# 37721-93J00 Suzuki Neutral Switch Assy | Genuine Used Part

🔧 Product Description

  

Genuine Suzuki Neutral Safety Switch Assembly - Part Number: 37721-93J00

  

A genuine Suzuki neutral switch assembly used on selected Suzuki DF four-stroke outboards. This switch confirms neutral gear position to the engine control system and starting circuit, helping prevent start-in-gear operation and supporting correct ECU shift-state input.

  

⚙️ Key Features

  

• Genuine Suzuki neutral switch assembly

• Correct OEM part number 37721-93J00

• Neutral safety / gear-position switch function

• Used on Suzuki DF four-stroke outboards

• Must be matched by switch body, lever position and connector style

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 37721-93J00 current Suzuki neutral switch reference

  

OEM / Related Numbers:

  

• 37721-93J00

• 3772193J00

• Neutral switch assembly

• Neutral safety switch

• Gear position / neutral switch

  

Aftermarket / Verified Equivalents:

  

• Replacement neutral safety switches sold against 37721-93J00

  

🚤 Compatibility

  

Commonly used on:

  

• Suzuki DF four-stroke outboard neutral switch assemblies

• Gear-position / engine control unit switch circuits

  

Typically suits:

  

• Suzuki DF40A

• Suzuki DF50A

• Suzuki DF60A

• Suzuki DF70A

• Suzuki DF80A

• Suzuki DF90A

• Suzuki DF100A

• Suzuki DF115A

• Suzuki DF140A

• Suzuki DF200 / DF225 / DF250 family applications

• Suzuki DF250A

• Suzuki DF300A

• Suzuki DF60A to DF300T applications listed across 2004-2010+ fitment references

• Suzuki DF250TXXZ 2014 - beginning VIN 25003Z-410001

• HP Range: 40HP to 300HP

• Engine Type: Suzuki DF four-stroke outboard

• Year Range: 2004-2010+ family applications, plus later model-code controlled applications

• Serial Note: Confirm by model code, VIN range and neutral switch mounting position before installation.

  

🔌 Function

  

The neutral switch tells the ECU and starting circuit when the engine is in neutral, allowing correct start interlock and shift-state operation.

  

Common signs of failure:

  

• Engine will not crank in neutral

• Engine cranks only when shifter is moved slightly

• Neutral light or ECU neutral input incorrect

• Start-in-gear protection fault

• Intermittent no-start

• Broken switch actuator

• Corroded connector or damaged harness

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 10.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Electronic Components | ECU CDI & Electrical Parts

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 10.00 AUD | In stock |

## Images

- 37721-93J00 Suzuki Neutral Switch Assy | Genuine Used Part
- 37721-93J00 Suzuki Neutral Switch Assy | Genuine Used Part
- 37721-93J00 Suzuki Neutral Switch Assy | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/37721-93j00-suzuki-neutral-switch-assy-genuine-used-part)
> Updated: 2026-06-29