Mercury – Analog Water Pressure Fitting Kit | Gauge Connection Hardware | 32-8M0088855

Overview
This fitting kit gives you the parts you need to hook an analog water-pressure gauge to a 2.1L Mercury FourStroke. It taps the engine’s pressure port cleanly and sends a solid pressure signal up to the dash. On the water, it helps the gauge read the way it should instead of bouncing, lagging, or sitting at zero. It’s a small kit, but it’s the key to getting an analog water-pressure gauge working on these motors.

Key Features
    • Complete Fitting Set – Connects an analog gauge to the engine’s pressure port.
    • Clean Pressure Feed – Sends a steady signal to the water-pressure gauge.
    • OEM Threading & Seals – Matches Mercury’s factory ports and adapters.
    • Durable Marine Hardware – Built to handle heat, vibration, and spray.
    • Gauge-Ready Setup – Works with standard water-pressure tubing.

Engine & Boat Compatibility
    • 2.1L F75 FourStroke
    • 2.1L F90 FourStroke
    • 2.1L F115 FourStroke
    • Analog water-pressure gauge setups

Performance & Practical Benefits
With the right fitting, the gauge gets a clean, stable pressure signal, which helps you catch cooling issues early. The kit installs easily and avoids the guesswork of mixing aftermarket fittings. Once it’s routed and tightened down, the gauge usually wakes right up and gives smooth readings.

Why Buy OEM
OEM fittings seal properly, thread correctly, and hold up to engine vibration. They match Mercury’s ports exactly, so you’re not fighting leaks or mismatched threads. Most boaters stick with OEM because cooling-system readings aren’t something worth gambling on.

FAQ
1. How do I know I need this kit?
If you’re adding an analog water-pressure gauge to a 2.1L F75–F115, this is the kit that makes the connection possible.

2. Does the kit include tubing?
No—this is the engine-side fitting kit. Tubing is separate.

3. Do I need sealant?
A small amount of marine-safe thread sealant is helpful, but follow Mercury’s install notes.

4. Is installation difficult?
Not really—access the port, thread the fitting in, and attach your tubing.

5. What happens if the fitting leaks?
You’ll see weak or inconsistent gauge readings, so tighten or re-seal as needed.