Water Pump Impeller 369-650211M 47-16154-3 for Tohatsu Nissan Mercury Mariner 2 2.5 3.3 3.5 4 5 6 HP 2-Stroke Outboard — United Kingdom Local Warehouse
Water Pump Impeller 369-650211M 47-16154-3 for Tohatsu Nissan Mercury Mariner 2 2.5 3.3 3.5 4 5 6 HP 2-Stroke Outboard — United Kingdom Local Warehouse
Product Overview
Water pump impeller part for Tohatsu, Nissan, Mercury and Mariner two stroke outboards from 2 HP to 6 HP, a 6 blade impeller at 33.75 mm outside diameter, 10.25 mm bore and 14.3 mm deep. It replaces 369-650211M and 369650211, Mercury 47-16154-3 and 47-8M0204676, and crosses to Sierra 18-3098. Kept in our United Kingdom local warehouse.
Small tenders and outboards that sit on a mooring through the winter are the hardest on this part. The impeller runs dry for a few seconds at every start, takes up salt and grit with the cooling water, and then sits folded in one position for months. A vane that has taken a permanent set will not straighten out in the spring, no matter how good the rest of the pump is.
Change it before the season rather than after a problem, and look at the pump housing while the lower unit is down. Vanes that come out with pieces missing have already sent rubber into the water jacket, and the block needs flushing before the new impeller goes in.
Specifications & Attributes
| Specification | Detail |
|---|---|
| Condition | New / New with tags |
| Type | Water pump impeller |
| Engine | Tohatsu, Nissan, Mercury and Mariner outboard |
| Horsepower | 2 HP to 6 HP two stroke |
| Blade Count | 6 |
| Net Weight | 6 g |
| Quantity | 1 impeller |
| Country of Origin | Taiwan |
Measurements
| Measurement | Metric | Imperial |
|---|---|---|
| Outside diameter | 33.75 mm | 1.33 in |
| Shaft bore | 10.25 mm | 0.40 in |
| Depth | 14.3 mm | 0.56 in |
| Blade count | 6 blades | 6 blades |
| Weight | 6 g | 0.21 oz |
OEM Cross Reference
| Brand | OEM Part Numbers |
|---|---|
| Tohatsu | 369-650211M, 369650211 |
| Nissan | 369-650210M, 369650210 |
| Mercury | 47-16154-3, 47-161543, 47-16154 |
| Mercury | 47-8M0204676 |
| Sierra | 18-3098 |
Compatible Engines
| Brand | Model Range | Horsepower |
|---|---|---|
| Tohatsu | M2, M2.5, M3.5, M4, M5, M6 two stroke | 2 HP, 2.5 HP, 3.5 HP, 4HP, 5 HP, 6 HP |
| Nissan | NS2.5, NS3.5, NS4, NS5, NS6 two stroke | 2.5 HP, 3.5 HP, 4HP, 5 HP, 6 HP |
| Mercury | 2, 2.5, 3.3, 4, 5, 6 two stroke | 2 HP, 2.5 HP, 3.3 HP, 4HP, 5 HP, 6 HP |
| Mariner | 2.5, 3.3, 4, 5, 6 two stroke | 2.5 HP, 3.3 HP, 4HP, 5 HP, 6 HP |
Service Notes
| Item | Recommendation |
|---|---|
| Service interval | Every season, or every 100 hours of running |
| Winter layup | Change before layup, not after |
| Tell tale check | Strong steady stream within ten seconds of start |
| Housing check | Look for grooves where the vanes run |
| Plate check | Scoring here wears a new impeller quickly |
| Flush routine | Fresh water flush after every salt water use |
Signs the Impeller Needs Changing
| Symptom | What It Points To |
|---|---|
| Tell tale weaker than last season | Vanes set or worn |
| No water at start up | Failed impeller or blocked inlet |
| Temperature rising at low throttle | Reduced flow on a small block |
| Rubber debris in the tell tale | Vanes breaking up, flush the block |
| Whine from the lower unit | Dry running from a failed impeller |
What's Included
| Component | Qty |
|---|---|
| Water pump impeller | 1 |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Shipping from United Kingdom
| Destination | Warehouse | Note |
|---|---|---|
| United Kingdom | United Kingdom local warehouse | Domestic delivery, no import duty |
| Ireland | United Kingdom local warehouse | Short transit, customs may apply |
| EU destinations | United Kingdom local warehouse | Customs cleared on arrival |
Before You Buy
- Confirm the motor is a two stroke in the 2 HP to 6 HP range
- Check the number on the old impeller before ordering
- Check the pump housing and wear plate for grooves
- Fit the vanes in the direction the shaft turns
- Flush the block if the old impeller lost vanes
- Run on muffs and watch the tell tale before launching
- 30-Day Easy Returns
- Ships from our United Kingdom local warehouse
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