# 21237700 Pin | Genuine Volvo Penta Part

## 🔧 Product Description

A precision retaining or locating pin used with a Volvo Penta rotational-speed sensing assembly. It is a related but separately sized component to pin 21237698 and should not be interchanged without confirming parts list for your engine.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta 3.0GLP-J
-   Volvo Penta 3.0GLP-N

## ⚙️ Key Features

-   Correct factory diameter and length
-   Hardened for repeated mechanical loading
-   Exact position controlled by the sensor assembly
-   Direct replacement where part number 21237700 is specified
-   Engine type: Rotational-speed sensing system

## 🔌 Function

Retains or positions the sensor-related rotating component so speed can be measured accurately.

## ⚠️ Common Signs of Failure

-   Lost or unstable speed signal
-   Mechanical play at the sensor
-   Bent or worn pin
-   Sensor contact with a rotating component
-   Corrosion preventing removal

## 🛠️ Service Notes

-   Check the pin and its bore for wear, ovality, scoring and corrosion; a worn pin in a worn bore shows up as lost motion in whatever it links
-   Fit the pin the correct way round and to the correct depth, driving it with a punch that bears on the pin rather than on the surrounding casting
-   Secure it with the same retaining device as originally used — a new split pin, clip or circlip; never reuse a split pin and never straighten and refit a bent pin
-   A light smear of a suitable marine grease on assembly slows corrosion and keeps the pin free for next time
-   Check that the linkage or component the pin carries moves through its full travel freely once everything is assembled

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21237698 - related speed-sensor pin

## 📦 Condition

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

## Details

- **Price:** 39.22 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 39.22 AUD | In stock |

## Images

- 21237700 Pin | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21237700-pin-genuine-volvo-penta)
> Updated: 2026-10-08