Evinrude / Johnson outboard parts drawings * How to videos

T.C. Electroninics/Marine (Please click here for home page)

Johnson outboard washer

Lower unit outboard drain washer

  • Lower unit drain screws require Johnson outboard washers.
    Comes in pack of 5.
  • Washers are not intended to be re-used.
    Always install a new washer when re-installing drain screw.
  • Aviation gasket compound required on paper style washer / gasket
    (P/N 31170) for proper seal, only a coating of grease is required on nylon washer (P/N 31171) when pressure testing.
  • *Pressure test at 20 lbs
  • OEM 307552 (paper), P/N 311598 (nylon)

Exploded view Johnson lower unit drawings
Search by part number or description here

31171 washer

31171 washer

P/N 31170 Paper type (5 units) Johnson outboard washer OEM 307552 $4.95

P/N 31171 nylon washer (5 units) OEM 311598 $4.95