# 873066 Thermo Monitor | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta thermo monitor from the Instruments group, weighing 0.066 kg and listed for 33 applications across the AD, D, TMD, TAMD, KAD and KAMD series. It is listed as 1-way, Alt, 12V 97°C - the 97°C operating point and the 12 V rating are the details that separate it, so check both before ordering.

## 🚤 Compatibility

-   **Engine Family:** AD, D, TMD, TAMD, KAD, KAMD

Full model list at the end of this description.

## ⚙️ Key Features

-   Listed as 1-way, Alt, 12V 97°C
-   Operates at 97°C
-   0.066 kg
-   33 applications across AD, D, TMD, TAMD, KAD and KAMD

## 🔌 Function

Closes the alarm circuit when the temperature reaches its set point, warning the operator that the engine is running hot.

## ⚠️ Common Signs of Failure

-   Overheat alarm not sounding when the engine is genuinely hot
-   Alarm sounding with the engine at normal temperature
-   Switch body corroded or weeping around the thread
-   Terminal loose, corroded or broken off
-   Intermittent alarm that comes and goes with vibration

## 🛠️ Service Notes

-   Check the alarm circuit and the buzzer before condemning the switch
-   Renew the sealing washer and do not overtighten it into the housing
-   Test the overheat alarm after fitting - an untested alarm is no protection

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta TAMD31L-A, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31D
-   Volvo Penta TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41P-A, TAMD41P
-   Volvo Penta AD31D-A, AD31L-A, AD31P-A, AD31XD
-   Volvo Penta AD41D, AD41L-A, AD41P-A
-   Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
-   Volvo Penta D41D, D41L-A
-   Volvo Penta KAD42B, KAD42P-A
-   Volvo Penta KAMD42B, KAMD42P-A
-   Volvo Penta TMD31D, TMD31L-A
-   Volvo Penta TMD41D, TMD41L-A
-   Volvo Penta KAD32P
-   Volvo Penta KAD43P-A

## Details

- **Price:** 184.4 AUD
- **Vendor:** Volvo Penta
- **Type:** Sensors & Senders
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 184.40 AUD | In stock |

## Images

- 873066 Thermo Monitor | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/873066-thermo-monitor-genuine-volvo-penta)
> Updated: 2026-10-11