Water Pump Housing O-Ring – Fits Yamaha Marine Outboard (Replaces 93210-45161, 18-71332)
Water Pump Housing O-Ring – Fits Yamaha Marine Outboard (Replaces 93210-45161, 18-71332) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Housing O-Ring – Fits Yamaha Marine Outboard (Replaces 9...
Water Pump Housing O-Ring – Fits Yamaha Marine Outboard (Replaces 93210-45161, 18-71332) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Housing O-Ring is designed as a direct replacement for Yamaha Marine outboard engines. Engineered from durable rubber material, it delivers a strong seal to prevent water leaks and ensure reliable pump operation across a wide range of Yamaha outboard applications.
This o-ring cross-references OEM part number 93210-45161 and aftermarket equivalents including Sierra 18-71332 and GLM 84310.
- Direct replacement for worn or damaged o-rings
- Wear-resistant rubber construction for extended service life
- Simple installation with no special tools required
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 93210-45161 | OEM Reference |
| Sierra | 18-71332 | Aftermarket |
| GLM | 84310 | Aftermarket |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | OEM Part No. | Notes |
|---|---|---|
| Yamaha | 93210-45161 | Compatible with Yamaha Marine Outboards |
Technical Specs
- Material
- Rubber
- Type
- Water Pump Housing O-Ring
- Application
- Marine Outboard
- Brand Compatibility
- Yamaha
- OEM Reference
- 93210-45161
What's in the Box
- 1× O-Ring
Installation Notes
- Disconnect the fuel line and remove the lower unit according to your service manual.
- Remove the water pump housing and locate the old o-ring.
- Clean the o-ring groove thoroughly, removing any debris or old seal material.
- Lightly lubricate the new o-ring with water-resistant marine grease.
- Seat the new o-ring evenly into the housing groove, ensuring no twists or kinks.
- Reassemble the water pump housing and lower unit, torquing fasteners to specification.
- Reconnect the fuel line and test the engine, checking for proper water flow through the tell-tale.
Troubleshooting & FAQ
How do I know if my water pump o-ring needs replacement?
Signs include reduced water flow from the tell-tale, engine overheating, visible cracks or compression set on the old o-ring, or water leaking from the pump housing seam during operation.
Can I reuse the old o-ring during reassembly?
No. O-rings are designed for single use. Reusing a compressed or aged seal increases the risk of leaks and overheating. Always install a new o-ring when servicing the water pump.
What lubricant should I use on the o-ring?
Use a water-resistant marine grease or the manufacturer-recommended lubricant. Avoid petroleum-based products that may degrade rubber seals over time.
How often should I replace this o-ring?
Replace the o-ring whenever you service the water pump impeller, typically every 2–3 years or 200–300 hours of operation, whichever comes first. Also replace if you notice any loss of seal integrity.
Will this fit my specific Yamaha outboard year and model?
This o-ring is compatible with Yamaha outboards that originally used part number 93210-45161. Compare your existing part with the product images and verify the OEM number in your service manual before purchasing.
Can I install this myself or do I need a mechanic?
If you have basic mechanical skills and the proper service manual, you can install this o-ring yourself. However, professional installation is recommended if you are unfamiliar with lower unit disassembly or water pump servicing.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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