Water Pump Impeller 12 Blade 831182 145410-46090 4568-0001 for Volvo Penta Yanmar Jabsco Johnson 57 mm — Germany Local Warehouse
Water Pump Impeller 12 Blade 831182 145410-46090 4568-0001 for Volvo Penta Yanmar Jabsco Johnson 57 mm — Germany Local Warehouse
Product Overview
Key drive flexible impeller, 12 blades, 57 mm diameter, 31.5 mm width, 15.8 mm shaft and a brass insert, for the raw water pumps on Volvo Penta, Yanmar, Jabsco, Johnson, Oberdorfer and Gray Marine engines. Crosses to Volvo 831182, 835182, 875573, 875575, 21951350, Yanmar 145410-46090 and 145410-46050, Jabsco 4568-0001, 4568-0001P and 4568-0003, Johnson 09-801B and Gray Marine 74366. Kept in our Germany local warehouse.
Boats that live in the water through a northern winter are hard on this part. The impeller sits folded in one position for months, takes up silt from the harbour, and by the first warm weekend of the season the vanes have gone flat. A pump in that state still moves water at idle, which is why the failure usually shows up as a temperature needle climbing at cruising speed instead of an obvious breakdown.
The keyed bore is the detail worth checking twice. These pumps carry the drive through a small steel key, and a key that has sheared leaves an impeller that looks perfect and turns freely on the shaft. If your old impeller is intact but the pump was not delivering, look at the key before ordering anything else.
Specifications
| Specification | Detail |
|---|---|
| Condition | New / New with tags |
| Type | Flexible water pump impeller |
| Blade Count | 12 |
| Outside Diameter | 57 mm (2.24 in) |
| Width | 31.5 mm (1.24 in) |
| Shaft Diameter | 15.8 mm (0.63 in) |
| Drive Type | Key drive |
| Insert Material | Brass |
| Material | Neoprene |
| Quantity | 1 impeller |
| Country of Origin | Taiwan |
Cross Reference by Pump Maker
| Pump Maker | Part Numbers |
|---|---|
| Volvo Penta | 831182, 835182, 875573, 875575 |
| Volvo Penta | 21951350 |
| Yanmar | 145410-46090, 145410-46050 |
| Jabsco | 4568-0001, 4568-0001-P, 4568-0001P |
| Jabsco | 4568-0003 |
| Johnson Pump | 09-801B |
| Oberdorfer | 6620, B6620, 8647 |
| Gray Marine | 74366 |
| Sierra | 18-3075 |
| GLM | 89530 |
| Mallory | 9-45701 |
| CEF | 500108 |
| DJ Pump | 08-22-1201 |
Compatible Engines & Pumps
| Brand | Model or Pump | Note |
|---|---|---|
| Volvo Penta | AQ131 | Pump 855517, 855578, 831178 |
| Volvo Penta | AQ140A to AQ170 | Pump 855517, 855578, 831178 |
| Volvo Penta | MD21, MD42 | Marine diesel |
| Yanmar | 3QM | Marine diesel |
| Yanmar | 145410-46090 pump family | Key drive |
| Oberdorfer | 301, 302, 303 M | Flexible impeller pump |
| Oberdorfer | 6620, B6620, 8647 | Flexible impeller pump |
| Jabsco | 4568-0001, 4568-0003 | Key drive pump |
| Johnson Pump | 09-801B | Key drive pump |
| Gray Marine | Lugger Six-226, Express Six-226 | Pump 75797 |
| Gray Marine | Six-186, Six-88, Six-104, Phantom Six-112 | Pump 75797 |
| Gray Marine | Model 100, 109, 110, 116, 118 | Pump 75797 |
Service Schedule
| Item | Recommendation |
|---|---|
| Impeller | Every 2 to 3 seasons, or every 300 hours |
| Winter layup | Change before layup, not after the first trip |
| Shaft key | Inspect at every change, replace if worn |
| Cam and cover plate | Check for grooves at every change |
| Gasket or O-ring | Replace whenever the pump is opened |
| Sea water strainer | Clean before the first run of the season |
Failure Symptoms
| Symptom | What It Points To |
|---|---|
| Temperature climbs at cruising speed | Vanes set, reduced flow |
| Weak flow after a winter layup | Neoprene has taken a permanent set |
| Rubber debris in the strainer | Vanes breaking up, flush the block |
| Impeller turns freely on the shaft | Drive key sheared |
| No noise but no water | Impeller turning without the key |
| Scored pump housing | Dry running, liner and impeller worn |
Fitting Notes
| Step | Action |
|---|---|
| 1 | Close the sea cock and drain the pump |
| 2 | Take the cover off and note the vane direction |
| 3 | Pull the impeller without prying against the housing face |
| 4 | Check the key, the shaft slot and the cam |
| 5 | Clean the gasket face and the cover plate |
| 6 | Fit the new impeller with the vanes folded the correct way |
| 7 | Fit a new gasket or O-ring and tighten the cover evenly |
| 8 | Open the sea cock and confirm flow before casting off |
What's Included
| Component | Qty |
|---|---|
| Water pump impeller, 12 blade, key drive | 1 |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Shipping from Germany
| Destination | Warehouse | Note |
|---|---|---|
| Germany | Germany local warehouse | Domestic delivery, no import duty |
| Austria, Netherlands, Belgium | Germany local warehouse | EU intra-community delivery |
| France, Italy, Spain, Poland | Germany local warehouse | EU intra-community delivery |
Before You Buy
- Check the number on the pump body, not on the engine plate
- Confirm the bore is keyed, a splined impeller will not fit
- Measure the old impeller if the number has worn off
- Check the drive key before blaming the pump
- This listing is the impeller only, not a kit and not a pump
- Change it before winter layup if the boat sits idle for months
- 30-Day Easy Returns
- Ships from our Germany local warehouse
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Before You Buy
Frequently Asked Questions
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