268164641 Mercury MerCruiser Seal | Genuine Quicksilver OEM Part
268164641 Mercury MerCruiser Seal | Genuine Quicksilver OEM Part
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🔧 Product Description
Genuine Quicksilver Shift Shaft Oil Seal - Part Number: 26-8164641
A genuine Quicksilver lower-unit shift-shaft oil seal for selected Mercury and Mariner outboards and MerCruiser Vazer drive assemblies.
The seal fits around the shift shaft within the gear housing or bell-housing assembly. It retains gear lubricant inside the housing while preventing water and external contamination from entering around the moving shaft.
⚙️ Key Features
- Genuine Quicksilver OEM shift-shaft oil seal
- Correct original Mercury part number 26-8164641
- Superseded by current seal 26-8M0204708
- Retains gear lubricant and blocks water entry
- Cross-references with Sierra, GLM, Mallory, Recmar and Honda seals
🚤 Compatibility
Commonly used on
- Mercury and Mariner lower-unit shift-shaft assemblies
- Gear housings using the 816464-series seal
- MerCruiser Vazer bell-housing and shift-shaft assemblies
Typically suits
- Engine models:
- Mercury / Mariner 35HP 2-stroke
- Mercury / Mariner 40HP 2-cylinder, 3-cylinder and 4-cylinder
- Mercury / Mariner 45HP 2-stroke
- Mercury / Mariner 50HP carburetted and EFI
- Mercury / Mariner 55HP and 55 SeaPro
- Mercury / Mariner 60HP carburetted, EFI and four-stroke
- Mercury / Mariner 65HP 3-cylinder
- Mercury / Mariner 70HP 3-cylinder
- Mercury / Mariner 75HP 2-stroke, four-stroke and DFI
- Mercury 80 Jet
- Mercury / Mariner 90HP 2-stroke, four-stroke and DFI
- Mercury / Mariner 100HP 2-stroke and EFI
- Mercury / Mariner 115HP 2-stroke, EFI and four-stroke
- Mercury 120HP Force-based gearcase applications
- Mercury / Mariner 125HP 2-stroke
- Mercury V135, V150, V175 and V200 2.0L / 2.5L
- Mercury XR4, Laser and Magnum II gearcase applications
- MerCruiser Vazer drive
- HP Range: 35HP - 200HP
- Engine Type: Mercury / Mariner 2-stroke, four-stroke, EFI and DFI outboard; MerCruiser Vazer
- Year Range: Approximately mid-1980s through the 2010s, dependent on gearcase and serial number
🔌 Function
The seal closes the clearance around the shift shaft, retaining lower-unit lubricant while preventing water from entering the gear housing.
⚠️ Common Signs of Failure
- Gear lubricant around the shift shaft
- Milky or water-contaminated gear oil
- Gearcase fails pressure or vacuum testing
- Corrosion around the shift-shaft bore
- Falling gear-lubricant level
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 26-8M0204708 → Supersedes 26-8164641
- 26-8164641 → Supersedes / relates to 816464
- 816464 earlier OEM seal reference
OEM / Related Numbers
- 26-8M0204708
- 8M0204708
- 26-8164641
- 8164641
- 816464
- 268164641
- 76384
Aftermarket / Verified Equivalents
- Sierra: 18-2054
- GLM: 85581
- Mallory: 9-76116
- Recmar: REC26-8164641
- Honda Marine: 91253-ZW1-003
📦 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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