# 963119 Lock Nut | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta lock nut weighing 0.02 kg and listed for 165 applications including MD, TMD, AD, AQAD, D and AQ series units. Lock nuts 963104 and 963105 are the M5 and M6 sizes, so identify the thread of the nut being replaced and order by that rather than by weight.

## 🚤 Compatibility

-   **Engine Family:** MD, TMD, AD, AQAD, D, AQ, TAMD, MS, BB, DP, SP, HS, AQD, KAD, KAMD
-   **HP Range:** 40-75 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   0.02 kg
-   165 listed applications
-   Fits MD, TMD, AD, AQAD, D and AQ series units
-   Order by the measured thread, not by weight

## 🔌 Function

Clamps a joint from the opposite face and resists loosening under vibration through its locking feature.

## ⚠️ Common Signs of Failure

-   Nut running down the thread without resistance
-   Joint found loose in service
-   Nylon insert glazed, melted or lost
-   Stripped or picked-up thread
-   Rounded flats after a spanner has slipped

## 🛠️ Service Notes

-   Identify the thread of the nut being replaced before ordering
-   Lock nuts are single-use — renew whenever the joint is disturbed

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   963108 referenced in the part notes

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta 2003, 2003R, 2003R SOLAS, 120S-B, 740B, 501B, 570A, 572A, 740A, 430A, 430B, 431A, 431B, 432A, 434A, 2003TB, 2003TB SOLAS, 230A, 230B, 250A, 250B, 251A, 120SC, 2001AG, 2001B, 2001BG, 2001D, 2003D, 2003T, 2003TR, 2002AG, 2002B, 2002BG, 2002D, 2003B, 2003B SOLAS, 2003 SOLAS, 2001, 570, 500B, 2002, 430, 2001R
-   Volvo Penta D2-40, D2-40B, D2-40F, D2-55, D2-55B, D2-55C, D2-55D, D2-55E, D2-55F, D2-50F, D2-75, D2-75B, D2-75C, D2-75F, D2-60F
-   Volvo Penta AD41P-B, AD41B, AD41D, AD41, AD41A, AD41BJ
-   Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-A, DP-A2
-   Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31XD
-   Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
-   Volvo Penta TAMD41B, TAMD41D, TAMD41M-A, TAMD41P, TAMD41A
-   Volvo Penta MD2010, MD2010B, MD2010-C, MD2010-D
-   Volvo Penta MD2020, MD2020B, MD2020-C, MD2020-D
-   Volvo Penta MD2030, MD2030B, MD2030-C, MD2030-D
-   Volvo Penta MD2040, MD2040B, MD2040-C, MD2040-D
-   Volvo Penta MD22, MD22A, MD22L, MD22P
-   Volvo Penta TAMD31M, TAMD31A, TAMD31B, TAMD31D
-   Volvo Penta AQ151A, AQ151B, AQ151C
-   Volvo Penta D41, D41B, D41D
-   Volvo Penta D5A-B TA, D5A-T, D5A-TA
-   Volvo Penta MS2B-A, MS2B, MS2V
-   Volvo Penta SP-C, SP-A2, SP-C1
-   Volvo Penta TMD22A, TMD22B, TMD22P-C
-   Volvo Penta TMD31A, TMD31B, TMD31D
-   Volvo Penta TMD40A, TMD40B, TMD40C
-   Volvo Penta TMD41A, TMD41B, TMD41D
-   Volvo Penta AQ131B, AQ131C
-   Volvo Penta AQ171A, AQ171C
-   Volvo Penta AQAD40B, AQAD40A
-   Volvo Penta KAD42B, KAD42P-A
-   Volvo Penta KAMD42B, KAMD42P-A
-   Volvo Penta TAMD40A, TAMD40B
-   Volvo Penta AD30A
-   Volvo Penta AD40B
-   Volvo Penta AQ145B
-   Volvo Penta AQAD30A
-   Volvo Penta AQD40A
-   Volvo Penta BB740A
-   Volvo Penta D2002AG
-   Volvo Penta D2003AG
-   Volvo Penta HS1A
-   Volvo Penta MD30A
-   Volvo Penta MD31A
-   Volvo Penta MD40A
-   Volvo Penta MS4B
-   Volvo Penta TAMD22P-B
-   Volvo Penta TAMD30A
-   Volvo Penta TAMD42B
-   Volvo Penta TMD30A

## Details

- **Price:** 5.85 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5.85 AUD | In stock |

## Images

- 963119 Lock Nut | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/963119-lock-nut-genuine-volvo-penta)
> Updated: 2026-09-21