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Adaptors for Gearcase Leakage Testers and Filler

The adaptors pictured here from left to right are listed in the table below from top to bottom with descriptions and application guide. All adaptors have a standard 3/8-16 female thread.

                Price for each adaptor      List $6.25   Dealer $5.00

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

Part Number Description Used with
Leak testers Filler
334Y 8mm for all metrics except Suzuki x x
334Z 10mm for Suzuki x x
34SA OMC sterndrive upper gearcase housing x  
34A 1/4-20 for some small Johnson-Evinrudes x  
33DP OMC/Volvo duoprop   x
33X Extension, standard 3/8-16 for Merc Bravo   x

Return to Gearcase page

    Updated 3 March 2018