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Water Pump Impeller – Fits Mercury/Mariner 2–3.3HP (Replaces 47-95289-2)

Sale price $12.98 Regular price $20.00
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Water Pump Impeller – Fits Mercury/Mariner 2–3.3HP (Replaces 47-95289-2) is backordered and will ship as soon as it is back in stock.


Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This Water Pump Impeller – Fits Mercury/Mariner 2–3.3HP (Replaces 47-95289-2) is a crucial component for maintaining your engine's cooling system. It is designed for a wide range of small outboard motors, including Mercury/Mariner 2HP to 3.3HP models from the early 1990s through the 2000s, Johnson/Evinrude/OMC 2HP to 3.3HP models from 1991–2001, and Nissan/Tohatsu 2.5HP to 3.5HP 2-Stroke models from 2002–2005.

This part offers a direct interchange with multiple OEM and aftermarket numbers, including Quicksilver 47-952892 (which supersedes 47-95289), Sierra Marine 18-45312, CEF 500396, Johnson/Evinrude 114812, and Nissan/Tohatsu 309-65021-1.

  • For reliable operation, lubricate the impeller with silicone grease, glycerin, or dish soap during installation.
  • Engineered from a durable blend of hardened nylon and neoprene rubber for longevity.
  • Never run the water pump dry, as this can cause immediate damage to the impeller.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number Notes
Mercury / Mariner / Quicksilver 47-952892 Supersedes part number 47-95289-2 and 95289
Johnson / Evinrude / OMC 114812 / 0114812
Nissan / Tohatsu 309-65021-1 Also listed as 309650211M
Sierra Marine 18-45312 Aftermarket Replacement
CEF 500396 Aftermarket Replacement
MARKGOO / SouthMarine / SLSRPMT 47-952892 Aftermarket Replacement

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Mercury/Mariner Owners: This impeller fits various 2-stroke models from 2HP to 3.3HP. Check your engine's serial number against the ranges listed in the table to ensure correct fitment.

Brand Rated HP Stroke Years / Serial OEM Part No. Notes
Mercury 2HP 2-Stroke 8075603 & UP 47-95289-2
Mercury 2HP 2-Stroke 0T894577 & UP 47-95289-2
Mercury 2HP 2-Stroke 0T884302 THRU 0T894576 47-95289-2
Mariner 2HP 2-Stroke 1991 (7002201YK) 47-95289-2
Mercury 2.2HP 2-Stroke 8075603 & Up 47-95289-2 Model 2.2M
Mercury 2.5HP 2-Stroke 0A855097 THRU 0G710612 47-95289-2
Mercury 2.5HP 2-Stroke 0T894577 & UP 47-95289-2
Mercury 2.5HP 2-Stroke 0P401000 & UP 47-95289-2
Mercury 2.5HP 2-Stroke 0P017000 THRU 0P400999 47-95289-2
Mercury 2.5HP 2-Stroke 0G710613 THRU 0T894576 47-95289-2
Mercury 3HP 2-Stroke 0A855097 THRU 0G710612 47-95289-2
Mercury 3.3HP 2-Stroke 0D901217 THRU 0G710612 47-95289-2 Non-Shift
Mercury 3.3HP 2-Stroke 0T894577 & UP 47-95289-2
Mercury 3.3HP 2-Stroke 0P401000 & UP 47-95289-2
Mercury 3.3HP 2-Stroke 0P017000 THRU 0P400999 47-95289-2
Mercury 3.3HP 2-Stroke 0G710613 THRU 0T894576 47-95289-2

For Johnson/Evinrude Owners: Fits specific 2HP, 2.3HP, 3HP, and 3.3HP models manufactured between 1991 and 2001.

Brand Rated HP Years OEM Part No.
Johnson Evinrude 2HP 1993–2001 114812/0114812
Johnson Evinrude 2.3HP 1996–1999 114812/0114812
Johnson Evinrude 3HP 1998, 2000–2001 114812/0114812
Johnson Evinrude 3.3HP 1991–1997 114812/0114812

For Nissan/Tohatsu Owners: Compatible with 2.5HP and 3.5HP 2-stroke models from 2002 to 2005.

