The six-vane layout is selected for consistent water pickup in compatible Yamaha pump housings, supporting stable cooling flow at idle and under load.
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63V-44352-01 Water Pump Impeller with Key for Yamaha T8 T9.9 F9.9 F15 F20 8-20HP Outboard Motors | Quickmarine
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63V-44352-01 Water Pump Impeller with Key for Yamaha T8 T9.9 F9.9 F15 F20 8-20HP Outboard Motors | Quickmarine is backordered and will ship as soon as it is back in stock.
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63V-44352-01 Water Pump Impeller with Key for Yamaha T8 T9.9 F9.9 F...
Regular price
$12.77
Unit price
63V-44352-01 Water Pump Impeller with Key for Yamaha T8 T9.9 F9.9 F15 F20 8-20HP Outboard Motors | Quickmarine is backordered and will ship as soon as it is back in stock.
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Description
Description
Quickmarine cooling system replacement part
63V-44352-01 Water Pump Impeller with Key for Yamaha 8HP, 9.9HP, 15HP and 20HP Outboards
This compact replacement impeller is built for selected Yamaha small-horsepower outboard cooling pumps where the original reference number is 63V-44352 or 63V-44352-01-00. It is intended to restore steady water circulation through the pump housing and help protect the engine from heat-related damage during normal marine use.
Replacement for 63V-44352
6 flexible blades
Includes drive key / pin
For selected Yamaha 8-20HP models
Product Overview
The water pump impeller is a small part with a critical job. As the driveshaft rotates, the flexible vanes move cooling water from the gearcase intake through the outboard’s cooling passages. If your tell-tale stream has become weak, the engine temperature alarm appears, or the old impeller shows cracks, stiff rubber or missing blade tips, replacing the impeller is a sensible maintenance step.
This Quickmarine aftermarket impeller is designed as a service replacement for Yamaha applications that use the 63V-44352 family of part numbers. The molded neoprene rubber vane section provides flexibility inside the pump cup, while the reinforced hub and supplied key help transfer rotation from the shaft to the impeller body.
Fitment reminder: Engine year, shaft length, regional model codes and previous lower-unit changes can affect compatibility. Always compare the part number, dimensions and old impeller shape before installation.
Why Choose This Impeller
Use it when your original impeller cross-references to Yamaha 63V-44352 or 63V-44352-01-00, including common aftermarket references such as 18-3040 and 500363.
The package includes the impeller and matching key / pin, so you can replace the wear component during routine lower-unit service.
Part Number Cross Reference
Use the table below to compare the part number on your old component, service manual or parts diagram. Matching a model name alone is not enough; the part number is the most important confirmation point.
| Reference Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 63V-44352 | Primary OEM reference number |
| Yamaha | 63V-44352-01-00 | Full Yamaha-style supersession / catalog format |
| Sierra | 18-3040 | Aftermarket cross-reference |
| CEF | 500363 | Aftermarket cross-reference |
Technical Details
| Specification | Value |
|---|---|
| Product Type | Outboard water pump impeller |
| Replacement Numbers | 63V-44352, 63V-44352-01, 63V-44352-01-00 |
| Blade Count | 6 blades |
| Outside Diameter | Approximately 53.00 mm |
| Shaft Insert Diameter | Approximately 12.85 mm |
| Approximate Weight | 10 g |
| Material | Neoprene rubber vane section with hardened nylon hub construction |
| Package Includes | 1 impeller and 1 key / pin |
Compatible Yamaha Outboard Applications
The following fitment list is provided to help owners identify common Yamaha models that use this 63V-style impeller. Because Yamaha model designations vary by market and production year, please verify the pump assembly in your own parts diagram before ordering.
