Water Pump Impeller Repair Kit for Mercury/Mariner – Replaces 47-43026T06, 8M0100526
Water Pump Impeller Repair Kit for Mercury/Mariner – Replaces 47-43026T06, 8M0100526 is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller Repair Kit for Mercury/Mariner – Replaces 47-43...
Water Pump Impeller Repair Kit for Mercury/Mariner – Replaces 47-43026T06, 8M0100526 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket water pump impeller repair kit is designed as a replacement for selected Mercury and Mariner outboard water-pump applications using the listed reference numbers. It is intended to restore water-pump sealing and impeller performance during routine cooling-system service.
Reference information identifies this impeller repair kit with Mercury Marine numbers 47-43026T06, 47-43026Q06, and 8M0100526. Similar applications may use different pump housings, plates, seals, or serial-number conditions, so confirm the complete engine model and original part number before ordering.
- Replacement impeller service kit for selected Mercury and Mariner applications.
- Helps restore water circulation and cooling-system performance when the old impeller or sealing parts are worn.
- Supplied as an aftermarket replacement; it is not a Mercury Marine OEM component.
- Installation should follow the engine manufacturer's service procedure and torque specifications.
Part Number Matrix
The following references are provided for identification and cross-reference purposes. A reference number alone does not replace model, year, serial-number, and pump-housing verification.
| Brand or Reference | Part Number | Application Note |
|---|---|---|
| Mercury Marine | 47-43026T06 | Primary OEM reference |
| Mercury Marine | 47-43026Q06 | Listed replacement reference |
| Mercury Marine | 8M0100526 | Listed replacement reference |
| Sierra | 18-3214 | Impeller repair-kit cross-reference |
| GLM | 12042 | Catalog cross-reference; verify pump-housing details |
| Mallory | 9-48313 | Catalog number reference; verify before purchase |
Engine & Model Compatibility
Compatibility depends on the complete water-pump configuration, engine model, year, stroke, and serial number. The references below are useful application leads, but they should be checked against the identification plate and the part removed from your engine.
| Brand | Application | Rated HP or Configuration | Stroke | Year Condition | Reference | Verification Note |
|---|---|---|---|---|---|---|
| Mercury | Four-cylinder outboard applications | 40–115 HP | 4-Stroke | 2001 and newer catalog application | 47-43026Q06 | Confirm model and pump-housing design |
| Mercury | Selected Verado applications | 135–275 HP | 4-Stroke | 2005 and newer catalog application | 47-43026Q06 | Confirm serial range and water-pump assembly |
| Mercury/Mariner | Applications using a large metal water-pump housing | 65–225 HP | Verify engine | Application varies by model and year | 47-43026Q06 | Housing style must match before installation |
| Mercury/Mariner | Other listed replacement applications | 40 HP and above | 2-Stroke or 4-Stroke | Varies by model and serial number | 47-43026T06 / 8M0100526 | Do not rely on horsepower alone |
Do not assume fitment from a similar horsepower rating. Mercury and Mariner engines can use different impeller dimensions, pump housings, face plates, gaskets, and serial-number break points. Compare the original part number and water-pump assembly before ordering.
Technical Specs
- Product Type
- Water pump impeller repair kit
- Replacement Type
- Aftermarket replacement
- Primary OEM Reference
- 47-43026T06
- Additional References
- 47-43026Q06 and 8M0100526
- Known Aftermarket Reference
- Sierra 18-3214
- Installation
- Service replacement; follow the applicable manufacturer's procedure
What's in the Box
This listing is for a water-pump impeller repair kit. Kit contents can vary by production batch and application, so compare the supplied parts with the pump components being replaced before disassembly.
- Water-pump impeller
- Impeller key
- Application-specific gaskets and sealing components
- Additional water-pump service components as supplied for the applicable kit configuration
Installation Notes
- Identify the engine model, year, stroke, and serial number, then compare the original impeller and water-pump components with the replacement kit.
- Disconnect the battery and place the engine in a safe service position. Follow the manufacturer's safety instructions.
- Remove the lower unit according to the applicable service manual, supporting it securely during removal.
- Open the water-pump assembly and note the impeller-key location, impeller rotation direction, and order of the seals and gaskets.
- Remove the old impeller, key, gaskets, and other service parts being replaced. Inspect the housing and face plate for scoring, distortion, melting, or excessive wear.
- Replace damaged housing or face-plate components before installing the new impeller. A worn housing can cause poor water flow and premature impeller failure.
- Install the new key and impeller in the correct orientation. Use the manufacturer's recommended lubricant or installation method.
- Install the new gaskets, seals, and O-rings in their correct locations. Do not reuse damaged sealing components.
- Reassemble the water-pump housing and tighten fasteners to the manufacturer's specified torque.
- Reinstall the lower unit, ensuring correct alignment of the driveshaft, shift shaft, and water tube.
- Run the engine only with an appropriate water supply and verify a steady tell-tale stream. Stop immediately if the engine overheats or water flow is abnormal.
Troubleshooting & FAQ
How do I confirm that this kit fits my engine?
Compare your engine's model, year, stroke, serial number, original impeller, and water-pump housing with the listed references. The safest check is a matching OEM part number together with a matching pump configuration. Horsepower alone is not sufficient.
What are the signs of a failing water-pump impeller?
Common signs include a weak or intermittent tell-tale stream, overheating warnings, rising engine temperature, or steam from the exhaust. Stop operation and inspect the cooling system promptly to avoid engine damage.
How often should the impeller be replaced?
Inspect the impeller according to the engine manufacturer's maintenance schedule. Replacement intervals depend on operating hours, storage conditions, and exposure to sand, silt, salt water, or prolonged storage.
Can I use this kit with a damaged pump housing?
No. Deep grooves, scoring, distortion, melting, or excessive corrosion in the housing or face plate can prevent proper sealing and water flow. Replace damaged pump components before installing a new impeller.
Which way should the impeller vanes face?
Install the impeller according to the shaft-rotation direction specified by the engine service manual. Do not rely on a generic clockwise instruction because shaft rotation and installation orientation can vary by application.
Is this an OEM part?
No. This is an aftermarket replacement kit that references the listed Mercury Marine part numbers for identification and application matching. Mercury, Mariner, Sierra, GLM, and Mallory are trademarks of their respective owners.
Safety & Important Info
- Verify the engine model, year, stroke, serial number, original part number, and pump-housing configuration before purchase.
- Do not operate an outboard without an adequate water supply.
- Use the correct service manual for torque values, seal locations, lower-unit removal, and impeller orientation.
- Professional installation is recommended when lower-unit or water-pump service procedures are unfamiliar.
- Images and reference numbers are for identification; supplied kit contents may vary by application.
About Sea Sierra
- Marine Replacement Parts — We supply aftermarket components for routine marine maintenance and repair.
- Application-Focused Information — Product references are presented to help customers compare parts before ordering.
- Support for Maintenance Projects — Always verify the complete engine and component details for a correct installation.
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