Water Pump Repair Kit – Fits Mercury 75–150 HP 4-Stroke Outboards (Replaces 8M0094529, 8M0094259, 8M0057715)
Water Pump Repair Kit – Fits Mercury 75–150 HP 4-Stroke Outboards (Replaces 8M0094529, 8M0094259, 8M0057715) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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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 Repair Kit – Fits Mercury 75–150 HP 4-Stroke Outboards (...
Water Pump Repair Kit – Fits Mercury 75–150 HP 4-Stroke Outboards (Replaces 8M0094529, 8M0094259, 8M0057715) is backordered and will ship as soon as it is back in stock.
Product Details
This complete Water Pump Repair Kit – Fits Mercury 75–150 HP 4-Stroke Outboards provides everything needed to restore your cooling system. It is designed for Mercury/Mariner 75–115 HP (2.1L) four-stroke outboards (serial number 2B094996 and up) and Mercury 150 HP EFI 4-Stroke models (serial number 1B905505 and up).
The kit serves as a direct interchange for Mercury part numbers 8M0094529, 8M0094259, and 8M0057715, as well as aftermarket equivalents like GLM 12161.
- Engineered for direct OEM replacement and fitment.
- Constructed from marine-grade materials for saltwater and freshwater use.
- Includes the impeller, housing, face plate, gaskets, and seals for a full rebuild.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 8M0094529 |
| Mercury | 8M0094259 |
| Mercury | 8M0057715 |
| GLM | 12161 |
| XRmarine | AM8M0094529 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is verified for the following Mercury and Mariner four-stroke outboard models. Serial number is the most accurate way to confirm fitment.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | 4-Stroke Outboard | 75 HP | 4-Stroke | 2B094996 and Up | 8M0094529 | 2.1L engine |
| Mercury | 4-Stroke Outboard | 80 HP | 4-Stroke | 2B094996 and Up | 8M0094529 | 2.1L engine |
| Mercury | 4-Stroke Outboard | 90 HP | 4-Stroke | 2B094996 and Up | 8M0094529 | 2.1L engine |
| Mercury | 4-Stroke Outboard | 100 HP | 4-Stroke | 2B094996 and Up | 8M0094529 | 2.1L engine |
| Mercury | 4-Stroke Outboard | 115 HP | 4-Stroke | 2B094996 and Up | 8M0094529 | 2.1L engine |
| Mercury | 4-Stroke EFI | 150 HP | 4-Stroke | 1B905505 and Up | 8M0094529 |
Technical Specs
- Product Type
- Complete Water Pump Repair Kit
- Installation
- Direct OEM replacement
- Housing Material
- Marine-grade materials
- Weight
- 0.68 kg (1.5 lbs)
- Other Technical Attributes
- For 4-stroke engines only; not compatible with 2-stroke models
What’s in the Box
- 1 x Upper Housing
- 1 x Lower Housing
- 1 x Impeller (Replaces 47-43026T2)
- 1 x Face Plate
- 1 x Key
- 1 x Set of Gaskets
- 1 x Set of Seals
Installation Notes
- Disconnect the battery and shift the outboard into neutral.
- Remove the lower unit (gearcase) by unbolting it from the engine's midsection.
- Locate and unbolt the water pump housing on top of the lower unit.
- Carefully remove the old impeller, gaskets, seals, and wear plate, noting their orientation.
- Clean all mating surfaces thoroughly, ensuring no old gasket material remains.
- Install the new components from the kit in the reverse order of disassembly. Lightly grease the impeller and housing interior.
- Ensure the impeller key is properly seated and rotate the driveshaft clockwise while sliding the housing down to seat the impeller blades correctly.
- Torque all bolts to manufacturer specifications.
- Reinstall the lower unit, reconnect the battery, and test the engine in water, confirming a strong, steady stream from the tell-tale outlet.
Troubleshooting & FAQ
How can I tell if my water pump is failing?
Common signs include a weak or intermittent water stream from the "tell-tale" outlet, engine overheating alerts, or the engine running hotter than usual, especially at low speeds or idle. A visual inspection may also reveal a cracked housing or an impeller with brittle, cracked, or missing vanes.
How often should the water pump impeller be replaced?
As a general maintenance guideline, it is recommended to inspect the water pump impeller annually and replace it every 1-2 years or every 100-200 hours of operation, whichever comes first. Usage in saltwater or silty/sandy conditions may require more frequent replacement.
Is this kit compatible with 2-stroke Mercury models?
No, this water pump repair kit is designed specifically for the 4-stroke engine models listed in the compatibility chart. It will not fit 2-stroke outboards.
What is the difference between this and an OEM kit?
This listing is an aftermarket replacement, not an OEM part. It is built to meet or exceed OEM specifications using comparable, high-quality materials. Our parts are manufactured in an ISO 9001 certified facility and undergo batch-inspections to ensure quality and reliable performance.
How fast do you ship and what is the cost?
We ship worldwide, with typical transit times of 5–15 days for most regions. Standard shipping is free. If expedited options are available for your location, they 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 use conditions. If you encounter an issue, please contact our support team with your order details. Returns of unused items in their original condition are accepted within our standard return window. Refer to our policy page or contact us for specific instructions.
Safety & Important Info
- Verify images and specifications against your original part before purchasing. If anything differs—even if your model is listed as compatible—do not order.
- This is an aftermarket replacement part, not an OEM component. Brand names and part numbers are used for reference purposes only.
- Professional installation is highly recommended to ensure safety and proper engine performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world saltwater and freshwater conditions.
- Fast Global Fulfillment — With partners worldwide, we offer free standard delivery to most regions, typically arriving in 5–15 days.
- Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials, quality control, or performance.
Payment & Security
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