| Horsepower | Stroke | Model Series / Codes | Typical Year Range | Application Note |
|---|---|---|---|---|
| 8HP | 4-Stroke | T8DELH, T8DEXH, T8DPLH, T8DPLR, T8DPXH, T8DPXR | 2004/07 onward; selected models through 2010 | Lower casting drive applications |
| 8HP | 4-Stroke | T8ELH, T8ELHA/B/C, T8EXH, T8EXHB, T8PLH, T8PLHA/C/D, T8PLR, T8PLRD/Z, T8PXH, T8PXHC/D/Z, T8PXR, T8PXRB | Selected pre-2006 models and 2004-2006 variants | Lower casting drive applications |
| 9.9HP | 4-Stroke | 9.9MSH, 9.9MSHD/Z, F9.9ELR2K, F9.9MSH2K | Selected models around 2004/05 onward; some through 2009 | Confirm 63V-44352 pump part number before purchase |
| 9.9HP | 4-Stroke | T9.9ELH2, T9.9ELH2D/K, T9.9ELR2, T9.9EXH2, T9.9GELH, T9.9GEXH, T9.9GPLH, T9.9GPLR, T9.9GPXH, T9.9GPXR | 2004/05 onward; selected models through 2010 or later | Common T9.9 high-thrust applications |
| 9.9HP | 4-Stroke | T9.9LEHB, T9.9LPA, T9.9LPB, T9.9LPHB, T9.9XEHA/B, T9.9XPB, T9.9XPHA/B | Selected 2011-2017 applications | Check shaft and lower-unit configuration |
| 15HP | 2-Stroke | 15MLHX/Y, 15MSH, 15MSHA/C/D, 15MSHX | Selected 1999 onward applications | For models using the 63V impeller family |
| 15HP | 4-Stroke | F15CELH, F15CMLH, F15CMSH, F15CPLH, F15ELHA/X, F15ESHA/B/C, F15ESHK, F15ESHW/X | Selected pre-2005 and 2004/05 onward applications | Lower casting drive applications |
| 15HP | 4-Stroke | F15LEHA, F15LMHA, F15LPHA, F15MLHA/B/C/D/Z, F15MSH, F15MSHA/B/C/D, F15MSHY, F15PLHZ, F15PLR, F15PLRB, F15SEHA, F15SMHA | Selected models through 2017 | Compare old impeller dimensions before installation |
| 20HP | 4-Stroke | F20ELH, F20ELR, F20ESH, F20ESR, F20LEA, F20LEHA, F20LMHA, F20LPA, F20MLH, F20MSH, F20PLH, F20PLR, F20SEA, F20SEHA, F20SMHA | Selected 2004/06 onward applications; many 2012-2017 models | Verify by OEM number 63V-44352 or 63V-44352-01-00 |
Installation and Inspection Guidance
Before servicing the pump, make sure the outboard cannot start accidentally and that the lower unit is supported securely. Remove the gearcase according to the service procedure for your specific model, then open the water pump cover and note the direction in which the old vanes are folded. Cleaning the housing, plate and cup before assembly helps the new impeller seat correctly.
- Lightly lubricate the impeller and pump cup with a suitable marine-safe lubricant or glycerin during assembly.
- Install the supplied key / pin in the shaft slot and keep it aligned while lowering the impeller into position.
- Turn the driveshaft in the normal rotation direction as you guide the vanes into the pump housing.
- Do not run the engine dry after installation. Test only with the motor submerged or with an approved flushing setup.
- Confirm a strong tell-tale water stream and monitor temperature during the first test run.
If the pump housing, wear plate, gasket or cup is scored, warped or heavily corroded, replacing the impeller alone may not restore full cooling performance.
Frequently Asked Questions
Is this an original Yamaha part?
No. This is an aftermarket replacement impeller supplied by Quickmarine. It is made to replace the listed Yamaha reference numbers but is not manufactured or endorsed by Yamaha.
How can I confirm this is the right impeller?
Check the OEM number in your parts diagram or on your previous pump service records. The safest match is 63V-44352, 63V-44352-01 or 63V-44352-01-00, together with the approximate 53.00 mm outside diameter and 12.85 mm shaft insert diameter.
What symptoms suggest the impeller needs replacement?
Weak tell-tale flow, overheating, steam, damaged vanes, hardened rubber, cracked blade roots or missing rubber pieces are common signs that the impeller should be inspected and replaced.
Does the package include the installation key?
Yes. The package includes one impeller and one key / pin for installation.
Important Purchase Notes
Please compare your original impeller and confirm the pump part number before ordering. Product photos, old component measurements, engine serial data and your official parts diagram should all point to the same replacement. If your engine has been modified or the lower unit has been changed, rely on the pump assembly currently installed rather than model year alone.
Quickmarine supplies aftermarket marine replacement parts. Yamaha, Sierra, CEF and all related model names or part numbers are used only for compatibility identification. This product is not an OEM component and is not affiliated with or endorsed by those brands.
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