ZF 63 A Marine gearbox 2:1 reduction ratio

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ZF 63 A Marine gearbox 2:1 reduction ratio

Product information

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  • Reverse reduction marine transmission with hydraulically actuated multi-disc clutches .
  • Suitable for high performance applications in luxury motoryachts, sport fishers, express cruisers etc .
  • Robust design also withstands continuous duty in workboat applications .
  • Fully works tested, reliable and simple to install .
  • Design, manufacture and quality control standards comply with ISO 9001 .
  • Compatible with all types of engines and propulsion systems, including waterjets and surface- piercing propellers, as applicable .


  • Lightweight and robust aluminum alloy casing (sea water resistant) .
  • Case hardened and precisely ground gear teeth for long life and smooth running .
  • Output shaft thrust bearing designed to take maximum propeller thrust astern and ahead .
  • B/W connection integrated with casing .
  • Smooth and reliable hydraulic shifting with control lever for attachment of push-pull cable .
  • Suitable for twin engine installations (same torque capacity in ahead or astern mode. Reduction Ratios in ahead or astern are very close.) .
  • Replaceable oil filter cartridge .
  • Compact, space saving design due to 8° down-angle and beveloid gear principle .
  • "SUPERSHIFT" clutch control .


  • Engine-matched dual stage coupling .
  • SAE 3 and SAE 4 bell housings .
  • Oil cooler complete with fittings and flexible oil hoses .
  • Mounting brackets .
  • Propeller shaft flange .
  • Control cable bracket for mounting of push-pull cable to the control lever .
  • Classification by all major Classification Societies on request .
  • SAE «A» Power Take Off .
  • Trolling valve (mechanical) for slow-speed drive .
  • Thermostatic valve for better performance of trolling valve in cold sea water .
  • Electric Trolling .
  • Supershift (with Autotroll and Easidock) .