• 0311598 Evinrude Johnson Washer | Genuine OEM BRP Outboard Part
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0311598 Evinrude Johnson Washer | Genuine OEM BRP Outboard Part

0311598 Evinrude Johnson Washer | Genuine OEM BRP Outboard Part

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$2.24 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Genuine BRP Gearcase Drain and Fill Plug Washer - Part Number: 0311598

A genuine BRP sealing washer used beneath the lower-unit drain and fill screws on Evinrude, Johnson and OMC marine gearcases. The washer creates a fluid-tight seal around the threaded plug, helping retain gear lubricant and prevent water entering the lower unit.

⚙️ Key Features

  • Genuine BRP OEM drain-plug washer
  • Correct OMC part number 0311598
  • Seals lower-unit drain and fill screws
  • Suitable for magnetic and non-magnetic plug applications where specified
  • Replace whenever the gearcase plug is removed

🚤 Compatibility

Commonly used on

  • Evinrude and Johnson outboard lower units
  • OMC inboard and sterndrive gearcases
  • OMC sail-drive and marine-transmission housings
  • Gearcases using drain or fill screws 0307551 or 0318544

Typically suits

  • Engine and drive applications:
  • Evinrude and Johnson small-outboard gearcases
  • Evinrude and Johnson midrange outboard gearcases
  • Evinrude and Johnson V4 and V6 gearcases
  • Evinrude E-TEC and E-TEC G2 gearcases where 0311598 is specified
  • OMC Cobra and related sterndrive lubricant plugs
  • OMC inboard and sail-drive fill and drain plugs
  • HP Range: Gearcase controlled
  • Engine Type: Evinrude / Johnson / OMC outboard, inboard and sterndrive
  • Year Range: Model and gearcase controlled

🔌 Function

The washer compresses between the drain screw and gearcase housing, sealing the threaded opening against gear-oil leakage and water intrusion.

⚠️ Common Signs of Failure

  • Gear lubricant leaking around the plug
  • Water or milky contamination in the gear oil
  • Washer flattened, cracked or missing
  • Gearcase fails pressure or vacuum testing at the plug
  • Plug must be overtightened to stop leakage

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 3852105 later OMC / Volvo Penta service reference
  • 0311598 original OMC sealing-washer reference

OEM / Related Numbers

  • 0311598
  • 311598
  • 3852105
  • Commonly paired with drain screw 0307551
  • Commonly paired with magnetic drain screw 0318544

Aftermarket / Verified Equivalents

  • Sierra: 18-4248
  • Sierra: 18-4248-9
  • Mallory: 9-60408

📦 Condition

  • Genuine BRP part
  • Brand new
  • Supplied in original or equivalent packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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