# 873611 Relay | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta 24 V, 20 A relay from the Other Electrical Equipment group, weighing 0.034 kg and listed for 38 applications across the TAMD, AD, D and TMD ranges. It replaces 837878 and 870451. The voltage and current rating are what identify it, so check both against the relay you are replacing.

## 🚤 Compatibility

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

Full model list at the end of this description.

## ⚙️ Key Features

-   24 V, 20 A rating
-   0.034 kg
-   Listed for 38 applications
-   Covers TAMD, AD, D and TMD engines
-   Replaces 837878 and 870451

## 🔌 Function

Switches a heavy circuit through its contacts under the control of a light circuit at its coil.

## ⚠️ Common Signs of Failure

-   Circuit dead with no click heard from the relay
-   Relay clicking but the load not coming on
-   Chattering or buzzing from the relay
-   Terminals discoloured, heat-marked or melted
-   Circuit that works when the relay is tapped

## 🛠️ Service Notes

-   Check the coil is being fed and earthed before replacing the relay
-   Match both figures — 24 V and 20 A — against the old unit
-   Heat-marked terminals mean the base or the connector should be checked as well as the relay

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   873611 → Supersedes 837878 → Supersedes 239883

### OEM / Related Numbers

-   870451 earlier number superseded by this part
-   837878 earlier number superseded by this part
-   239883 earlier number superseded by this part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 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 TAMD122A, TAMD122D, TAMD122P-B, TAMD122P-C
-   Volvo Penta TAMD74P-A, TAMD74A, TAMD74C-A, TAMD74L-A
-   Volvo Penta TAMD63L-A, TAMD63P-A
-   Volvo Penta TMD31D, TMD31L-A
-   Volvo Penta TMD41D, TMD41L-A
-   Volvo Penta AD41D
-   Volvo Penta D41D
-   Volvo Penta TAMD102A
-   Volvo Penta TAMD103A
-   Volvo Penta TAMD121D
-   Volvo Penta TAMD73P-A
-   Volvo Penta TMD102A
-   Volvo Penta TMD121C
-   Volvo Penta TMD122A

## Details

- **Price:** 109.8 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 109.80 AUD | In stock |

## Images

- 873611 Relay | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/873611-relay-genuine-volvo-penta)
> Updated: 2026-09-06