Fits
Requires one A-grade source or two independent B-grade sources with no unresolved conflict.
Editorial system
Evidence before confidence.
Fitment is not inferred from a similar-looking machine. Every verdict is limited to the exact vehicle, model-year, installed setup and source record shown on the page. Official-source summaries remain reference material and do not claim independent test fitting.
Evidence grades
Grades describe the source, not how persuasive the wording sounds.
AOEM manuals, technical bulletins, or standardized measured recordsCan support source summaries; safety conclusions still need human review
BManufacturer instructions or multiple independently verified owner casesCan support QA; important claims need review
CSingle forum post, video comment, or merchant descriptionResearch lead only
DAI inference, missing source, or unresolved source conflictCannot support a conclusion
Conditional
The triggering condition and affected interface must be visible beside the verdict.
Safety
High-risk torque, capacity or installation claims require A-grade evidence and human sign-off.
Unknown
Missing, weak or conflicting evidence returns Unknown instead of the most plausible guess.