# 91038A1 895285Q43 Mercury Speedometer | Genuine Used Part

🔧 Product Description

  

Genuine Mercury / Quicksilver International II 65 MPH Speedometer - Part Numbers: 79-91038A1 / 79-895285Q43

  

A genuine used Mercury / Quicksilver mechanical pitot speedometer with a black face, orange and white graduations, black bezel and a 10-65 MPH range.

  

Original speedometer kit 91038A1 was superseded by International II service gauge 895285Q43. The later kit uses a 270-degree dial sweep, fits an approximately 3-3/8-inch dashboard opening and was supplied with pitot pressure tubing.

  

⚙️ Key Features

  

• Genuine Mercury / Quicksilver mechanical speedometer

• Original part number 79-91038A1

• Current replacement reference 79-895285Q43

• Black face with orange and white graduations

• 10-65 MPH International II dial

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 79-895285Q43 → Supersedes 79-91038A1

• 79-895285Q43 → Also replaces 79-827880A1, 79-825354A1, 79-87174A1 and 79-15117A1

• 79-91038A1 earlier speedometer-kit reference

  

OEM / Related Numbers:

  

• 79-91038A1

• 91038A1

• 79-895285Q43

• 895285Q43

• 79-827880A1

• 827880A1

• 79-825354A1

• 825354A1

• 79-87174A1

• 87174A1

• 79-15117A1

• 15117A1

• Pitot tubing and pickup required

  

Aftermarket / Verified Equivalents:

  

• Faria Beede 65-80 MPH mechanical pitot speedometer

• Sierra 65-80 MPH mechanical pitot speedometer

• Veethree mechanical performance speedometer

• Functional replacement must match the 3-3/8-inch cutout and hose fitting

  

🚤 Compatibility

  

Commonly used on:

  

• Mercury and Mariner outboard-powered boats

• MerCruiser-powered runabouts

• International II black instrument panels

• Mechanical pitot speed systems

  

Typically suits:

  

• Instrument Type: Mechanical speedometer

• Speed Range: 10-65 MPH

• Dial Sweep: Approximately 270 degrees

• Dashboard Opening: Approximately 3-3/8 inches / 85mm

• Signal Type: Pitot water pressure

• Engine Compatibility: Not engine-specific

  

🔌 Function

  

The gauge converts pressure from a pitot speed pickup into an indicated boat-speed reading.

  

Common signs of failure:

  

• Gauge remains at zero

• Reading is lower than GPS speed

• Needle sticks or fluctuates

• Pitot or pressure hose is blocked

• Hose is leaking or disconnected

  

📦 Condition

  

• Genuine used part

• Removed from running vessel where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 50.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Gauges | Marine Gauges & Instrumentation

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 50.00 AUD | In stock |

## Images

- 91038A1 895285Q43 Mercury Speedometer | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/91038a1-895285q43-mercury-speedometer-genuine-used-part)
> Updated: 2026-07-25