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Bay Boater Marine

  • Transmission Parts
    • Parts for Velvet Drive Marine Transmissions
    • HURTH HBW Series Mechanical Shift
    • Hurth HSW & ZF Series Hydraulic Shift Marine Transmissions
    • Hurth IRM Series 220 301 325 Models
    • Twin Disc Transmissions
  • Marine Engine Parts
    • Yamaha Outboard
    • Crusader Replacement Parts
    • Mercruiser Replacement Parts
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  • Cart / $7,834.97
      • × Bearing Rear Reduction 2.57:1 2.91:1 and V-DriveBearing Rear Reduction 2.57:1 2.91:1 and V-Drive
        5 × $249.95
      • × Pulley for Crusader Raw Water Pump V-Belt 97952 with BoltsPulley for Crusader Raw Water Pump V-Belt 97952 with Bolts
        1 × $79.95
      • × Bearing for Early Reduction 1.52:1, 1.91:1, 2.10:1 Ratios. Only Fits Models with Seal HolderBearing for Early Reduction 1.52:1, 1.91:1, 2.10:1 Ratios. Only Fits Models with Seal Holder
        8 × $249.95
      • × Gasket Seal Kit HBW5-50-100 WITH THRUST WASHERSGasket Seal Kit HBW5-50-100 WITH THRUST WASHERS
        4 × $74.95
      • × Bearing for Velvet Drive 71C 1004 1013 1017 Forward Piston Housing Replaces B107ABearing for Velvet Drive 71C 1004 1013 1017 Forward Piston Housing Replaces B107A
        3 × $18.95
      • × PlaceholderBearings
        4 × $0.01
      • × Pulley Kit for Crusader 7.4L 454, 502 8.2L, Big Block Marine Engines 22652 3 PulleysPulley Kit for Crusader 7.4L 454, 502 8.2L, Big Block Marine Engines 22652 3 Pulleys
        2 × $229.95
      • × PlaceholderBearings
        2 × $0.01
      • × Rebuild Kit Velvet Drive V-Drive 2002 SeriesRebuild Kit Velvet Drive V-Drive 2002 Series
        4 × $749.95
      • × Pulley Crankshaft for Crusader Big Block Drives Circulating Pump and AlternatorPulley Crankshaft for Crusader Big Block Drives Circulating Pump and Alternator
        2 × $24.95
      • × Hose for Crusader From Raw Water Pump To Transmission Oil Cooler 97310 with ClampsHose for Crusader From Raw Water Pump To Transmission Oil Cooler 97310 with Clamps
        4 × $59.95
      • × PlaceholderBearings
        6 × $0.01
      • × Reverse Adapter Bearing 4840DReverse Adapter Bearing 4840D
        6 × $19.95
      • × Main Case Bearing for All Ratios EXCEPT 1.52:1 Replaces 1000-130-018Main Case Bearing for All Ratios EXCEPT 1.52:1 Replaces 1000-130-018
        4 × $69.95

      Subtotal: $7,834.97

      View cartCheckout

  • Checkout +
  • Cart
    • × Bearing Rear Reduction 2.57:1 2.91:1 and V-DriveBearing Rear Reduction 2.57:1 2.91:1 and V-Drive
      5 × $249.95
    • × Pulley for Crusader Raw Water Pump V-Belt 97952 with BoltsPulley for Crusader Raw Water Pump V-Belt 97952 with Bolts
      1 × $79.95
    • × Bearing for Early Reduction 1.52:1, 1.91:1, 2.10:1 Ratios. Only Fits Models with Seal HolderBearing for Early Reduction 1.52:1, 1.91:1, 2.10:1 Ratios. Only Fits Models with Seal Holder
      8 × $249.95
    • × Gasket Seal Kit HBW5-50-100 WITH THRUST WASHERSGasket Seal Kit HBW5-50-100 WITH THRUST WASHERS
      4 × $74.95
    • × Bearing for Velvet Drive 71C 1004 1013 1017 Forward Piston Housing Replaces B107ABearing for Velvet Drive 71C 1004 1013 1017 Forward Piston Housing Replaces B107A
      3 × $18.95
    • × PlaceholderBearings
      4 × $0.01
    • × Pulley Kit for Crusader 7.4L 454, 502 8.2L, Big Block Marine Engines 22652 3 PulleysPulley Kit for Crusader 7.4L 454, 502 8.2L, Big Block Marine Engines 22652 3 Pulleys
      2 × $229.95
    • × PlaceholderBearings
      2 × $0.01
    • × Rebuild Kit Velvet Drive V-Drive 2002 SeriesRebuild Kit Velvet Drive V-Drive 2002 Series
      4 × $749.95
    • × Pulley Crankshaft for Crusader Big Block Drives Circulating Pump and AlternatorPulley Crankshaft for Crusader Big Block Drives Circulating Pump and Alternator
      2 × $24.95
    • × Hose for Crusader From Raw Water Pump To Transmission Oil Cooler 97310 with ClampsHose for Crusader From Raw Water Pump To Transmission Oil Cooler 97310 with Clamps
      4 × $59.95
    • × PlaceholderBearings
      6 × $0.01
    • × Reverse Adapter Bearing 4840DReverse Adapter Bearing 4840D
      6 × $19.95
    • × Main Case Bearing for All Ratios EXCEPT 1.52:1 Replaces 1000-130-018Main Case Bearing for All Ratios EXCEPT 1.52:1 Replaces 1000-130-018
      4 × $69.95

    Subtotal: $7,834.97

    View cartCheckout

 

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“Bearing for Velvet Drive 71C 1004 1013 1017 Forward Piston Housing Replaces B107A” has been added to your cart. View cart
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$21.95

Vent

100 in stock

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SKU: VDVNT Categories: Transmission Parts, Parts for Velvet Drive Marine Transmissions, 71C - 1017 - 1004 Series, 71C & 1017 Series 1:1 Direct Drive, 71C Reduction Identified by having a 6 Bolt Seal Holder for Rear Seal, 1004 Series V-Drive--Engine in Very Back of Boat-Prop shaft Runs Under Motor, Hardware, 72C - 1018 - 1005 Series, Hardware, 1018 Series ***NOTE REAR SEAL TAPS DIRECTLY INTO CASE***, Hardware & Small Parts, 72 Series ***NOTE SEAL HOLDER BEHIND COUPLING***, Hardware, 1005 Series, Hardware, Hardware

Replaces OEM #'s: A4740G

Vent Breather for 71 72 1017 1018 1004 1005 and 5000 Series Borg Warner Velvet Drive transmissions.
Replaces OEM: A4740G

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Copyright 2026 © Bay Boater Marine, U.S.A.
  • Transmission Parts
    • Parts for Velvet Drive Marine Transmissions
    • HURTH HBW Series Mechanical Shift
    • Hurth HSW & ZF Series Hydraulic Shift Marine Transmissions
    • Hurth IRM Series 220 301 325 Models
    • Twin Disc Transmissions
  • Marine Engine Parts
    • Yamaha Outboard
    • Crusader Replacement Parts
    • Mercruiser Replacement Parts
  • Show All Products
  • Contact
  • Account details
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