891645A01 Mercury MerCruiser Throttle Button | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Throttle Only Button - Part Number: 891645A01

A genuine Quicksilver throttle-only button used in selected Mercury, Mariner, MerCruiser and Quicksilver remote control assemblies. This button allows throttle advance without engaging forward or reverse gear on compatible control boxes.

⚙️ Key Features

• Genuine Quicksilver OEM throttle control button

• Correct Mercury part number 891645A01

• Replaces earlier 891645 throttle button reference

• Used on Mercury / Quicksilver panel-mount remote controls

• Commonly fitted to 4000 Gen II control assemblies

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 891645A01 → Supersedes 891645

• 891645 earlier OEM throttle-only button reference

OEM / Related Numbers:

• 891645A01

• 891645

• Mercury 4000 Gen II throttle button

• Quicksilver throttle-only button

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Mercury / Mariner / MerCruiser / Quicksilver remote control boxes with throttle-only warm-up function

Typically suits:

• Control models:

• Mercury 4000 Gen II panel-mount remote control assemblies

• Quicksilver 4000 Gen II panel-mount remote control assemblies

• Mercury panel-mount control boxes using throttle-only button 891645A01

• MerCruiser panel-mount control boxes using throttle-only button 891645A01

• Mercury / Mariner outboard remote controls where 891645A01 is specified

• Quicksilver remote control assemblies replacing earlier throttle button 891645

• System Type: Remote control / throttle-only button

• Application Type: Control-box-specific part, not an engine-serial-specific component

🔌 Function

The throttle button allows the operator to advance throttle in neutral for warm-up, starting or service procedures without engaging gear.

Common signs of failure:

• Throttle-only function will not engage

• Button cracked, stuck or missing

• Control box does not release throttle-only mode correctly

• Button does not spring back

• Loose or incomplete control-box button assembly

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging