65533A1 Mercury MerCruiser Seal | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Transom / Gimbal Housing Seal - Part Number: 65533A1

Genuine Quicksilver/MerCruiser transom seal for compatible MerCruiser MC-I, R, MR and Alpha One Gen I stern drive transom assemblies. This OEM seal is used at the gimbal housing / transom area to help maintain correct sealing and reduce the risk of water intrusion.

⚙️ Key Features

• Genuine Quicksilver/MerCruiser OEM transom seal

• Designed for compatible MerCruiser MC-I, R, MR and Alpha One Gen I transom assemblies

• Helps seal the gimbal housing / transom area

• Direct replacement where 65533A1 is specified

• Important service item during transom assembly or gimbal housing work

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 65533A1

• 65533

OEM / Related Numbers:

• 65533A1

• 65533

• 25-65533 related seal reference where listed by application

Aftermarket / Verified Equivalents:

• Sierra: 18-2619

• GLM: 86950

• REC: REC65533A1

🚤 Compatibility

Commonly used on:

• MerCruiser MC-I transom assemblies

• MerCruiser R and MR transom assemblies

• MerCruiser Alpha One Gen I gimbal housing / transom sealing applications

Typically suits:

• Engine models:

• MerCruiser MC-I stern drive transom assemblies

• MerCruiser R stern drive transom assemblies

• MerCruiser MR stern drive transom assemblies

• MerCruiser Alpha One Gen I stern drive transom assemblies

• MerCruiser Alpha One Gen I / R / MR applications, approximately 1972-1990

• MerCruiser stern drive packages using the matching gimbal housing transom seal 65533A1

• HP Range: Not applicable - transom / gimbal housing sealing component

• Engine Type: MerCruiser stern drive transom assembly / gimbal housing seal system

• Year Range: Approximately 1972-1990 for compatible MC-I, R, MR and Alpha One Gen I style applications, depending on drive and transom assembly

🔌 Function

The transom seal helps seal the gimbal housing against the transom assembly. A correct seal helps prevent water intrusion into the boat and supports proper stern drive installation integrity.

Common signs of failure:

• Water leaking into the bilge around the transom assembly

• Seal cracked, flattened or deteriorated

• Corrosion around gimbal housing mounting area

• Water intrusion after drive or transom service

• Seal damage during gimbal housing removal

• Poor sealing after reinstallation

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging