Sparex source: https://us.sparex.com/weasler-metric-tri-lobe-pto-bypy-series-5-46-compressed-length-common-application-all-purpose-driveline-170483.html Product: Weasler - Metric Tri-lobe PTO, Bypy Series 5, 46'' Compressed Length, Common Application: All Purpose Driveline - Sparex S.170483 SKU: S.170483 Listing note: HP Rating @ 540RPM: 52HP, Italian Series: AB5/A5. Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.