Search the exact OEM number
Open the part page to see its description, fitment rows, diagram references, and verification notes.
Independent BMW OEM reference
BMW Part Number Lookup
Find BMW part numbers, model fitment records, diagram references, position numbers, and verification notes from one focused lookup tool.
25,065 BMW part numbers
39,525 diagram reference entities
404,220 deduplicated fitment records
BMW initial catalog coverage
Choose your lookup path
Start from what you already know.
Use the shortest path for your task: enter an exact OEM number, start from a BMW model and component, match a diagram position, or verify fitment before ordering.
Find by model and component
Choose the BMW series, model, and exact variant, then search a component name or system to find candidate part numbers.
Browse diagram references and catalog pages
Use diagram references and position numbers to match the component location to the correct OEM reference.
Review a part detail example
Check model context, diagram No., quantity, notes, and the before-ordering checklist before treating a number as final.
BMW catalog
Start from a number, a model, or a diagram position.
PartNumberFinder organizes part numbers, model catalog entries, and diagram references around the lookup task: identify a candidate number, inspect its context, and verify it before ordering.
| Search intent | Example query | Best landing page |
|---|---|---|
| Exact part lookup | BMW 34314050052 | Part detail page |
| Model + part name | BMW Isetta 250 brake master cylinder | Model-first lookup |
| Diagram lookup | BMW Isetta brake master cylinder diagram | BMW catalog and diagram references |
| Fitment check | where BMW 34314050052 appears | Part detail fitment section |