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  • Welcome to BayBoater Marine LLC.
Bay Boater MarineBay Boater Marine

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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  • Account details
  • Cart / $2,571.65
      • × Reverse Spring Kit 12pcsReverse Spring Kit 12pcs
        2 × $18.95
      • × Hose Molded for Mercruiser SB Chevy from Rear Mounted Exchanger to Water Pump 32-97525Hose Molded for Mercruiser SB Chevy from Rear Mounted Exchanger to Water Pump 32-97525
        2 × $109.95
      • × Hose VST Tank to Fuel Rail for Yamaha Outboards F115 &LF115 2000-2007 68V-14807-21-00Hose VST Tank to Fuel Rail for Yamaha Outboards F115 &LF115 2000-2007 68V-14807-21-00
        1 × $109.95
      • × Seal Metal Clad Output Shaft Side Velvet Drive V-Drive Transmission 2000-044-003Seal Metal Clad Output Shaft Side Velvet Drive V-Drive Transmission 2000-044-003
        2 × $20.95
      • × Plate Kit HBW10-150 Late 8 Steel Plate KitPlate Kit HBW10-150 Late 8 Steel Plate Kit
        1 × $299.95
      • × Neutral Safety Kit--Plate Cam Switch and Hardware Replaces Velvet Drive 1004-420-052Neutral Safety Kit--Plate Cam Switch and Hardware Replaces Velvet Drive 1004-420-052
        2 × $129.95
      • × Ball & Spring Velvet Drive DetentBall & Spring Velvet Drive Detent
        1 × $6.95
      • × Plate Kit Hurth HBW20-220-250 and ZF25MPlate Kit Hurth HBW20-220-250 and ZF25M
        1 × $299.95
      • × Seal Rear Large for 1017 1018 1004 1005Seal Rear Large for 1017 1018 1004 1005
        2 × $12.95
      • × Bearing Kit 72 Series 1.52:1 OnlyBearing Kit 72 Series 1.52:1 Only
        1 × $279.95
      • × Gasket Seal Kit for HBW20-220-250 WITH THRUST WASHERSGasket Seal Kit for HBW20-220-250 WITH THRUST WASHERS
        2 × $69.95
      • × Seal fron for Hurth HBW 5 50 100 and ZF5M 6M and 10M Marine TransmissionsSeal fron for Hurth HBW 5 50 100 and ZF5M 6M and 10M Marine Transmissions
        1 × $6.95
      • × Vent Breather for Velvet Drive Replaces A4740GVent Breather for Velvet Drive Replaces A4740G
        1 × $24.95
      • × ZF 301 Seal KitZF 301 Seal Kit
        1 × $209.95
      • × Twin Disc MG506 Gasket for Main CaseTwin Disc MG506 Gasket for Main Case
        1 × $21.95
      • × Shift Cam Neutral SafetyShift Cam Neutral Safety
        1 × $59.95
      • × Rebuild Kits for Velvet Drive Marine TransmissonsRebuild Kits for Velvet Drive Marine Transmissons
        1 × $219.95
      • × Seal Rear For Borg Warner CR-2 Velvet Drive 1013 1014 Drop Center 1000-044-003Seal Rear For Borg Warner CR-2 Velvet Drive 1013 1014 Drop Center 1000-044-003
        1 × $16.95
      • × Plate Kit For Hurth HB5-50-100 and ZF5 Marine TransmissionsPlate Kit For Hurth HB5-50-100 and ZF5 Marine Transmissions
        1 × $259.95
      • × Plate for Velvet Drive Forward Bottom Clutch PlatePlate for Velvet Drive Forward Bottom Clutch Plate
        1 × $21.95
      • × Twin Disc MG506 Gasket Filter CoverTwin Disc MG506 Gasket Filter Cover
        1 × $6.95

