93210-46M16 Yamaha O-Ring | Genuine OEM Yamaha Outboard Part
93210-46M16 Yamaha O-Ring | Genuine OEM Yamaha Outboard Part
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🔧 Product Description
Genuine Yamaha Upper Crankshaft Bearing Housing O-Ring - Part Number: 93210-46M16
A genuine Yamaha engine O-ring used around the upper crankshaft bearing, oil-seal housing or crankcase end-cap assembly of selected two-cylinder and three-cylinder two-stroke outboards.
The O-ring seals the circular bearing-housing joint, preventing crankcase pressure, fuel-and-oil mixture and lubricating residue from escaping around the crankshaft support assembly.
⚙️ Key Features
- Genuine Yamaha OEM crankshaft-housing O-ring
- Correct Yamaha part number 93210-46M16
- Used in two-cylinder and three-cylinder two-stroke powerheads
- Resistant to oil, fuel mixture, heat and crankcase pressure
- WSM, Cometic, Recmar and aftermarket replacements available
🚤 Compatibility
Commonly used on
- Yamaha two-stroke crankshaft and piston assemblies
- Upper crankshaft bearing and seal-housing joints
- Two-cylinder and three-cylinder crankcase assemblies
Typically suits
- Engine models:
- Yamaha 9.9HP two-cylinder two-stroke
- Yamaha 13.5HP two-stroke
- Yamaha 15HP two-cylinder two-stroke
- Yamaha 25HP two-stroke
- Yamaha 30HP two-stroke
- Yamaha 40HP three-cylinder two-stroke
- Yamaha 50HP three-cylinder two-stroke
- Yamaha 60HP three-cylinder two-stroke
- Yamaha 70HP three-cylinder two-stroke
- Yamaha 75HP three-cylinder two-stroke
- Yamaha 80HP three-cylinder two-stroke
- Yamaha 85HP three-cylinder two-stroke
- Yamaha 90HP three-cylinder two-stroke
- Yamaha 15MSH, 70TLR, 75A, 80A, 85A, 90A and C90 engine families
- HP Range: Approximately 9.9HP - 90HP
- Engine Type: Yamaha two-cylinder and three-cylinder carburetted two-stroke outboard
- Year Range: Approximately 1980s through the late 2000s, dependent on crankshaft assembly.
🔌 Function
The O-ring seals the crankshaft bearing or end-cap housing to the crankcase, maintaining crankcase compression and preventing oil-and-fuel residue from leaking around the housing.
⚠️ Common Signs of Failure
- Oil or fuel residue around the crankcase joint
- Loss of crankcase sealing
- Poor idle or reduced cylinder performance
- O-ring is flattened, hardened or split
- Leakage begins after crankshaft or bearing service
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 93210-46M16 current Yamaha engine O-ring reference
OEM / Related Numbers
- 93210-46M16
- 93210-46M16-00
- Yamaha upper crankshaft O-ring
- Yamaha crankshaft and piston assembly O-ring
- S18-76690 aftermarket reference
Aftermarket / Verified Equivalents
- WSM: 527-10A5
- Cometic: 10-2223
- Recmar: REC93210-46M16
- ComponentsPlus: 527-10A5
- Aftermarket Yamaha engine O-ring: 93210-46M16 replacement
📦 Condition
- Genuine Yamaha 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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