Sparex source: https://us.sparex.com/metric-double-lip-seal-38-x-52-x-8mm-double-lip-50301.html Product: Metric Double Lip Seal, 38 X 52 X 8mm Double Lip - Sparex S.50301 SKU: S.50301 Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.