A RockAuto-first identity workflow that compares price only after brand, manufacturer number, suffix, and position match.
Connect it to ScanWrench and see what your car actually returned.
Identity before seller
Begin with exact vehicle application and a structured catalog anchor: brand, manufacturer part number, suffix, position, qualifiers, and known supersession. That becomes the search key for eBay, dealers, other retailers, and local availability—not the other way around.
A matching title is not enough
Require label photos when possible, compare the exact number, verify condition and authenticity signals, and keep seller history and return terms separate from technical fitment.
- Do not normalize away suffixes.
- Do not let stock photos prove the received item.
- Do not let price override an unresolved supersession.
- Do not source a part until diagnosis authorizes it.
Close both evidence loops
The repair record should retain the installed item identity and the outcome under the original proving condition. A correct part that did not correct the measured fault is still a failed diagnostic decision; a repaired symptom without retained identity weakens future service.
THE TAKEAWAYThe manufacturer part number guides the market search; the market never gets to invent the part identity.
Turn the warning into a saved record.
Use ScanWrench to capture the standardized evidence your exact vehicle and compatible adapter return. Manufacturer-controlled systems remain not checked unless exact support is verified.
Scan your car free on iPhone3 free scans · compatible adapter requiredScanWrench Editorial created this issue from the platform's evidence model and current primary sources. It separates observed facts, plausible paths, decisive tests, safety limits, and remaining unknowns. Its purpose is to improve vehicle decisions; it does not replace exact manufacturer procedures or qualified professional judgment.
See how this page earns trust.
These links are primary-source starting points for the page's scope. They do not replace the current manufacturer procedure, wiring, specification, or service information for a specific vehicle.
Publisher
ScanWrench Editorial is the working byline for this library. Joshua Black, founder and publisher, is responsible for publication decisions, disclosures, and corrections.
A reviewed date means an editorial scope and safety check. It is not an ASE credential, OEM authorization, or vehicle-specific repair approval.
Primary sources
- NHTSA datasets and APIsNational Highway Traffic Safety Administration · Primary U.S. recall, complaint, investigation, rating, and manufacturer-communication data.
- Vehicle safety recallsNational Highway Traffic Safety Administration · Official VIN-level U.S. safety-recall lookup and recall guidance.
- SAE J2012 — Diagnostic Trouble Code DefinitionsSAE International · Standardized DTC structure, definitions, and manufacturer-controlled ranges.
Revision history
- Initial publication and review: claim boundaries, safety language, internal links, and cited source scope checked.
No material correction is hidden. Material additions and corrections are dated above when they occur.
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