Water Pump Impeller Kit with Housing – Mercury Marine Cross-Reference 47-43026T06, 8M0100526
Water Pump Impeller Kit with Housing – Mercury Marine Cross-Reference 47-43026T06, 8M0100526 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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Water Pump Impeller Kit with Housing – Mercury Marine Cross-Referen...
Water Pump Impeller Kit with Housing – Mercury Marine Cross-Reference 47-43026T06, 8M0100526 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket water pump impeller kit with housing is intended for selected Mercury Marine outboard and related marine cooling-system applications that use the listed reference numbers. It is designed to restore water-pump circulation when an impeller, housing, face plate, gaskets, seals, or related sealing components are worn.
Available cross-reference information associates this application with Mercury Marine numbers 47-43026T06, 8M0100526, and 47-43026Q06. Aftermarket reference numbers include Sierra 18-3214, GLM 12042, and Mallory 9-48313. These numbers are provided for identification and comparison; verify the complete part configuration and your engine's serial-number range before ordering.
- Replacement water-pump components for selected Mercury Marine applications.
- Includes an impeller, housing, face plate, key, gaskets, seal, and O-rings as listed below.
- Helps restore cooling-water circulation and maintain proper engine operating temperature.
- Aftermarket replacement; not manufactured by Mercury Marine, Sierra, GLM, or Mallory.
Part Number Matrix
Use the following numbers as cross-reference leads. Matching the exact number on your existing assembly is recommended before purchase.
| Brand | Reference Number | Reference Type |
|---|---|---|
| Mercury Marine | 47-43026T06 | OEM reference |
| Mercury Marine | 8M0100526 | OEM reference |
| Mercury Marine | 47-43026Q06 | OEM reference |
| Sierra | 18-3214 | Aftermarket reference |
| GLM | 12042 | Aftermarket reference |
| Mallory | 9-48313 | Aftermarket reference |
Engine & Application Information
Published catalog references associate 47-43026Q06 with selected Mercury Marine applications including certain 4-Stroke 40–115 HP four-cylinder engines from 2001 and later, and certain 2-Stroke 65–225 HP applications from 1963–1998 using a large metal housing. Another catalog lists 8M0100526 in a 40–350 HP reference range. These ranges are not a universal fitment statement: Mercury model, year, engine configuration, housing style, and serial number must all be checked together.
| Brand | Application Reference | Stroke | Rated HP | Year / Serial Conditions | Important Notes |
|---|---|---|---|---|---|
| Mercury Marine | Selected 4-cylinder outboards | 4-Stroke | 40–115 HP | 2001 and later | Catalog reference associated with 47-43026Q06; confirm the exact model and assembly. |
| Mercury Marine | Selected large-housing applications | 2-Stroke | 65–225 HP | 1963–1998 | Catalog reference specifies a large metal housing; housing style must match. |
| Mercury Marine | Selected outboard applications | Not confirmed by this reference alone | 40–350 HP catalog range | Not specified | 8M0100526 is shown in a catalog range, but the exact model, year, and serial conditions still require verification. |
Technical Specs
- Product Type
- Water pump impeller kit with housing
- Installation
- Replacement assembly; compare the original parts before installation
- Housing Color
- Black
- Fitting Type
- Application-specific direct replacement when the reference number and assembly configuration match
- Function
- Water-pump component for outboard engine cooling-water circulation
- Brand Status
- Aftermarket replacement, not an OEM component
What’s in the Box
- 1 x Impeller
- 1 x Impeller Key
- 1 x Face Plate
- 1 x Face Seal, reference 26-816575A2
- 2 x Impeller Gasket, reference 27-817277
- 1 x Impeller Gasket, reference 27-430331
- 1 x Seal Ring Gasket, reference 26-45577
- 2 x O-Ring, reference 25-21836
- 1 x Water Pump Housing
Installation Notes
- Disconnect the battery and make sure the engine is completely cool before starting work.
- Remove the lower unit or gearcase according to the service procedure for your exact engine.
- Locate and remove the water-pump housing fasteners.
- Remove the old housing, impeller, face plate, gaskets, seals, and key while noting their orientation.
- Clean all mating surfaces carefully and remove old gasket material, debris, and corrosion.
- Install the supplied gaskets, seals, face plate, key, and impeller in the correct order for your pump design.
- Install the housing over the impeller. Rotate the driveshaft in the specified direction while seating the impeller blades; follow the engine service manual.
- Secure the housing with the original fasteners and tighten them to the manufacturer's specified torque.
- Reinstall the lower unit, ensuring correct driveshaft and water-tube alignment.
- Test the engine in an appropriate water source or with the correct flushing equipment. Confirm a normal tell-tale stream and monitor for overheating.
Troubleshooting & FAQ
How do I know if my water-pump impeller needs replacing?
Common warning signs include a weak or absent tell-tale stream, overheating alarms, rising operating temperature, or a damaged, melted, cracked, or deformed impeller during inspection. Replacement intervals depend on the engine, operating conditions, and manufacturer's maintenance schedule.
Will this kit fit my specific Mercury model?
Do not rely on horsepower alone. Compare your complete OEM reference number, engine model, year, stroke, housing style, and serial-number range with the application information. If your original assembly differs from the included components or housing, do not install the kit without confirming compatibility.
What is a common cause of premature impeller failure?
Running an outboard without an adequate water supply can damage a rubber impeller within seconds. Sand, debris, corrosion, extended storage, age, and incorrect installation can also shorten service life.
Should I replace the housing with the impeller?
A worn or grooved housing or face plate can reduce pump efficiency and damage a new impeller. Because this listing includes a housing and related sealing components, compare the supplied parts with the original assembly and replace components as appropriate for the engine's service procedure.
Is this an OEM part?
No. This is an aftermarket replacement. Mercury Marine, Sierra, GLM, and Mallory names and reference numbers are used only to identify compatibility and cross-reference applications.
What should I do if the reference number matches but the parts look different?
Do not force installation. Confirm the engine's exact model, year, stroke, serial range, housing design, and original component arrangement before ordering or installing the kit.
Shipping speed and cost
Typical transit is 5–15 days. Standard shipping is free for most orders, and any available expedited options are shown at checkout.
Warranty and returns
This part is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window when the part is unused and in its original condition. Contact support with your order details for assistance.
Safety & Important Information
- Verify the exact OEM reference, engine model, year, stroke, housing style, and serial-number range before purchase.
- Confirm that the supplied housing, impeller, face plate, key, gaskets, seals, and O-rings match your original water-pump assembly.
- Never operate an outboard without an adequate water supply and proper flushing equipment.
- Follow the manufacturer's service manual for torque values, sealants, lubrication, alignment, and testing procedures.
- This is an aftermarket replacement, not an OEM component. Brand names are used for reference only.
- Professional installation is recommended. Incorrect installation can cause loss of cooling water and serious engine damage.
About Sea Sierra
- Pro-Grade Standards — We supply marine replacement parts designed for dependable real-world service.
- Fast Global Fulfillment — Free standard delivery is available to most regions, typically arriving in 5–15 days.
- Manufacturer-Direct Value — We work to provide practical replacement solutions at competitive prices.
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