# 21346370 Adapter | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta machined adapter used in an engine lubrication-system selector-valve assembly. It provides the oil passages and mounting interface for the valve cone, spring, seals, nipple and related fittings that control or redirect lubricating-oil flow.

## 🚤 Compatibility

-   **Engine Family:** D, TAMD, MD

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta oil-system adapter
-   Machined passages for selector-valve oil flow
-   Interfaces with valve cone, spring and sealing components
-   Provides correct nipple and fitting locations
-   Match oil-system option and engine serial number
-   Engine type: Volvo Penta D12 or D13 inline-six heavy-duty diesel, application dependent

## 🔌 Function

Provides the sealed oil passages and mounting interface that allow the selector valve to route lubricating oil correctly.

## ⚠️ Common Signs of Failure

-   Pressure or flow outside specification
-   Leakage through the valve body or connections
-   Valve sticking open or closed
-   Repeated alarms or unstable system operation
-   Corrosion, contamination or damaged sealing surfaces

## 🛠️ Service Notes

-   Check the adapter against both of the parts it has to join before fitting — adapters are specific to an engine and its variant, and one that is close but not correct will not seat or seal properly
-   Clean and inspect both mating faces or connector ends; grit, old sealant or corrosion on one side is the usual reason an adapted joint leaks or works intermittently
-   Renew any O-ring, gasket or sealing washer belonging to the joint rather than reusing the old one, and lubricate rubber seals lightly so they slide into place instead of rolling or nipping
-   Tighten threaded adapters to the figure given in the workshop manual for that connection; many go into aluminium or onto a soft seat and will distort if pulled up hard
-   Where the adapter is a workshop tool, check it for thread wear and damage before use and never modify it to make something fit

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21346370 → Supersedes 3829975

### OEM / Related Numbers

-   3829975 earlier number superseded by this part
-   1698627 - plug
-   977937 - gasket
-   471085 - valve cone
-   23699753 - spring
-   976932 - gasket
-   23687599 - plug
-   941582 - nipple
-   993235 - X-ring
-   949657 - O-ring
-   21845907 - selector valve
-   962979 - set screw
-   842912 - flange

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-N MH, D13B-N MH (FE), D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C2-A MG, D13C1-A MG
-   Volvo Penta D16C-A MG, D16C-A MH, D16C-B MH, D16C-C MH, D16C1-E MG, D16C1-F MG, D16C2-E MG, D16C2-F MG, D16C-D MH, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
-   Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG
-   Volvo Penta D5A-B TA, D5A-T, D5A-TA
-   Volvo Penta D7A-B TA, D7A-T, D7A-TA
-   Volvo Penta D9A2L MH, D9A2A, D9A2C
-   Volvo Penta D12D-A MG, D12D-E MG
-   Volvo Penta MD2010, MD2010B
-   Volvo Penta TAMD103A
-   Volvo Penta TAMD74A

## Details

- **Price:** 258.13 AUD
- **Vendor:** Volvo Penta
- **Type:** Marine Equipment
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 258.13 AUD | In stock |

## Images

- 21346370 Adapter | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21346370-adapter-genuine-volvo-penta)
> Updated: 2026-09-06