Water Pump Impeller Repair Kit 47-43026Q06 47-43026K06 18-3265 for Mercury Mariner 40-350 HP Mercruiser Alpha One Gen II 120 Blade — Australia Local Warehouse
Water Pump Impeller Repair Kit 47-43026Q06 47-43026K06 18-3265 for Mercury Mariner 40-350 HP Mercruiser Alpha One Gen II 120 Blade — Australia Local Warehouse
Product Overview
Water pump impeller repair kit for Mercury Mariner outboards from 40 HP to 350 HP and Mercruiser Alpha One Gen II sterndrives from serial 0D469859, supplied as 1 impeller, 1 wear plate, 2 pump gaskets, 1 drive key, 1 oil seal, 2 O-rings, a grommet and washers, 262 g in total. It replaces 47-43026Q06, 47-43026Q5, 47-43026T6, 47-43026T8, 47-43026T11, 47-43026K06 and 47-8M0100526, and crosses to Sierra 18-3265. Shipped from our Australia local warehouse.
The impeller is the 47-43026T2 family with the 120 blade count, the one used across the whole 40 to 350 HP range and on the Alpha One Gen II. Because it is the high volume impeller, the same part turns up under a dozen Mercury numbers and the kit numbers differ only in what else is in the bag.
Fitment splits two ways: the sterndrive side is Alpha One Gen II from serial 0D469859, the outboard side is the Mercury Mariner 40 to 350 HP motors from 1999 on.
Specifications
| Specification | Detail |
|---|---|
| Condition | New / New with tags |
| Type | Outboard and sterndrive water pump impeller repair kit |
| Impeller Reference | 47-43026T2 family, 120 blade count |
| Components | Impeller, wear plate, 2 gaskets, key, oil seal, 2 O-rings, grommet, washers |
| Shipping Weight | 262 g |
| Country of Origin | Taiwan |
OEM Cross Reference
| Brand | Part Numbers |
|---|---|
| Mercury kit | 47-43026Q06, 47-43026Q5, 47-43026K06 |
| Mercury kit | 47-43026T6, 47-43026T7, 47-43026T8, 47-43026T10, 47-43026T11 |
| Mercury kit | 47-8M0100526, 43026Q06, 43026T2 |
| Mercury impeller | 47-43026T2, 47-430262Q02, 19210-ZW1-003, 399289, 391538 |
| Mercury wear plate | 8172761 |
| Sierra | 18-3265 |
Compatible Engines
| Application | Detail |
|---|---|
| Mercruiser Alpha One Gen II | Serial 0D469859 and above |
| Mercury Mariner outboard | 40 to 350 HP, mainly 1999 and later |
| Mercury Mariner range covered | The 35-300 HP models share this pump |
Serial Number Ranges
| Model | USA Serial | BEL Serial |
|---|---|---|
| 40 4 stroke, 2.31:1 | 0G231123-0T408999 | 9944807-0P153499 |
| 45 Bodensee | 0G231123-0T178499 | 9944807-0P094499 |
| 50 4 stroke, 2.31:1 | 0G231123-0T178499 | 9944807-0P094499 |
| 50 Bigfoot 4 stroke | 0G231123-0T178499 | 9944807-0P094499 |
| 50 3 cyl Bigfoot | 0D000750-0G589999 | 9683055-9973099 |
| 55 3 cyl Bigfoot | 0D000750 and up | 9741042 and up |
| 60 3 cyl Bigfoot | 0D000750 and up | 9683055 and up |
| 70 3 cyl | 4571652-6428680 | 9483121-9589038 |
| 80 3 cyl | 0A996142-0C221999 | 9483121-9589038 |
| 90 3 cyl | 0A996142 and up | 9483121 and up |
| 100 4 cyl | 0B209468-0G965520 | 9523034-0P058999 |
| 115 4 cyl | 0C100000 and up | 9559771 and up |
| 125 4 cyl | 0D283222 and up | 9793577 and up |
What's Included
| Component | Detail | Qty |
|---|---|---|
| Impeller | 47-43026T2 family, 120 blades | 1 |
| Wear plate | 8172761, stainless | 1 |
| Pump gaskets | 27-43033-1, 27-817277 | 2 |
| Drive key | 8M0032833 | 1 |
| Oil seal | 816597A1 | 1 |
| O-rings | 3.5 x 27 and 3.55 x 23.6 | 2 |
| Grommet and washers | Water tube and housing | Set |
Sterndrive or Outboard: Two Different Jobs
| Aspect | Alpha One Gen II | Mercury Mariner Outboard |
|---|---|---|
| Access | Split the drive from the gear housing | Drop the lower unit |
| Gear oil | Drained as part of the job, seal in the kit matters | Not touched |
| Oil seal 816597A1 | Critical, a reused one fills the drive with water | Not used |
| Serial check | 0D469859 and above | See the ranges in the table above |
| Usual mistake | Reusing the housing gasket | Impeller fitted dry or backwards |
| First check after | Gear oil colour after the first run | Telltale stream at idle |
Salt Water and the 120 Blade Impeller
| Australian Use | Effect on the Impeller | What to Do |
|---|---|---|
| Salt water left in the housing | Blades stick to the cup and tear on start | Flush on muffs after every trip |
| Sand and mud ramps | Grit scores the blades and the wear plate | Check the plate each season |
| Long runs to the shelf | Blade tips wear first | Inspect at 100 hours on working boats |
| Bar crossings and shallow channels | Silt packs the intake | Clear the intake before each run |
| Boat sitting over the wet season | Blades take a set in one position | Renew on the calendar |
| Overheat horn at planing speed | Flow below what the motor needs | Stop, check the pump before running home |
Fitting Notes
| Step | Action |
|---|---|
| 1 | Read the model and serial number, Alpha One Gen II is 0D469859 and above, outboards by the ranges above |
| 2 | Match the old housing against 47-43026Q06 or 47-43026K06, this kit covers the family |
| 3 | Check the cup and the old wear plate for scoring, the kit replaces the plate |
| 4 | On a sterndrive, fit the new oil seal 816597A1, a reused one lets water into the gear oil |
| 5 | Fold the blades in the direction of rotation and lubricate with glycerine only |
| 6 | Use both gaskets and the new O-rings, a reused gasket is the usual cause of a weep |
| 7 | Pressure test the gearcase on a sterndrive before refilling it with oil |
| 8 | Run and check the telltale, then the gear oil after the first trip |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Shipping from Australia
| Destination | Warehouse | Note |
|---|---|---|
| Australia | Australia local warehouse | Domestic delivery, no import duty |
| New Zealand | Australia local warehouse | Short transit, customs may apply |
| Pacific islands | Australia local warehouse | Tracked shipping available |
Before You Buy
- Read the serial number, Alpha One Gen II is 0D469859 and above
- Check the old housing against 47-43026Q06 or 47-43026K06
- Check the cup and wear plate for scoring
- On a sterndrive, fit the new oil seal or the gear oil goes milky
- This is the repair kit, the housing and the gearcase oil are not included
- Crosses to Sierra 18-3265 for the 35-300 HP and 350 HP models
- 30-Day Easy Returns
- Ships from our Australia local warehouse
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