26830749 Mercury MerCruiser Seal | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Yellow Gear Lube Drain Screw Seal - Part Number: 26-830749

Genuine Quicksilver yellow drain screw seal used on Mercury, Mariner and MerCruiser gearcase drain, fill and vent screws. This earlier yellow seal reference is superseded by 26-8M0204693 and is used during gear oil service on supported Mercury / MerCruiser drives and lower units.

⚙️ Key Features

• Genuine Quicksilver OEM yellow drain screw seal

• Correct original Mercury part number 26-830749

• Current replacement reference 26-8M0204693

• Used under gear lube drain, fill and vent screws

• Replace during every gear oil service

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 26-8M0204693 → Supersedes 26-830749

• 26-830749 earlier yellow drain screw seal reference

OEM / Related Numbers:

• 26-830749

• 830749

• 26830749

• 26-8M0204693

• 8M0204693

• 268M0204693

• Yellow drain plug washer

• Gear lube screw seal

• Drain / fill screw seal

Aftermarket / Verified Equivalents:

• Sierra: 18-24301-9

• Mallory: 9-60105

• Recmar yellow drain plug washer equivalents

• Aftermarket yellow drain screw washer kits matching 26-830749 / 26-8M0204693

🚤 Compatibility

Commonly used on:

• Mercury / Mariner outboard gearcase drain and vent screws

• MerCruiser stern drive drain, fill and vent screws

• Gearcase oil service using yellow Mercury plug seals

Typically suits:

• Engine / drive models:

• MerCruiser Alpha One drain / fill screw applications

• MerCruiser Alpha One Gen II drain / fill screw applications

• MerCruiser Bravo One / Two / Three drain / fill screw applications

• Mercury / Mariner outboard gearcases using yellow drain plug seal 26-830749

• Mercury EFI, FourStroke, DFI, OptiMax, Verado and Racing lower units using 26-830749 or 26-8M0204693

• Engine / Drive Type: Mercury / Mariner outboard and MerCruiser stern drive

• System Type: Gear lube drain / fill / vent screw seal

🔌 Function

The seal sits beneath the drain or vent screw to stop gear oil leaking out and water entering the gearcase.

Common signs of failure:

• Gear oil leak around plug

• Milky gear oil

• Seal flattened, torn or missing

• Plug removed during oil service

• Failed lower-unit pressure test

• Replacement required at each gear oil change

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging