Heidelberg Water Pan Roller M3.040.900

The most reliable technical name for M3.040.900 is Heidelberg Water Pan Roller. In multilingual Heidelberg-style parts catalog material for the SM 74, the code M3.040.900 is listed within the coating unit section and translated as “Tauchwalze / Water pan roller / Barboteur / Rodillo de inmersión.” That is stronger evidence than marketplace naming, so it should be the primary catalog term.

A naming conflict does exist in the market. Equigraf lists M3.040.900 as “Coating Metering Roller,” while the parts-catalog references place M3.040.900 after M3.040.100 and M3.040.200 and identify it specifically as the water pan roller in the coating unit sequence. Because of that inconsistency, the safest commercial wording is to sell it as Heidelberg Water Pan Roller M3.040.900 and note that some sellers market it under broader roller terminology.

The exact part number confirmed is M3.040.900. I did not find a clearly documented active sales suffix like /01 for this code in the sources reviewed, but I did find an assembly reference TKS M3.040.900 -002/00 in the catalog material. That appears to be an internal assembly drawing or subassembly reference, not a straightforward orderable suffix variant, so I would avoid presenting it as a direct interchangeable part number.