Water Pump O-Ring for Yamaha Outboards – Replaces 93210-37M67, Sierra 18-7483, GLM 84300
Water Pump O-Ring for Yamaha Outboards – Replaces 93210-37M67, Sierra 18-7483, GLM 84300 is backordered and will ship as soon as it is back in stock.
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Water Pump O-Ring for Yamaha Outboards – Replaces 93210-37M67, Sier...
Water Pump O-Ring for Yamaha Outboards – Replaces 93210-37M67, Sierra 18-7483, GLM 84300 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Water Pump O-Ring is a replacement sealing ring for selected Yamaha outboard water pump assemblies. It is identified as Yamaha OEM reference 93210-37M67, Sierra reference 18-7483, and GLM reference 84300.
The O-ring is used in the water pump assembly and is not a fuel-system, fuel-tank, or WaveRunner fuel-tank component. Because Yamaha water pump components vary by model, year, and assembly configuration, confirm the exact OEM reference and application before ordering.
- Aftermarket replacement for the water pump assembly
- Replaces Yamaha OEM reference 93210-37M67
- Cross-references Sierra 18-7483 and GLM 84300
- Designed as a direct replacement when the listed reference matches your original part
- Supplied as one individual O-ring
Part Number Matrix
Use these references to compare the replacement with your original water pump O-ring.
| Brand | Part Number | Application Description |
|---|---|---|
| Yamaha | 93210-37M67 | OEM water pump O-ring reference |
| Sierra | 18-7483 | Water pump O-ring reference |
| GLM | 84300 | O-ring catalog reference for Yamaha OEM 93210-37M67 |
Engine & Model Compatibility
The references above are documented in Yamaha water pump applications and service-kit component listings. The following model and year combinations are examples associated with assemblies containing this O-ring; they do not replace verification against your engine's exact parts diagram.
| Brand | Model | Year | Component | Reference |
|---|---|---|---|---|
| Yamaha Outboard | B115 | 1998–1999 | Water pump assembly | 93210-37M67 / 18-7483 |
| Yamaha Outboard | D150 | 1997–1998 | Water pump assembly | 93210-37M67 / 18-7483 |
| Yamaha Outboard | DX150 | 1999–2005 | Water pump assembly | 93210-37M67 / 18-7483 |
| Yamaha Outboard | F225, F250, F300, F350, FL250, FL300, FL350, LF225, LF250, LF300, LF350, VF250 | Model-specific applications documented for approximately 2007–2015 | Water pump assembly | 93210-37M67 / 18-7483 |
Important: The catalog evidence covers specific model/year combinations and water pump assemblies. Do not assume that every Yamaha outboard within a horsepower range uses this O-ring. Verify the model, year, original part number, and water pump diagram before installation.
Technical Specs
- Product Type
- Water pump O-ring
- Material
- Rubber
- Yamaha OEM Reference
- 93210-37M67
- Sierra Reference
- 18-7483
- GLM Reference
- 84300
- Quantity
- 1 O-ring
- Application
- Selected Yamaha outboard water pump assemblies
What's in the Box
- 1× Water Pump O-Ring
Installation Notes
- Review the engine service manual and confirm that the original O-ring matches the listed reference.
- Place the engine in a secure position and remove the lower unit or water pump cover as required by the service procedure.
- Remove the old O-ring carefully without scratching the sealing groove or adjoining water pump components.
- Clean the groove and mating surfaces, removing debris, corrosion, and remnants of old lubricant.
- Apply only the lubricant recommended by the engine service manual, if lubrication is specified.
- Install the new O-ring evenly in its groove. Do not twist, stretch excessively, or pinch the seal.
- Reassemble the water pump components using the manufacturer's tightening sequence and torque specifications.
- After reassembly, run the engine according to the service procedure and confirm proper cooling-water flow and the absence of leaks.
Troubleshooting & FAQ
What does this O-ring seal?
This is a sealing component for selected Yamaha outboard water pump assemblies. It is not intended for a fuel system or fuel tank.
How do I know whether I need to replace it?
Replace the O-ring if it is cracked, hardened, flattened, swollen, cut, permanently compressed, or damaged during disassembly. A damaged seal can contribute to water-pump leakage or reduced cooling performance.
Does this listing include a complete water pump kit?
No. This listing is for one individual water pump O-ring only. It does not include an impeller, housing, wear plate, gasket, key, bolts, or other water pump components.
Will it fit every Yamaha 15HP–220HP outboard?
No. A broad horsepower range is not sufficient to confirm fitment. Yamaha applications vary by model, year, and water pump design. Confirm OEM reference 93210-37M67 or the corresponding catalog reference before ordering.
Is this an OEM Yamaha part?
No. This is an aftermarket replacement. Yamaha OEM reference 93210-37M67 is provided for identification and cross-reference purposes.
Can I reuse the old O-ring?
Reuse is not recommended. O-rings can develop compression set and microscopic damage even when they appear intact. Install a new seal during water pump service.
Can I install it myself?
Installation should follow the engine service manual because water pump disassembly involves the lower unit and cooling system. If you are not familiar with outboard service procedures, consult a qualified marine technician.
Safety & Important Info
- Verify the model, year, original part number, and water pump diagram before purchase.
- Do not use this product as a fuel-system or fuel-tank seal.
- This is an aftermarket replacement, not an OEM Yamaha component.
- Use the correct service-manual torque specifications and test cooling-water flow after installation.
About Sea Sierra
- Marine replacement parts selected for common outboard maintenance and repair applications.
- Clear cross-reference information to help customers compare replacement parts with their original components.
- Practical product information for routine marine service and installation planning.
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