Heidelberg M4.126.1401 Oil Pump Hochauslage

The Heidelberg M4.126.1401 oil pump is a mechanical spare part used in Heidelberg press systems. The strongest source is Heidelberg’s own eShop, which lists M4.126.1401/01 with the official product name “Oil pump Hochauslage.” That makes oil pump the correct primary industry term for the listing, while Hochauslage should be retained because it is part of Heidelberg’s official naming.

Part number and variants
The base number is M4.126.1401. The official Heidelberg catalog format shown in the eShop is M4.126.1401/01. In secondary sources, the part also appears as M41261401 or simply M4.126.1401, which look like formatting variants rather than different products. I did not find reliable evidence of additional official Heidelberg suffixes beyond /01 in the accessible sources.

Technical references
A multilingual SM 74 parts catalog excerpt supports the same identification, showing M4.126.1401 translated as Ölpumpe / Oil pump / Pompe à huile / Bomba de aceite. Several supplier listings add electrical details such as 380 V and 90 W, but those values come from marketplace sources rather than Heidelberg’s public eShop page, so they should be treated as secondary technical references unless checked against the installed pump or machine documentation.

Documented compatibility
The clearest open-source machine association is Heidelberg SM 74. Multiple marketplace listings tie M4.126.1401 or M4.126.1401/01 specifically to SM74. I did not find a fully exposed Heidelberg fitment table in the accessible official snippet, so broader compatibility claims should be avoided unless verified from your press documentation. The safest listing language is: for SM 74 and related Heidelberg applications requiring technical verification by model and serial number.

Application and buying note
Because public sources do not clearly expose the full Heidelberg machine list or installation position, this product should be sold by exact part number, full suffix, machine model, and serial number. That is especially important for pumps, where voltage and configuration may vary by machine setup. This is a safer approach than expanding compatibility from seller claims alone.