26M0204693 Mercury MerCruiser Seal | Genuine Quicksilver OEM Part
26M0204693 Mercury MerCruiser Seal | Genuine Quicksilver OEM Part
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🔧 Product Description
Genuine Quicksilver Yellow Gear Lube Drain Screw Seal - Part Number: 26-8M0204693
Genuine Quicksilver yellow drain screw seal used on Mercury, Mariner and MerCruiser gearcase drain, fill and vent screws. This current yellow seal supersedes 26-830749 and should be replaced during every gear lube service.
⚙️ Key Features
- Genuine Quicksilver OEM yellow drain screw seal
- Correct current Mercury part number 26-8M0204693
- Supersedes 26-830749
- Used under Mercury / MerCruiser drain, fill and vent screws
- Recommended replacement during every gear oil change
🚤 Compatibility
Commonly used on
- Mercury / Mariner outboard gearcase drain and vent screws
- MerCruiser sterndrive drain, fill and vent screws
- Standard Mercury gear lube service using yellow 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 drain / fill screw applications
- MerCruiser Bravo Two drain / fill screw applications
- MerCruiser Bravo Three drain / fill screw applications
- Mercury / Mariner outboard gearcases using yellow drain plug seal 26-8M0204693
- Mercury EFI, FourStroke, DFI, OptiMax, Verado and Racing lower units using the standard yellow gear lube screw seal
- Engine / Drive Type: Mercury / Mariner outboard and MerCruiser stern drive
- System Type: Gear lube drain / fill / vent screw seal
🔌 Function
The seal compresses under the drain, fill or vent screw to stop gear oil leaks and prevent water intrusion at the screw seat.
⚠️ Common Signs of Failure
- Gear oil leaking 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
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 26-8M0204693 → Supersedes 26-830749
- 26-830749 earlier yellow drain screw seal reference
OEM / Related Numbers
- 26-8M0204693
- 8M0204693
- 268M0204693
- 26M0204693
- 26-830749
- 830749
- 26830749
- Yellow drain screw seal
- Gear lube drain plug washer
- Drain / fill screw seal
- 22-8M0058389 related magnetic drain screw kit
- 10-79953Q04 related magnetic drain screw
Aftermarket / Verified Equivalents
- Sierra: 18-24301-9
- Mallory: 9-60105
- Recmar drain screw washer equivalents for 26-8M0204693 / 26-830749
- Aftermarket yellow drain plug washer kits matching Mercury gear lube screws
📦 Condition
- Genuine Quicksilver part
- Brand new
- Supplied in original or equivalent packaging
Shipping & Delivery
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
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?
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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