# 21951418 Shaft Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta shaft, bearing and seal kit for selected D1-30, D2-40, MD2030 and MD2040 seawater pumps.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D2-40
-   Volvo Penta D2-40B
-   Volvo Penta D2-40F
-   Volvo Penta D1-30
-   Volvo Penta D1-30B
-   Volvo Penta D1-30F
-   Volvo Penta MD2030
-   Volvo Penta MD2030B
-   Volvo Penta MD2030-C
-   Volvo Penta MD2030-D
-   Volvo Penta MD2040
-   Volvo Penta MD2040B
-   Volvo Penta MD2040-C
-   Volvo Penta MD2040-D

-   **Engine Family:** D, MD
-   **HP Range:** 30-40 HP
-   **Year Range:** Approximately 1990s onward

## ⚙️ Key Features

-   Shaft, bearing and seal kit for selected D1-30, D2-40, MD2030 and MD2040 seawater pumps
-   0.168 kg
-   Supersedes 876700
-   14 applications across D and MD series engines

## 📋 Kit Contents

-   1 x pump shaft - supplied under Volvo Penta kit 21951418
-   Bearing / bush components - supplied within kit 21951418
-   Shaft seals and retaining clips - supplied within complete kit 21951418
-   Individual loose numbers are not published as one fixed breakdown

## 🔌 Function

Replaces the rotating shaft, bearings and shaft seal of the seawater pump so the impeller runs true and the drive end stays dry.

## ⚠️ Common Signs of Failure

-   Growl or rumble from the pump rising with engine speed
-   Play at the shaft or impeller when rocked by hand
-   Salt crust or seawater weep at the shaft
-   Bearings found rough or corroded, shaft seal track worn into a step
-   Drive pin sheared so the impeller no longer turns with the shaft

## 🛠️ Service Notes

-   Shaft kit 21951416, at 0.163 kg, covers pump 3593654 and the related compact D1 / MD20-series pumps - the two are within 5 grams, so order by engine and pump number
-   Fit a new impeller and shaft seal at the same time and check the pump bore

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21951418 → Supersedes 876700

### OEM / Related Numbers

-   3593655 related seawater pump
-   3580222 earlier short-pump reference

### Aftermarket / Verified Equivalents

-   Poseidon Marine: D1-30 shaft-kit equivalent
-   Poseidon Marine: D2-40 shaft-kit equivalent
-   Poseidon Marine: MD2030 shaft-kit equivalent
-   Poseidon Marine: MD2040 shaft-kit equivalent

## 📦 Condition

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

## Details

- **Price:** 201.48 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 201.48 AUD | In stock |

## Images

- 21951418 Shaft Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21951418-shaft-kit-genuine-volvo-penta)
> Updated: 2026-10-10