There have been numerous topics in the past where someone is looking for parts for a loco, a car, a building kit, etc. The usual solutions are checking the Maerklin website, other manufacturers' websites, Lokshop, MBSL, AJCKIDs, and so on, or buy an identical item on eBay and use one as a source of spares.
Buying an identical item is a good response if the item is inexpensive, but certainly wouldn't be what you would do for an expensive locomotive.
Mainly for locomotives and building kits the manufacturers provide a very detailed blow up diagram of the item along with a list of all of the assembly part numbers that can be bought from the dealer. Nice information and comment until you actually try and buy a part other than the usual slider, light bulb, tires, brushes, etc. However, the normal items that are going to get damaged or missing from an operating item such as steps, ladders, puffers, headlights, and other fine details are next to impossible to find.
Therefore, I have 2 questions:
1. When a manufacturer prepares such a list and sells a new product, what is the purpose of identifying the part number if it is not readily available?
2. In general do the manufacturers create a finite number of parts when the product is first produced and then nothing more?
It seems to me that the parts may only be available for a short time after a new product is released. It then would be best when you obtain a new item to take a guess what small details may break in a derailment, maintenance disassembly, normal handling, etc. and order them at that time. If not they probably will not be available when you actually need them.
I have numerous locomotives of various ages from the 1970s to brand new c/w all of their parts number diagrams where I either have a broken step, handrail, or ladder, yet when I look to buy a part it is never listed as available on the M site and dealers generally will look no further. So does anyone have a good source that stocks old spare parts, or is it truly a hit and miss?
Cheers
Peter