Brand Rated HP Stroke Years OEM Part No. Notes
Nissan Tohatsu 2.5HP 2-Stroke 2002–2005 309-65021-1 Models NS2.5A2, NS2.5A, M2.5A, M2.5A2
Nissan Tohatsu 3.5HP 2-Stroke 2002–2005 309-65021-1 Models NS3.5A2, NS3.5A, M3.5A, M3.5A2

Technical Specs

Product Type
Water Pump Impeller
Housing Material
Hardened Nylon and Neoprene Rubber
Housing Color
Black
Impeller Height
14.3 mm (0.56 in)
Overall Diameter
43 mm (1.69 in)
Shaft Diameter
12 mm (0.47 in)
Fitting Type
Double Key Internal
Number of Blades
6
Weight
9.92 g (0.35 oz)

What’s in the Box

  • 1 x Water Pump Impeller (47-95289-2 / 47-952892)

Installation Notes

Professional installation is recommended. The following steps are a general guide:

  1. Disconnect the spark plug wire(s) and battery cables.
  2. Place the outboard in neutral and remove the lower unit (gearcase).
  3. Unbolt and carefully lift the water pump housing.
  4. Take note of the old impeller's blade orientation before sliding it off the driveshaft.
  5. Remove the old gaskets, wear plate, and drive key.
  6. Thoroughly clean all mating surfaces and inspect for any damage or corrosion.
  7. Install the new wear plate and gaskets.
  8. Insert the drive key and slide the new impeller onto the driveshaft.
  9. Generously lubricate the impeller and the inside of the housing with silicone grease or dish soap.
  10. Reinstall the housing, turning the driveshaft clockwise to seat the impeller blades correctly.
  11. Reattach the lower unit, ensuring the shift shaft and water tube are properly aligned.
  12. Once assembled, test the engine in water to confirm a steady stream from the tell-tale outlet.

Troubleshooting & FAQ

How do I know if this impeller is failing?

Common signs of a worn or damaged impeller include a weak or non-existent water stream from the "tell-tale" outlet, engine overheating alerts, or a melted water pump housing. Upon inspection, look for blades that are cracked, brittle, torn, or permanently curved.

How often should I replace my impeller?

For preventative maintenance, it is recommended to replace your water pump impeller annually or every 100 hours of use, whichever comes first. This is especially important if you operate in saltwater or sandy/silty conditions.

Will this fit my specific engine serial number?

This impeller is designed for a broad range of models. We strongly recommend you check the "Engine & Model Compatibility" tables on this page. For Mercury and Mariner engines, cross-referencing your serial number is the best way to guarantee a perfect match.

What does "Double Key Internal" fitting mean?

This refers to the impeller's inner bore design. It has two flat-sided notches (keyways) that align with corresponding flat spots on the engine's driveshaft. This ensures the impeller spins with the shaft without slipping. Please verify your shaft uses this design before ordering.

Is this an OEM or aftermarket part?

This listing is for a high-quality aftermarket replacement part, not an OEM component. It is engineered to meet or exceed OEM specifications using comparable materials and is manufactured in an ISO 9001 certified facility with batch inspections for quality control.

What are the shipping speed and costs?

We ship worldwide, with typical transit times of 5–15 days for most regions. Standard shipping is free for most orders. Expedited shipping options, if available for your location, will be presented at checkout.

What is the warranty and return policy?

This product is covered by a 1-year warranty against manufacturing defects under normal operating conditions. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard return window for unused items in their original condition.

Safety & Important Info

  • Verify images and specifications against your original part before purchase. If anything differs—even if your model is listed as compatible—do not order.
  • This is an aftermarket replacement part, not an original equipment manufacturer (OEM) component.
  • Professional installation is highly recommended for safety, performance, and to prevent engine damage.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world reliability.
  • Fast Global Fulfillment — We offer free standard delivery to most regions, with parts typically arriving in 5–15 days.
  • Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.

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