In short
OEM spares come from the original equipment maker and match the original part. Drawing-based spares are made or sourced to your drawing or specification. Either can work, but you should confirm material, dimensions, fit and documents before ordering.
Stainless steel power plant componentThe two routes
| OEM spare | Drawing-based spare | |
|---|---|---|
| Source | Original equipment maker | Made or sourced to your drawing |
| Match to original | Exact | Depends on the drawing and material check |
| Lead time | Set by the OEM | Depends on the part and supplier |
| Warranty and approvals | May be tied to OEM parts | Check with your plant or insurer |
General guidance. Your plant's own rules and the equipment warranty come first.
What to check with drawing-based spares
- Material grade and any standard it must meet.
- Dimensions and tolerances against the drawing.
- Inspection and test certificates.
- Whether the part is safety critical, which may need extra approval.
Which to choose
Use OEM spares where warranty, approval or safety rules require them. Drawing-based spares can help when the OEM part is slow, expensive or no longer made. Learn what to send for a spares enquiry.
Need power plant spares?
Asaus Technologies supplies spares against drawings, specifications or OEM references. Request a quote.