# 21913841 Plug | Genuine Volvo Penta Part

## 🔧 Product Description

Threaded sealing plug used in the IPS-A hydraulic valve and oil circuit. It closes the specified gallery while working with the assigned O-ring and must be installed cleanly at the correct torque.

## 🚤 Compatibility

-   **Engine Family:** D, IPS
-   **HP Range:** 260-435 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   Factory thread and sealing interface
-   Designed for the specified O-ring or seal
-   Pressure-tight closure
-   Allows service access to gallery/housing
-   Exact installation position required

## 🔌 Function

Seals a drilled hydraulic or lubrication gallery while allowing service access when required.

## ⚠️ Common Signs of Failure

-   Oil leakage at the plug
-   Flattened or cut O-ring
-   Corrosion seizure
-   Contamination entering the hydraulic circuit during service

## 🛠️ Service Notes

-   Clean the threads and the seating face before fitting, and make sure the opening itself is clear of old sealant, swarf and corrosion
-   Renew the sealing washer or O-ring where one is fitted rather than reusing a flattened one, and only use thread sealant where the workshop manual for your engine calls for it
-   Tighten to the figure given in the workshop manual for your engine — plugs in aluminium and other soft castings strip easily, and a plug pulled up hard to cure a leak usually distorts the seat and makes it worse
-   Where the plug closes an oil, fuel or coolant passage, run the engine up to temperature afterwards and check the joint under pressure before signing the job off
-   Keep removed plugs paired with the holes they came out of during a strip-down — plugs of very similar appearance often differ in thread, reach or sealing type

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21913841 → Supersedes 21412920

### OEM / Related Numbers

-   21412920 earlier number superseded by this part
-   949656 - associated O-ring
-   21611508 - adapter
-   3886794 - strainer
-   949659 - O-ring
-   21611515 - cover
-   834337 - oil filter
-   21123875 - sensor references
-   874313 - sensor references

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D6-330D-E, D6-370D-E, D6-330D-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370D-F, D6-300D-F, D6-310D-D, D6-310D-C, D6-310D-E, D6-435D-D, D6-435D-E, D6-435D-F, D6-435D-C
-   Volvo Penta D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F
-   Volvo Penta IPS-A, IPS-B, IPS-C, IPS-D, IPS-E, IPS-F
-   Volvo Penta 8.1IPSCE-MF, 8.1IPSCE-P, 8.1IPSCE-Q

## Details

- **Price:** 50.58 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 50.58 AUD | In stock |

## Images

- 21913841 Plug | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21913841-plug-genuine-volvo-penta)
> Updated: 2026-09-19