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These adaptors are for the S-33 Gearcase Filler. All adaptors have a standard 3/8-16 female thread.


Don't forget that some Mercs & Evinrudes have Yamaha or Suzuki fittings!

Gearcase Filler Adaptors

PriceFrom $6.00
  • Part No. Description
    334Y 8mm for the metrics (Honda, Yamaha)
    334Z 10mm for Suzuki
    33DP OMC/Volvo duoprop
    33X Extension, standard 3/8-16 for Merc Bravo




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