Replacement-part pickup: verify fit before driving

For a replacement part, correct fit is worth more than a small price saving. Match the manufacturer's part number, revision, and compatible model before reserving local pickup. Confirm actual stock and whether the store will accept a return after the package is opened. Add travel, parking, and downtime to the pickup price, then compare with delivered cost and arrival time online. Bring the old part's number or dimensions, but do not assume visual similarity proves compatibility. A fast pickup of the wrong part doubles the delay.