118M0204653 Mercury MerCruiser Nut | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver MR / Alpha Bell Housing Nut - Part Number: 11-8M0204653

A genuine Quicksilver stainless 7/16-20 nylon-insert nut used on MerCruiser MR / Alpha inner transom studs and selected small Mercury propeller hardware applications. This nut replaces multiple earlier Mercury nut references and is commonly used where the transom / bell housing diagram specifies 11-8M0204653.

⚙️ Key Features

• Genuine Quicksilver OEM nut

• Correct Mercury part number 11-8M0204653

• Thread size: 7/16"-20

• Stainless steel with nylon insert

• Used on MR / Alpha MCM inner transom studs and selected Mercury small outboard prop hardware

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 11-8M0204653 current OEM nut reference

• 11-8M0204653 replaces multiple earlier 7/16-20 nut references where specified

OEM / Related Numbers:

• 11-8M0204653

• 8M0204653

• 118M0204653

• 11-21298

• 11-22178

• 11-24648

• 11-29241

• 11-33962

• 11-34933

• 11-82671015

• 11-134391

• 11-46355

• 11-859116

• 11-95702

Aftermarket / Verified Equivalents:

• Fastenal: 51012

• GLM: 21170

• Mallory: 9-72004

• Mallory: 9-72004-10

• Sierra: 18-3721

🚤 Compatibility

Commonly used on:

• MerCruiser MR / Alpha MCM inner transom stud hardware

• Mercury 39 / 60 small outboard prop nut applications where 7/16-20 nut is specified

Typically suits:

• Drive / engine applications:

• MerCruiser MR transom assembly inner transom stud applications where 11-8M0204653 is specified

• MerCruiser Alpha One Gen I transom assembly inner stud nut applications where 11-8M0204653 is specified

• MerCruiser Alpha / MCM bell housing and inner transom stud applications using 7/16-20 stainless nylon-insert nut

• Mercury 39HP propeller nut applications, 1968 and newer, 8-spline prop shaft where specified

• Mercury 60HP propeller nut applications, 1968 and newer, 8-spline prop shaft where specified

• Drive Type: MerCruiser MR / Alpha One Gen I where specified

• Engine Type: Selected Mercury small outboard prop hardware applications where specified

• System Type: Bell housing / inner transom stud nut or small outboard prop nut

• Thread Size: 7/16"-20

🔌 Function

The nut secures the specified transom stud or propeller hardware location, maintaining correct clamping force and hardware retention.

Common signs replacement is needed:

• Nylon insert worn or no longer locking

• Corroded or seized nut

• Damaged threads

• Transom service or bell housing removal required

• Propeller hardware replacement required on matching small outboard applications

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging