Water Pump Repair Kit – Fits Mercury Outboards 200-400 HP (Replaces 8M0065072, 817275A1)
Water Pump Repair Kit – Fits Mercury Outboards 200-400 HP (Replaces 8M0065072, 817275A1) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Repair Kit – Fits Mercury Outboards 200-400 HP (Replaces...
Water Pump Repair Kit – Fits Mercury Outboards 200-400 HP (Replaces 8M0065072, 817275A1) is backordered and will ship as soon as it is back in stock.
Product Details
This upper housing Water Pump Repair Kit – Fits Mercury Outboards 200-400 HP is designed for 2.6L and V8 4-stroke Verado engines. It provides all the essential components needed to restore your cooling system's performance and prevent overheating.
It serves as a direct replacement for Mercury/Quicksilver part numbers 8M0065072 and 817275A1.
- Engineered for direct OEM replacement, ensuring a precise fit.
- Constructed with durable alloy steel housing for corrosion resistance and longevity.
- Includes a new impeller, gaskets, seals, and housing for a complete overhaul.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury / Quicksilver | 8M0065072 |
| Mercury | 817275A1 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Mercury | Verado 200 | 200 | 4-Stroke | 8M0065072 | 6-cylinder engines |
| Mercury | Verado 225 | 225 | 4-Stroke | 8M0065072 | 6-cylinder engines |
| Mercury | Verado 250 | 250 | 4-Stroke | 8M0065072 | 6-cylinder engines |
| Mercury | Verado 275 | 275 | 4-Stroke | 8M0065072 | 6-cylinder engines |
| Mercury | Verado 300 | 300 | 4-Stroke | 8M0065072 | 6-cylinder engines |
| Mercury | Verado 350R | 350 | 4-Stroke | 8M0065072 | 2.6L Pro outboard |
| Mercury | Verado 400 | 400 | 4-Stroke | 8M0065072 | 2.6L Pro outboard |
| Mercury | Verado 400R | 400 | 4-Stroke | 8M0065072 | 2.6L Pro outboard |
Technical Specs
- Product Type
- Water Pump Repair Kit (Upper Housing)
- Installation
- Direct OEM replacement
- Connection
- Direct fit to engine water pump assembly
- Housing Material
- Alloy Steel
- Housing Color
- Silver/Metal
- Dimensions
- 117.6 × 98.6 × 98.6 mm (4.63 × 3.88 × 3.88 in)
- Weight
- 0.63 kg (1.38 lbs)
- Fitting Type
- Direct OEM replacement
- Thread Size
- M6 x 20 (4 mounting screws)
- Other Technical Attributes
- Upper housing water pump repair kit
What’s in the Box
- 1 x Water Pump Impeller (47-43026Q02)
- 1 x Key (28-8M0032833)
- 1 x Seal Face (26-8M2014338)
- 1 x Housing Kit (817275A1)
- 1 x Gasket (27-8172771)
- 1 x Faceplate (8172761)
- 1 x Gasket (27-8M0050720)
- 4 x Screw M6 x 20 (10-1993720)
Installation Notes
- Disconnect the battery and ensure the engine is off and cool.
- Remove the lower unit (gearcase) from the outboard motor.
- Unbolt and remove the old water pump housing assembly. Note the orientation of all parts.
- Clean the mounting surfaces and remove any old gasket material.
- Install the new key, impeller, faceplate, and gaskets as provided in the kit.
- Lubricate the inside of the new housing and the impeller with a marine-safe lubricant.
- Slide the new housing down over the impeller while turning the driveshaft clockwise to seat the vanes.
- Fasten the new housing with the provided screws, tightening to the manufacturer's torque specifications.
- Reinstall the lower unit, ensuring the water tube and shift shaft are correctly aligned.
- Reconnect the battery and test the engine using a water supply (flushing muffs) to verify proper water flow.
Troubleshooting & FAQ
How do I know if my water pump is failing?
Common signs of a worn or failing water pump include a weak or inconsistent "telltale" stream, engine overheating alarms, and visible damage to the old impeller blades (cracks, missing pieces) during inspection.
What is the recommended replacement interval for this kit?
For optimal reliability, it's recommended to inspect your water pump impeller annually and replace the entire kit every 2-3 years or 200-300 operating hours, whichever comes first. This interval may be shorter if operating frequently in saltwater or sandy/silty conditions.
Will this kit fit a V6 Verado engine?
This specific kit is designed for the 6-cylinder and V8 Mercury Verado engines listed in the compatibility table. Please verify your exact model and part number, as V6 models may use a different water pump assembly.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, 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 QC.
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