Marklin diagrams and part numbers are available at www.maerklin.de. Click on 'Service', then the button in the Suche box, then type in the catalogue numbers. either 37990 or 37991. To the right of the picture of the Big Boy there is a link for 'Details', finally on the next screen click on the 'Ersateile' button (Spare Parts). On the next screen a further button brings up an exploded diagram and a full parts list.
A traffic light system shows whether the parts are in stock at Marklin. If so they can be ordered from any Marklin dealer. Some are better than others, obtaining parts in the UK is very difficult right now, so I find it best to go to German or Austrian dealers. One particularly helpful dealer can be found at www.heiss.co.uk, the owner Manfred Gress has been excellent at obtaining many difficult to obtain spares for me. The tender draw bar (Part No. 216782) is showing as in stock for a mere 99 cents. Good luck and please contact me if I can be of further help.
Regards
Ashley
A traffic light system shows whether the parts are in stock at Marklin. If so they can be ordered from any Marklin dealer. Some are better than others, obtaining parts in the UK is very difficult right now, so I find it best to go to German or Austrian dealers. One particularly helpful dealer can be found at www.heiss.co.uk, the owner Manfred Gress has been excellent at obtaining many difficult to obtain spares for me. The tender draw bar (Part No. 216782) is showing as in stock for a mere 99 cents. Good luck and please contact me if I can be of further help.
Regards
Ashley