Water Pump Kit – Fits Mercruiser 110-898 Series (Replaces 46-44292A5, 46-96148A8)
Water Pump Kit – Fits Mercruiser 110-898 Series (Replaces 46-44292A5, 46-96148A8) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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Water Pump Kit – Fits Mercruiser 110-898 Series (Replaces 46-44292A...
Water Pump Kit – Fits Mercruiser 110-898 Series (Replaces 46-44292A5, 46-96148A8) is backordered and will ship as soon as it is back in stock.
Product Details
This complete Water Pump Kit - Fits Mercruiser 110-898 Series Marine Engines is designed for Mercruiser stern drives, including models 110, 120, 140, 150, 165, 175, 200, 225, 228, 260, 470, 485, 898, and various V series engines manufactured between 1970 and 1991. It provides a reliable solution for maintaining your engine's cooling system for optimal performance.
It serves as a direct interchange for multiple part numbers, including Mercury 46-96148A8, 46-44292A5, Sierra 18-3317, GLM 12110, and Mallory 9-48305, ensuring broad compatibility.
- Engineered for direct OEM replacement fit and function.
- Includes the essential preload pin on the vertical drive shaft for MC-1/R models.
- Restores cooling system performance to prevent engine overheating.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 46-96148A8 |
| Mercury | 46-44292A5 |
| Mercury | 46-96148A5 |
| Mercury | 46-57234A3 |
| Mercury | 46-58618A4 |
| Sierra | 18-3317 |
| GLM | 12110 |
| Mallory | 9-48305 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is designed for Mercruiser Stern Drive units, covering a wide range of models primarily from 1970–1991. Note the specific serial number range 2791957-6225576 for some applications.
| Brand | Model | Rated HP | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Mercruiser | 110 | 110 | 1970–1982 | 46-44292A4 | |
| Mercruiser | 120/140 | 120/140 | 1970–1982 | 46-58618A4 | |
| Mercruiser | 165 | 165 | 1970–1982 | 46-57234A3 | |
| Mercruiser | 175 | 175 | V series | ||
| Mercruiser | 200 | 200 | V series | ||
| Mercruiser | 225 | 225 | V series | ||
| Mercruiser | 228 | 228 | 1977–1982 | ||
| Mercruiser | 233 | 233 | 1975–1977 | ||
| Mercruiser | 250 | 250 | 1977 | ||
| Mercruiser | 260 | 260 | 1978–1982 | ||
| Mercruiser | 470 | 470 | 1976–1982 | 46-42579A4 | |
| Mercruiser | 485 | 485 | 1980–1982 | ||
| Mercruiser | 888 | 888 | 1971–1977 | ||
| Mercruiser | 898 | 898 | 1977–1982 | ||
| Mercruiser | R/MR/Alpha One (Sterndrive) | 1983–1991 | |||
| Mercruiser | R/MR/Alpha One (Transom Assembly) | 1983–1991 |
Technical Specs
- Product Type
- Water Pump Repair Kit
- Installation
- Direct OEM replacement
- Package Dimensions
- 9.9 mm × 9.9 mm × 9.9 mm (0.39 × 0.39 × 0.39 inches)
- Weight
- 50 g (1.76 ounces)
- Other Attributes
- Includes preload pin on vertical drive shaft for MC-1/R models
What’s in the Box
- 1 × Complete Water Pump Repair Kit
Installation Notes
- Disconnect the battery and ensure the engine is off and cool.
- Position a drain pan and remove the gearcase drain/fill plugs to drain the lubricant.
- Remove the lower unit (outdrive) from the engine by unfastening the mounting bolts.
- Unbolt and remove the old water pump housing assembly from the lower unit.
- Carefully note the order and orientation of all parts as you disassemble the old pump.
- Clean the mounting surfaces and inspect the housing for wear, replacing if necessary.
- Install the new impeller, gaskets, plates, and seals from the kit, lightly greasing where appropriate.
- Reassemble and bolt the new water pump housing to the specified torque.
- Reinstall the lower unit, refilling it with fresh gear lubricant.
- Reconnect the battery, start the engine using a water supply (flushing muffs), and verify proper water flow from the tell-tale outlet.
Troubleshooting & FAQ
How do I confirm this kit fits my specific engine?
The best way is to match your old part's number to one listed in our 'Part Number Matrix'. Additionally, check your engine model and year in the 'Engine & Model Compatibility' table. For some applications, this kit fits serial numbers between 2791957–6225576.
What are the signs of a failing water pump?
Common symptoms include the engine running hotter than normal, a complete overheating event, or a weak or absent stream of water from the 'tell-tale' outlet port. Visual inspection may also reveal cracked or missing vanes on the old impeller.
How often should a water pump impeller be replaced?
As a preventative maintenance measure, it is recommended to inspect the impeller annually and replace it every 1-2 years or 100-200 hours of use, particularly for boats operated in saltwater or silt-heavy water.
Is the pump housing included in this kit?
This is a complete repair kit intended to replace all wearable components. While it typically includes the impeller, gaskets, wear plates, and seals, the inclusion of the full upper and lower pump housing can vary. Please reference product images to confirm all included contents.
What is the 'preload pin' mentioned in the specs?
The preload pin is a small component used on Mercruiser MC-1 and R models. It applies the correct amount of pressure on the vertical drive shaft during assembly to ensure proper alignment and pump operation.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and is manufactured in an ISO 9002 facility, with batch-inspections for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout where available.
Warranty & returns
This product is covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement part, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or quality control.
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