# 0174629 OMC Sterndrive Tacho | Genuine Used Part

🔧 Product Description

  

Genuine OMC Cobra / King Cobra Tech Series Tachometer - Part Number: 0174629

  

A genuine OMC three-inch analogue tachometer for selected Cobra and King Cobra sterndrive instrument panels.

  

The rear selector supports multiple engine pulse settings, allowing the gauge to operate with several OMC petrol-engine configurations. The gauge belongs to OMC's Tech Series instrument family.

  

⚙️ Key Features

  

• Genuine OMC Sterndrive tachometer

• Correct part number 0174629

• Tech Series face and bezel

• Multi-position 2-, 3-, 4- and 6-pulse selector

• Used on selected Cobra and King Cobra packages

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 0174629 documented OMC Tech Series tachometer reference

• No confirmed direct superseding number

  

OEM / Related Numbers:

  

• 0174629

• 174629

• Related OMC Cobra instrument harness

• Related gauge mounting bracket

• Related instrument bulb and socket

• Related ignition or alternator signal lead

  

Aftermarket / Verified Equivalents:

  

• No direct aftermarket cosmetic duplicate

• Faria Beede selectable-pulse sterndrive tachometer - functional replacement

• Sierra / Teleflex universal petrol-engine tachometer - functional replacement

• Replacement must support the required pulse setting and RPM range

  

🚤 Compatibility

  

Commonly used on:

  

• OMC Cobra sterndrive instrument panels

• OMC King Cobra sterndrive instrument panels

• Petrol-engine installations using a compatible analogue pulse signal

  

Typically suits:

  

• OMC 3.0L inline-four Cobra packages

• OMC 4.3L V6 Cobra packages

• OMC 5.0L and 5.8L V8 Cobra packages

• OMC 7.4L King Cobra packages where the instrument specification lists 0174629

• OMC engines requiring the gauge's selectable pulse positions

  

• Engine Type: OMC petrol sterndrive

• Gauge Type: Three-inch analogue tachometer

• Year Range: Approximately late 1980s - 1990s

  

🔌 Function

  

The tachometer converts the engine's ignition or alternator pulse frequency into an RPM reading.

  

Common signs of failure:

  

• Gauge remains at zero

• Reading changes when the selector switch is moved or vibrated

• RPM reading does not match actual engine speed

• Needle sticks or oscillates

• Electrical terminals corrode

• Lens fogs or internal lighting fails

  

📦 Condition

  

• Genuine used part

• Removed from running engine 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

- 0174629 OMC Sterndrive Tacho | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/0174629-omc-sterndrive-tacho-genuine-used-part)
> Updated: 2026-07-18