Tank Unit & Pipes
Applicable to 3500 and 3500S Manual
| 1 - 3500 cars numbered up to suffix G in the range 425-428 |
| 2 - 3500 cars numbered from suffix H onwards in the range 425-428 and cars numbered in the range 451-455 and also 3500S manual models |
| 3 - Early models |
| 4 - Late models |
