# 978777 V-Belt | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta v-belt weighing 0.318 kg and listed for 28 applications across TAD, TD and TWD engines. It supersedes 966398, and that older number was catalogued as a v-belt set and as a drive belt set — so where the old list called up one set number, the current listing is a single belt. Check how many belts the drive actually runs before ordering, or you may come up short.

## 🚤 Compatibility

-   **Engine Family:** TAD, TD, TWD

Full model list at the end of this description.

## ⚙️ Key Features

-   Replaces the set number 966398, which was catalogued as a v-belt set and a drive belt set
-   Listed as a single belt — check how many the drive needs
-   Fits 28 applications across TAD, TD and TWD engines
-   0.318 kg

## 🔌 Function

Carries drive from the crankshaft pulley to an engine-driven accessory such as the alternator or a circulation pump.

## ⚠️ Common Signs of Failure

-   Squealing from the front of the engine on start-up or under load
-   Charge warning light flickering, or the alternator falling behind
-   Cracks across the back of the belt, or glazed and shiny flanks
-   Black belt dust building up under the pulleys
-   Belt turned over in the groove or thrown off the pulley

## 🛠️ Service Notes

-   The superseded number was a set and this one is a single belt — if your parts list quotes 966398, count the belts on the drive before ordering, as one of these may not be the whole job
-   Where a drive runs more than one belt, renew them all together rather than pairing a new belt with a worn one

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   978777 → Supersedes 966398 → Supersedes 952260

### OEM / Related Numbers

-   966398 earlier number superseded by this part
-   949313 earlier number superseded by this part
-   958548 earlier number superseded by this part
-   952260 earlier number superseded by this part

### Other-Brand OEM Numbers

-   Gates: 9520
-   Dayco: 17520
-   Continental/ContiTech: AVX13X1325
-   Gates: 6483EXL
-   Gates: AVX13X1325HD
-   Dayco: 13A1325C

### Aftermarket / Verified Equivalents

-   Trucktec Automotive: 01.19.187

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta TAD1030P, TAD1030G, TAD1030GE, TAD1030V, TAD1030VE
-   Volvo Penta TWD1210G, TWD1210P, TWD1210V
-   Volvo Penta TWD1211V, TWD1211P, TWD1211G
-   Volvo Penta TAD1031G, TAD1031GE
-   Volvo Penta TD121G-87, TD121GP
-   Volvo Penta TWD1230ME, TWD1230VE
-   Volvo Penta TAD1032GE
-   Volvo Penta TAD1231GE
-   Volvo Penta TAD1232GE
-   Volvo Penta TD100G
-   Volvo Penta TD1010G
-   Volvo Penta TD1030VE
-   Volvo Penta TD1210G
-   Volvo Penta TWD1010G
-   Volvo Penta TWD1030ME
-   Volvo Penta TWD1031VE
-   Volvo Penta TWD1231VE

## Details

- **Price:** 157.39 AUD
- **Vendor:** Volvo Penta
- **Type:** Belts, Pulleys & Tensioners
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 157.39 AUD | In stock |

## Images

- 978777 V-Belt | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/978777-v-belt-genuine-volvo-penta)
> Updated: 2026-09-21