Water Pump Impeller Kit for Mercury/Mariner 30–75 HP and Force 70–75 HP Outboards – Replaces 47-19453T and 47-19453
Water Pump Impeller Kit for Mercury/Mariner 30–75 HP and Force 70–75 HP Outboards – Replaces 47-19453T and 47-19453 is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Water Pump Impeller Kit for Mercury/Mariner 30–75 HP and Force 70–7...
Water Pump Impeller Kit for Mercury/Mariner 30–75 HP and Force 70–75 HP Outboards – Replaces 47-19453T and 47-19453 is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller Kit is an aftermarket replacement designed for selected Mercury/Mariner 30–75 HP and Force 70–75 HP outboard motors. The listed applications include both 2-stroke and 4-stroke models, standard gearcases, and selected BigFoot gearcases. Always verify the exact model, year, stroke, gearcase, and serial-number range before ordering.
The kit is listed as a replacement for Mercury/Mariner 47-19453T, 47-19453T1, 47-19453T2, and 47-19453T3; Quicksilver 19453Q2; Sierra 18-8900; Mallory 9-45301; GLM 12044; and SEI Marine 96-265-03AK.
- Rubber impeller material intended for dependable water-pump service.
- Includes the impeller, key, plate, gaskets, washers, guide tube/coupler, and O-ring listed below.
- Installation requires removal and disassembly of the water-pump housing and lower unit.
Part Number Matrix
Use these references as cross-reference information only. Confirm the complete engine application before installation.
| Brand | Part Number |
|---|---|
| Mercury/Mariner | 47-19453T |
| Mercury/Mariner | 47-19453T1 |
| Mercury/Mariner | 47-19453T2 |
| Mercury/Mariner | 47-19453T3 |
| Quicksilver | 19453Q2 |
| Sierra | 18-8900 |
| Mallory | 9-45301 |
| GLM | 12044 |
| SEI Marine | 96-265-03AK |
Engine and Model Compatibility
The applications below are the listed compatibility range. Model, year, stroke, gearcase, and serial-number conditions must be considered together; horsepower alone is not sufficient to confirm fitment.
| Brand | Model/Gearcase | Rated HP | Stroke | Years | Reference | Notes |
|---|---|---|---|---|---|---|
| Mercury/Mariner | Standard Gearcase | 30 HP Jet | 4-Stroke | 1994–1995 | 47-19453T | S/N 0D000750 and up |
| Mercury/Mariner | Standard Gearcase | 35 HP | 4-Stroke | 1996–2021 | 47-19453T | EFI models |
| Mercury/Mariner | Standard Gearcase | 40 HP | 2-Stroke | 1991–1997 | 47-19453T | 3-cylinder models |
| Mercury/Mariner | Standard Gearcase | 40 HP | 4-Stroke | 1999–2021 | 47-19453T | EFI and carbureted models |
| Mercury/Mariner | Standard Gearcase | 40 HP EFI Jet | 4-Stroke | 1999–2021 | 47-19453T | SeaPro models |
| Mercury/Mariner | Standard Gearcase | 45 HP | 2-Stroke | 1994–1995 | 47-19453T | 3-cylinder Jet; S/N 0D000750 and up |
| Mercury/Mariner | Standard Gearcase | 50 HP | 2-Stroke | 1991–1997 | 47-19453T | 3-cylinder; USA S/N 0D000750–0G589999; Belgian 9683055–99773099 |
| Mercury/Mariner | Standard Gearcase | 50 HP | 4-Stroke | 1999–2021 | 47-19453T | Including EFI models |
| Mercury/Mariner | Standard Gearcase | 55 HP | 2-Stroke | 1996–1997 | 47-19453T | 3-cylinder; USA S/N 0D000750 and up; Belgian 9741042 and up |
| Mercury/Mariner | Standard Gearcase | 55 HP | 4-Stroke | 2000–2021 | 47-19453T | Including EFI models |
| Mercury/Mariner | Standard Gearcase | 60 HP | 2-Stroke | 1991–1995 | 47-19453T | 3-cylinder standard models; USA S/N 0D000750 and up; Belgian 9683055 and up |
| Mercury/Mariner | Standard Gearcase | 60 HP | 4-Stroke | 2000–2021 | 47-19453T | Including EFI models |
| Mercury/Mariner | BigFoot | 60 HP | 4-Stroke | 2000–2021 | 47-19453T | Verify the specific gearcase |
| Mercury/Mariner | Standard Gearcase | 70 HP | 4-Stroke | 1998–2021 | 47-19453T | Including selected BigFoot models |
| Mercury/Mariner | Standard Gearcase | 75 HP | 4-Stroke | 1998–2021 | 47-19453T | Including selected BigFoot models |
| Brand | Model/Gearcase | Rated HP | Stroke | Years | Reference | Notes |
|---|---|---|---|---|---|---|
| Force | Standard Gearcase | 70 HP | 2-Stroke | 1995–1999 | 47-19453T | Verify the specific model |
| Force | Standard Gearcase | 75 HP | 2-Stroke | 1995–1999 | 47-19453T | Verify the specific model |
