Water Pump Coupling – Fits Mercury Marine 65-150 HP Outboards (Replaces 8M0036238/8M0214995)
Water Pump Coupling – Fits Mercury Marine 65-150 HP Outboards (Replaces 8M0036238/8M0214995) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Water Pump Coupling – Fits Mercury Marine 65-150 HP Outboards (Repl...
Product Details
This replacement Water Pump Coupling is engineered for Mercury Marine 65-150 HP 4-Stroke outboards manufactured from 2008 to the present. It provides a reliable fit for a wide range of models, including EFI, EFI SeaPro, EFI Pro XS, and Jet drive configurations.
It serves as a direct interchange for Mercury OEM part numbers 8M0036238 and its current supersession, 8M0214995.
- Designed for a direct fit and straightforward installation.
- Connects the water pump to the internal drive shaft.
- Compatible with both 2.07:1 Standard Rotation and 2.38:1 Standard/Counter Rotation gearcase assemblies.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Mercury | 8M0036238 | 8M0214995 |
| Mercury | 8M0214995 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This coupling fits the following Mercury Marine outboard models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | EFI | 75 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI SeaPro | 75 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI | 80 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI Jet | 80 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI | 90 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI SeaPro | 90 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI | 100 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI | 115 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI SeaPro | 115 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
| Mercury | EFI Pro XS | 115 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B225488 & Up |
| Mercury | EFI | 135 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B131942 & Up |
| Mercury | EFI | 150 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 1B905505 & Up |
| Mercury | EFI SeaPro | 150 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B139139 & Up |
| Mercury | EFI Pro XS | 150 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B550139 & Up |
| Mercury | EFI Jet | 65 | 4-Stroke | 2008–Present | 8M0036238/8M0214995 | Serial # 2B095049 & Up |
Technical Specs
- Product Type
- Water Pump Coupling
- Installation
- Direct Fit
- Connection
- Internal Drive Shaft Connection
- Housing Color
- Black
- Dimensions
- 5.0 in x 5.0 in x 7.0 in
- Weight
- 0.021 kg (0.046 lb)
- Other Technical Attributes
- Used with 2.07:1 Standard Rotation and 2.38:1 Standard/Counter Rotation Gearcase Assemblies
What’s in the Box
- 1 x COUPLING Water Pump (Replaces 8M0036238/8M0214995)
Installation Notes
- Disconnect the negative battery cable before starting work.
- Place the outboard gear selector in the neutral position.
- Remove the lower unit (gearcase) from the outboard by unbolting it from the driveshaft housing.
- Locate and remove the water pump housing to access the coupling.
- Carefully remove the old coupling, noting its position and orientation with the driveshaft splines.
- Clean the mounting surfaces and inspect the driveshaft seals for wear or damage.
- Install the new coupling, ensuring it seats correctly onto the driveshaft.
- Reassemble the water pump components, including gaskets and impeller, per the service manual.
- Reinstall the lower unit, making sure the driveshaft, shift shaft, and water tube align correctly.
- Tighten all bolts to the manufacturer’s specified torque.
- Reconnect the battery cable and test the engine using a flush device or in the water to verify cooling system operation.
Troubleshooting & FAQ
How do I confirm this coupling fits my Mercury outboard?
Verify your engine’s serial number against the compatibility table. This part fits specific Mercury 65-150 HP 4-Stroke outboards from 2008–Present. For example, it is compatible with a 75 HP EFI model with serial number 2B095049 and up.
What are the symptoms of a failing water pump coupling?
Common signs include engine overheating alarms, a weak or intermittent water stream from the tell-tale indicator, or rattling/grinding noises from the gearcase area. The original coupling can strip or crack over time, leading to a loss of drive for the water pump.
How often should this part be replaced?
It's best practice to inspect the water pump coupling during routine water pump service (e.g., impeller replacement), which is typically recommended every 1-2 years or 100-200 operating hours. Replace it if you see any signs of wear, cracks, or damage.
Is any special tool required for installation?
Standard mechanic's tools are generally sufficient for removing the lower unit and water pump housing. However, a torque wrench is essential for tightening bolts to the correct manufacturer specifications during reassembly.
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.
Payment & Security
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