E50197 | 30256 | 1/12 | Met. Cam. | 26 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50198-E50209 | 30259 | 1/12 | Met. Cam. | 12 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50210-E50233 | 30261 | 1/12 | Met. Cam. | 24 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50234-E50245 | 30263 | 1/12 | Met. Cam. | 12 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50246-E50248 | 30339 | 1/12 | Met. Cam. | 3 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50249 | 30505 | 1/40 | Cravens | 1 | 2 | A52 | R14 | 6321 or 6726 | R14 | 6321 or 6726 | - | - |
| E50250-E50259 | 30266 | 1/12 | Met. Cam. | 10 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50260-E50269 | 30267 | 1/12 | Met. Cam. | 10 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50270-E50279 | 30268 | 1/12 | Met. Cam. | 10 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50280-E50289 | 30338 | 1/12 | Met. Cam. | 10 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| E50290-E50296 | 30270 | 1/12 | Met. Cam. | 7 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| M50303-M50320 | 30275 | 1/12 | Met. Cam. | 18 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| M50321-M50338 | 30276 | 1/12 | Met. Cam. | 18 | 2 | A52 | R14 | 5715 | R14 | 5713 | - | - |
| SC50339-SC50347 | 30278 | 1/16 | Glos. C&W | 9 | 2 | A52 | R14 | 5713 | R14 | 5715 | - | - |
| M50348-M50358 | 30278 | 1/16 | Glos. C&W | 11 | 2 | A52 | R14 | 5713 | R14 | 5715 | - | - |
| E50359-E50370 | 30280 | 1/14 | Cravens | 12 | 2 | Leyland 680/1 | R14 | 5713 | R14 | 5715 | - | - |
| E50371-E50372 | 30280 | 1/14 | Cravens | 2 | 2 | A52 | R14 | 5713 | R14 | 5715 | - | - |
| E50373-E50389 | 30282 | 1/14 | Cravens | 17 | 2 | A52 | R14 | 5713 | R14 | 5715 | - | - |
| E50390-E50394 | 30284 | 1/14 | Cravens | 5 | 2 | A52 | R14 | 5713 | R14 | 5715 | - | - |
| M50395-M50414 | 30286 | 1/17 | Park Royal | 20 | 2 | A52 | R14 | 5753 | R14 | 5752 | - | - |
AEC ENGINE VARIATIONS
The AEC Spare Parts catalogue divides engines into two sections: A51 or A52. Second column below is the DTO nos. and should be referenced to the tables above.
| A51 | ||
| A220L | 1/B, 1/2, 1/5 | Engine complete with flywheel (belt tensioner & dynamo) |
| A220S | 1/3, 1/20 | Engine complete with flywheel (right-angle drive) |
| A220W | 1/6 | Engine as A220S with two oil-pressure switches |
| A220Y | 1/7, 1/11, 1/11B | Engine as A220L less dynamo |
| These all had 18" flywheels and were supplied without fuel filter, fuel pipes and electrical installations. | ||
| A52 | ||
| A220AC | 1/12, 1/14 (24-off), 1/16, 1/17,1/21, 1/22, 1/23 (6-off), 1/25, 1/27, 1/31, 1/33, 1/40, 1/57 | Engine complete with flywheel, twin fuel filter, fuel pipes & fittings and electrical installations (right-angle drive) |
| A220AJ | 1/26 | Engine as A220AC less air compressor and one oil-pressure switch |
| A220AK | 1/51, 1/56 | Engine as A220AC with 3" shorter oil filler tube |
| A220AL | 1/34 | Engine as A220AK with Simms starter motor |
| A220AZ | 1/32 | Engine as A220AJ less fan shaft spacer and with different electrical installations |
| A220BB | 1/55 | Engine as A220AC with Simms starter motor |
| These all had 20" flywheels and were supplied with fuel filter, fuel pipes and electrical installations. | ||
Gearbox Notes
Type R14 Gearbox List No. 6321 when modified was List No. 6726. Boxes were interchangable.
*Also fitted to E50025 & E50032:- 17 in. D.F. Torque Converter, List No. 6793 and V.S. Control Equipment (Generator) List No. 6947