Yamaha

Yamaha 90890-56011-00 Marine Outboard Replacement Key

Name: Yamaha 90890-56011-00 Marine Outboard Replacement Key
Brand: Yamaha
SKU: 90890-56011-00

Ensure Reliable Ignition for Your Yamaha OutboardIntroducing the OEM Yamaha Marine Outboard Replacement Key. This genuine Yamaha ignition key provides a reliable and secure start for your Yamaha Marine Outboard 700 Series engine. Key Number: #747 OEM Part Number: 90890-56011-00 (908905601100)

$19.99*

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*Price sourced from Amazon.com. Last updated:Aug 29, 2026.Price and availability are subject to change — details.

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Overview

Ensure Reliable Ignition for Your Yamaha Outboard

Introducing the OEM Yamaha Marine Outboard Replacement Key. This genuine Yamaha ignition key provides a reliable and secure start for your Yamaha Marine Outboard 700 Series engine.

Key Number: #747
OEM Part Number: 90890-56011-00 (908905601100)

Key Features

Genuine Yamaha Outboard Marine replacement ignition start key #747

Factory original key 90890-56011-00 (908905601100)

Specifications

Product Type

Replacement Key

Application

Marine Outboard Ignition

Brand Compatibility

Yamaha

Key Number

#747

Manufacturer Part Number

90890-56011-00 (908905601100)

Frequently Asked Questions

What is this product specifically designed for?

This product is a genuine Yamaha Outboard Marine replacement ignition start key, identified as key #747.

Is this a universal key for all Yamaha outboards?

No, this is a specific replacement key, designated as #747, and is intended for compatible Yamaha Outboard Marine engines. It is not a universal key.

What is the part number for this key?

The factory original part number for this replacement key is 90890-56011-00 (908905601100).

How can I ensure this key is the correct one for my outboard?

To ensure compatibility, you should confirm that your existing key or outboard ignition system requires the #747 key or the specified Yamaha part number.

Does this product include an ignition cylinder?

No, this product is solely the replacement key itself and does not include an ignition cylinder or any other components.

Strengths & Trade-offs

👍 Pros

This is a genuine Yamaha Outboard Marine replacement key, ensuring exact fit and functionality.
Specifically identified as ignition start key #747, simplifying ordering and replacement.
Carries the factory original part number 90890-56011-00, verifying its authenticity.
Designed to meet original equipment standards for durability and reliable operation.
Provides a direct replacement, eliminating the need for modifications or complex installation.

👎 Cons

This key is specifically for Yamaha Outboard Marine engines, limiting its use to a single brand and application.
Identified as key #747, it may not be universally compatible with all Yamaha Outboard models.
As a single replacement key, it does not offer the security of a new lock cylinder with a unique key.
The product is a functional replacement, lacking any advanced features or aesthetic enhancements.
Requires proper identification of your existing key number to ensure correct compatibility before purchase.