# 90704-RCA-A00 Honda Key | Genuine Used Part

🔧 Product Description

  

Genuine Honda V6 Timing Drive Key - Part Number: 90704-RCA-A00

  

A genuine used Honda 4.5mm x 24mm shaft key used in the timing-belt and crankshaft drive assembly on selected Honda V6 four-stroke outboards.

  

The key locates the applicable crankshaft timing pulley or related drive component so it maintains the correct angular position on the shaft.

  

⚙️ Key Features

  

• Genuine Honda shaft key

• Correct Honda reference 90704-RCA-A00

• Dimensions: 4.5mm x 24mm

• Used in V6 timing-belt assemblies

• Maintains accurate pulley-to-crankshaft alignment

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 90704-RCA-A00 current Honda 4.5mm x 24mm key reference

  

OEM / Related Numbers:

  

• 90704-RCA-A00

• 90704RCAA00

• Special timing key: 90741-ZY3-000

• Timing-belt pulley and crankshaft hardware from the applicable Honda V6 engine

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Honda BF175, BF200, BF225 and BF250 timing-belt systems

• Honda V6 crankshaft-pulley assemblies

• Engines using the RCA-series 4.5mm x 24mm key

  

Typically suits:

  

• Engine models:

• Honda BF175A and later BF175 variants

• Honda BF200A

• Honda BF200AK-series

• Honda BF200D

• Honda BF225A

• Honda BF225A6

• Honda BF225AK-series

• Honda BF225D

• Honda BF250A

• Honda BF250D

• Honda BF250DK1

  

• HP Range: 175HP - 250HP

• Engine Type: Honda V6 four-stroke EFI outboard

• Year Range: Approximately 2002 onward

  

🔌 Function

  

The key provides positive rotational indexing between the shaft and pulley, preventing the pulley from slipping out of its designed timing position.

  

Common signs of failure:

  

• Timing pulley moves on the crankshaft

• Key is sheared or distorted

• Keyway is enlarged or damaged

• Engine timing shifts unexpectedly

• Pulley cannot be installed squarely

• Abnormal knocking near the timing drive

• Timing marks no longer align correctly

  

📦 Condition

  

• Genuine used part

• In good serviceable condition unless otherwise stated

• Inspect for distortion before reuse

## Details

- **Price:** 2.5 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Flywheels | Engine Flywheels & Ring Gears

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2.50 AUD | In stock |

## Images

- 90704-RCA-A00 Honda Key | Genuine Used Part
- 90704-RCA-A00 Honda Key | Genuine Used Part
- 90704-RCA-A00 Honda Key | Genuine Used Part
- 90704-RCA-A00 Honda Key | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/90704-rca-a00-honda-key-genuine-used-part)
> Updated: 2026-07-12