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

🚤 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

🔄 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

📦 Condition

• Genuine used part
• In good serviceable condition unless otherwise stated
• Inspect for distortion before reuse