      Subtotal: $2,571.65

      View cartCheckout

  • Checkout +
  • Cart
    • × Reverse Spring Kit 12pcsReverse Spring Kit 12pcs
      2 × $18.95
    • × Hose Molded for Mercruiser SB Chevy from Rear Mounted Exchanger to Water Pump 32-97525Hose Molded for Mercruiser SB Chevy from Rear Mounted Exchanger to Water Pump 32-97525
      2 × $109.95
    • × Hose VST Tank to Fuel Rail for Yamaha Outboards F115 &LF115 2000-2007 68V-14807-21-00Hose VST Tank to Fuel Rail for Yamaha Outboards F115 &LF115 2000-2007 68V-14807-21-00
      1 × $109.95
    • × Seal Metal Clad Output Shaft Side Velvet Drive V-Drive Transmission 2000-044-003Seal Metal Clad Output Shaft Side Velvet Drive V-Drive Transmission 2000-044-003
      2 × $20.95
    • × Plate Kit HBW10-150 Late 8 Steel Plate KitPlate Kit HBW10-150 Late 8 Steel Plate Kit
      1 × $299.95
    • × Neutral Safety Kit--Plate Cam Switch and Hardware Replaces Velvet Drive 1004-420-052Neutral Safety Kit--Plate Cam Switch and Hardware Replaces Velvet Drive 1004-420-052
      2 × $129.95
    • × Ball & Spring Velvet Drive DetentBall & Spring Velvet Drive Detent
      1 × $6.95
    • × Plate Kit Hurth HBW20-220-250 and ZF25MPlate Kit Hurth HBW20-220-250 and ZF25M
      1 × $299.95
    • × Seal Rear Large for 1017 1018 1004 1005Seal Rear Large for 1017 1018 1004 1005
      2 × $12.95
    • × Bearing Kit 72 Series 1.52:1 OnlyBearing Kit 72 Series 1.52:1 Only
      1 × $279.95
    • × Gasket Seal Kit for HBW20-220-250 WITH THRUST WASHERSGasket Seal Kit for HBW20-220-250 WITH THRUST WASHERS
      2 × $69.95
    • × Seal fron for Hurth HBW 5 50 100 and ZF5M 6M and 10M Marine TransmissionsSeal fron for Hurth HBW 5 50 100 and ZF5M 6M and 10M Marine Transmissions
      1 × $6.95
    • × Vent Breather for Velvet Drive Replaces A4740GVent Breather for Velvet Drive Replaces A4740G
      1 × $24.95
    • × ZF 301 Seal KitZF 301 Seal Kit
      1 × $209.95
    • × Twin Disc MG506 Gasket for Main CaseTwin Disc MG506 Gasket for Main Case
      1 × $21.95
    • × Shift Cam Neutral SafetyShift Cam Neutral Safety
      1 × $59.95
    • × Rebuild Kits for Velvet Drive Marine TransmissonsRebuild Kits for Velvet Drive Marine Transmissons
      1 × $219.95
    • × Seal Rear For Borg Warner CR-2 Velvet Drive 1013 1014 Drop Center 1000-044-003Seal Rear For Borg Warner CR-2 Velvet Drive 1013 1014 Drop Center 1000-044-003
      1 × $16.95
    • × Plate Kit For Hurth HB5-50-100 and ZF5 Marine TransmissionsPlate Kit For Hurth HB5-50-100 and ZF5 Marine Transmissions
      1 × $259.95
    • × Plate for Velvet Drive Forward Bottom Clutch PlatePlate for Velvet Drive Forward Bottom Clutch Plate
      1 × $21.95
    • × Twin Disc MG506 Gasket Filter CoverTwin Disc MG506 Gasket Filter Cover
      1 × $6.95

    Subtotal: $2,571.65

    View cartCheckout

 

Twin Disc

Home » Twin Disc

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Twin Disc 506 Plate Kit
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Twin Disc 506 Plate Kit

SKU: TDPK506
$679.95
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Twin Disc 506 Plate STEEL
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Twin Disc 506 Plate STEEL

SKU: TDP506S
$14.95
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Twin Disc 506A Plate Kit
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Twin Disc 506A Plate Kit

SKU: TDPK506A
$679.95
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Twin Disc MG506 Basic Overhaul Kit
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Twin Disc MG506 Basic Overhaul Kit

SKU: TDMOK506
$699.95
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Twin Disc MG506 Gasket Filter Cover
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Twin Disc MG506 Gasket Filter Cover

SKU: TDG506FH
$6.95
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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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