# 990196 Lock Nut | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta lock nut weighing 0.002 kg and listed for three TSK applications.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TSK SX-MACLT
-   Volvo Penta TSK SX-MBAC
-   Volvo Penta TSK SX-MDC

-   **Engine Family:** TSK

## ⚙️ Key Features

-   0.002 kg
-   Three TSK applications

## 🔌 Function

Holds a threaded fastener against vibration, resisting the nut backing off once it is tightened.

## ⚠️ Common Signs of Failure

-   Nut found loose or missing at the next service
-   Locking action gone - the nut spins freely down the thread by hand
-   Thread stripped or crossed
-   Corrosion between nut and stud

## 🛠️ Service Notes

-   Treat a lock nut as single use; once the locking feature has been pulled up and released it will not hold to the same figure again

## 📦 Condition

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

## Details

- **Price:** 5.25 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5.25 AUD | In stock |

## Images

- 990196 Lock Nut | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/990196-lock-nut-genuine-volvo-penta)
> Updated: 2026-09-06