# 21234528 Speedometer | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta 85 mm speedometer instrument with a white dial, reading 0-40 knots with mph and km/h scales on the same face. It is the white-dial version of the 0-40 knot instrument, the black-dial one being 21234525. The speed signal reaches it by GPS or NMEA, or from the multi-sensor, and the unit displayed is chosen in the EVC system. Volvo Penta's instruments carry an anti-fogging membrane and full backlighting, and connect by serial link so adding one is straightforward.

## 🚤 Compatibility

-   **Engine Family:** V, D
-   **HP Range:** 175-480 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   85 mm speedometer instrument
-   White dial
-   0-40 knots, with mph and km/h scales
-   Unit displayed is selected in the EVC system
-   Speed signal by GPS or NMEA, or from the multi-sensor
-   Anti-fogging membrane and full backlighting
-   85mm (Volvo assembly listing)
-   Gauge diameter: Ø 85 mm
-   Gauge family: Speedometers
-   Gauge range: EVC gauge range
-   85 mm instrument diameter
-   Signal via GPS/NMEA or from the multi-sensor
-   Plug-and-play serial connection - adding instruments is easy
-   Diameter: 85 mm
-   Dial colour: White
-   Scale: 0-40 knots, mph, km/h

## 🔌 Function

Displays calculated vessel speed from the connected electronic speed source.

## ⚠️ Common Signs of Failure

-   Gauge remains at zero
-   Erratic speed reading
-   Fogging or moisture inside the lens
-   Failed backlighting
-   Communication or sensor fault

## 🛠️ Service Notes

-   The black-dial 0-40 knot instrument is 21234525, and the 0-60 knot pair is 21234529 in black and 21234530 in white - colour and scale are the only things separating the four
-   Where the speed signal comes from the multi-sensor, the transom-mount sensor is 3587055 and the through-hull sensor 3587054
-   The front ring and mounting items are not supplied with the instrument and are ordered separately
-   Four speedometers are listed and dial colour and scale are all that separate them: 21234525 is black, 0-40 knots; 21234529 is black, 0-60 knots; 21234530 is white, 0-60 knots
-   Where the signal comes from the multi-sensor, the transom mount sensor is 3587055 and the through hull sensor is 3587054

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21234528 → Supersedes 3847854

### OEM / Related Numbers

-   874929 earlier number superseded by this part
-   874930 earlier number superseded by this part
-   3847854 earlier number superseded by this part

## 📦 Condition

-   Genuine Volvo Penta part
-   Brand new
-   Supplied in original or equivalent packaging

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G
-   Volvo Penta V8-350-CE-R, V8-380-CE-R, V8-300-CE-R, V8-430-CE-R, V8-300-CE-P, V8-350-CE-P, V8-380-CE-P, V8-430-CE-P, V8-300-CE-S, V8-350-CE-S, V8-400-CE-R
-   Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G
-   Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A4-A MP, D8A1-A MP, D8A3-A MP
-   Volvo Penta V6-200-CE-P, V6-250-CE-P, V6-280-CE-P, V6-250-CE-O

## Details

- **Price:** 638.95 AUD
- **Vendor:** Volvo Penta
- **Type:** Instruments & Gauges
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 638.95 AUD | In stock |

## Images

- 21234528 Speedometer | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21234528-speedometer-genuine-volvo-penta)
> Updated: 2026-09-19