Source modelThe exact competitor, legacy, or installed model number from the published table.
Published targetThe target model or selection printed by the evidence publisher.
Evidence typeExplicit, dimensional, functional, cross-reference, selection, comparison, or successor—not one generic “compatible” label.
Target specificationsVerified model-level target specs are shown when a matching catalog record exists.
SourceThe manufacturer document or page supporting the relationship stays linked from the record.
Fit checksRatio, torque, shaft/bore, mounting, input, accessories, duty, and environment remain visible before purchase.