1. Confirm the complete model and variant
Use the machine plate, not a family resemblance. Preserve subclass, factory, market, voltage and serial information. Department-store brands such as Kenmore can use similar-looking model numbers from different manufacturers.
2. Recover the original OEM number
Look for a model-specific parts list or exploded diagram. Keep the full number, including dashes and suffixes. Search both the formatted and normalized number because dealers often remove punctuation.
3. Distinguish the replacement relationship
- Same OEM part: separate model documents print the same complete number.
- Superseded part: a manufacturer or reliable catalog maps an old number to a new one.
- Aftermarket equivalent: a third party claims equivalent specifications.
- Donor part: an original component removed from another machine.
- Reproduction: a newly manufactured copy that may require material and tolerance checks.
- Modified fit: installation requires machining, rewiring or an adapter.
4. Apply a stricter safety check
Motors, foot controllers, cords, capacitors, gears, hooks and other tolerance-sensitive parts require more than a matching title or photograph. Verify ratings, dimensions, direction and installation requirements with a qualified technician.
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