Technical Specifications
- Product Type
- Outboard water pump impeller kit
- Installation
- Direct replacement; requires water-pump housing disassembly
- Impeller Construction
- Rubber impeller with metal insert
- Impeller Color
- Black
- Material Information
- Rubber compound intended for marine water-pump service
What's in the Box
- 1 × Water pump impeller — replaces 47-19453T
- 1 × Impeller key
- 1 × Plate — replaces 19700A2
- 1 × Guide tube/coupler — replaces 859770, 8597701, and 893857
- 2 × Washers — replace 12-858234
- 1 × Upper gasket — replaces 27-822189
- 1 × Lower gasket — replaces 27-19701
- 1 × O-ring
Installation Notes
- Disconnect the battery and place the outboard in neutral.
- Place a drain pan under the gearcase and remove the drain and vent screws to drain the gear oil.
- Remove the fasteners securing the lower unit to the driveshaft housing.
- Lower the gearcase carefully to expose the water-pump assembly.
- Remove the fasteners securing the water-pump housing cover and lift off the cover.
- Remove the old impeller from the driveshaft and note the position of the impeller key.
- Clean the housing and plate. Install the applicable gaskets, plate, impeller, and key from the kit.
- Reassemble the housing with the impeller vanes oriented correctly for the engine's rotation.
- Reinstall the lower unit, refill the gearcase with the correct gear oil, and reconnect the battery.
- Run the engine only with an appropriate water supply and verify a strong, consistent tell-tale stream.
Troubleshooting and FAQ
How do I confirm fitment?
Compare the engine brand, model, horsepower, year, stroke, gearcase, and serial number with the compatibility information above. If any condition differs, consult the engine parts manual or confirm with a qualified marine technician.
What are common signs of a failing impeller?
Symptoms may include overheating at idle or low speed, a weak or intermittent tell-tale stream, or an engine warning alarm. Stop operation and inspect the cooling system if these symptoms occur.
How often should the impeller be replaced?
Replacement intervals depend on the engine manufacturer's maintenance schedule and operating conditions. Sandy, silty, or saltwater use can accelerate wear, so inspect the impeller regularly.
Does this kit fit both 2-stroke and 4-stroke engines?
The listed applications include selected 2-stroke and 4-stroke Mercury, Mariner, and Force outboards. Confirm the complete engine and serial-number application before ordering.
Will I use every gasket and seal in the kit?
The kit covers multiple applications, so some components may remain unused. Use only the parts that correspond to the water-pump assembly on your specific engine.
Is this an OEM part?
No. This is an aftermarket replacement kit listed for the reference numbers shown above. It is not manufactured or sold as a genuine OEM component.
What are the shipping speed and cost?
Typical transit time is 5–15 days. Standard shipping is free; expedited options, when available, are shown at checkout based on the delivery location.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window for unused items in their original condition. Contact support for current instructions and eligibility.
Safety and Important Information
- Verify the engine model, year, stroke, gearcase, serial number, and original part before ordering.
- Do not operate the outboard without an adequate water supply.
- Follow the engine manufacturer's service procedures and use suitable protective equipment.
- Professional installation is recommended when lower-unit removal or water-pump service is unfamiliar.
- This is an aftermarket replacement, not a genuine OEM component.
About Sea Sierra
- Pro-Grade Standards — We supply marine replacement parts intended for demanding real-world conditions.
- Fast Global Fulfillment — Free standard delivery is available to most regions, with typical transit times of 5–15 days.
- Manufacturer-Direct Value — Competitive pricing with attention to materials and quality control.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
