Water Tube Kit – Fits Mercury MerCruiser Alpha Drives (Replaces 32-41672A01, 32-8M0171251)

Product Details

This Water Tube Kit is engineered for Mercury MerCruiser Alpha Drives, providing a direct-fit cooling system component that ensures proper water flow through your sterndrive. Designed as a drop-in replacement, this kit supports reliable operation across a range of Mercury MerCruiser applications equipped with Alpha drive configurations.

This kit directly replaces OEM part numbers 32-41672A01 and 32-8M0171251, offering seamless interchange for Mercury Marine, Quicksilver, and MerCruiser systems.

• Direct replacement for Alpha drive water tube assemblies
• Compatible with Mercury MerCruiser and Quicksilver applications
• Complete tube kit for efficient cooling system restoration

Part Number Matrix

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

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Technical Specs

Part Type

Water Tube Kit

Application

Mercury MerCruiser Alpha Drives

OEM Reference

32-41672A01, 32-8M0171251

Function

Cooling system water delivery

What's in the Box

• 1× Tube Kit – Water

Installation Notes

1. Disconnect power and allow the engine to cool completely before beginning work.
2. Remove the lower drive unit according to your MerCruiser service manual for Alpha drives.
3. Locate and remove the existing water tube, noting the orientation and connection points.
4. Inspect the tube housing and sealing surfaces for corrosion or damage; clean if necessary.
5. Install the new water tube kit, ensuring proper alignment with inlet and outlet ports.
6. Reinstall seals or gaskets as needed, following torque specifications from the service manual.
7. Reattach the lower drive unit, ensuring all fasteners are secure and properly torqued.
8. Reconnect power and perform a cooling system pressure test before launching.

Troubleshooting & FAQ

How do I know if my water tube needs replacement?

Signs include engine overheating, weak tell-tale stream, visible cracks or corrosion on the existing tube, or coolant leaks around the drive assembly. If your cooling system is underperforming despite proper water pump operation, the tube may be damaged or blocked.

Is this compatible with all Alpha drive versions?

This kit is designed for Mercury MerCruiser Alpha drives that use OEM part numbers 32-41672A01 or 32-8M0171251. Always verify your original part number before ordering to ensure correct fitment.

Can I install this without removing the lower unit?

No, proper installation requires lower unit removal to access the water tube assembly. Attempting shortcuts may result in improper sealing and cooling system failure.

What materials are used in this aftermarket kit?

This replacement is manufactured to OEM-level specifications using corrosion-resistant materials suitable for marine environments, ensuring durability and reliable water flow.

How often should the water tube be replaced?

Inspect during routine lower unit service or every 2–3 years. Replace immediately if you notice cracks, brittleness, or cooling system issues. Saltwater environments may accelerate wear.

Will this affect my engine warranty?

Using aftermarket parts typically does not void your warranty unless the part causes damage. Always follow manufacturer installation guidelines and retain proof of purchase.

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 against 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.