# 866758 Ball | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta ball from the Cooling System group, weighing 0.014 kg and listed for 10 applications across TAMD, D and MD series engines. Plug 866759 is listed on the same three engine families across 11 applications, so check whether the job needs both.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAMD63L-A
-   Volvo Penta TAMD63P-A
-   Volvo Penta D5A-B TA
-   Volvo Penta D5A-TA
-   Volvo Penta D7A-B TA
-   Volvo Penta D7A-TA
-   Volvo Penta D7C-B TA
-   Volvo Penta D7C-TA
-   Volvo Penta MD2010
-   Volvo Penta MD2010B

-   **Engine Family:** TAMD, D, MD

## ⚙️ Key Features

-   0.014 kg
-   Listed for 10 applications
-   For TAMD, D and MD series engines
-   Cooling System group

## 🔌 Function

Seats against a machined face to close a drilling or to act as the sealing element in a check position.

## ⚠️ Common Signs of Failure

-   Weeping or seepage from the drilling the ball closes
-   Ball found pitted, flattened or corroded
-   Seat face bruised or eroded so the ball no longer beds
-   Loss of coolant or pressure with no other leak found

## 🛠️ Service Notes

-   Renew the ball and seat it properly rather than trying to re-bed the old one
-   Check whether plug 866759 is needed at the same position

## 📦 Condition

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

## Details

- **Price:** 29.52 AUD
- **Vendor:** Volvo Penta
- **Type:** Cooling System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 29.52 AUD | In stock |

## Images

- 866758 Ball | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/866758-ball-genuine-volvo-penta)
> Updated: 2026-09-19