# 21422478 Solenoid Valve | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine 28-volt electrically operated valve used in selected Volvo Penta D4 marine diesel engine installations. It controls the assigned fluid or air circuit in response to the engine control system and is documented as an alternative to earlier 14-volt valve 3884115 in the appropriate voltage configuration.

## 🚤 Compatibility

-   **Engine Family:** D
-   **HP Range:** 145-480 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   28V solenoid-valve assembly
-   Confirmed D4-145I-G application
-   Electrically controlled fluid or air flow
-   Factory hose ports and mounting geometry
-   14V valve 3884115 is a different voltage version

## 🔌 Function

The solenoid converts an electrical command into valve movement to open, close or redirect the assigned engine fluid or air circuit.

## ⚠️ Common Signs of Failure

-   Valve does not click or actuate
-   Open- or short-circuit coil fault
-   Circuit remains open or closed
-   Intermittent operation when hot
-   Fluid or air leakage
-   Engine fault or derate related to the controlled circuit

## 🛠️ Service Notes

-   Note the flow direction and the port connections before removal, and fit the new valve the same way round
-   Clean the pipework and mating faces and renew the seals or gaskets; grit on the seat is a common cause of a valve that will not close fully
-   Make the electrical connection off dry and properly latched, with the connector protected against damp and the loom supported clear of hot and moving parts
-   Check the supply voltage is correct for the valve before energising it, and do not leave a valve energised for long periods with no flow through it
-   Function test the valve and leak check the joints before closing the installation up

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   3884115 - 14V alternative; not interchangeable without system confirmation
-   991171 - Hose nipples
-   991128 - Hose nipples
-   961666 - Hose clamp
-   23523860 - Related hoses
-   23523863 - Related hoses
-   23509313 - Brackets by application
-   23528019 - Brackets by application
-   23284156 - Locking fluid
-   60113424 - Hexagon screw
-   994847 - Washer
-   990940 - Flange nut

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G
-   Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G

## Details

- **Price:** 2889.73 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2889.73 AUD | In stock |

## Images

- 21422478 Solenoid Valve | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21422478-solenoid-valve-genuine-volvo-penta)
> Updated: 2026-10-12