91-818162 Aftermarket Mercruiser Bellows Retainer Ring Installation Tool | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket U-joint bellows retainer-ring installer replacing MerCruiser special tool 91-818162. The shaped installer presses the aluminium retaining ring squarely into the bell-housing bellows groove without distorting the ring or cutting the new bellows.

It is normally driven with a compatible MerCruiser alignment shaft, including 91-805475A1-type tools. The driver shaft is not included unless specifically stated.

⚙️ Key Features

• Purpose-shaped face supports the retainer ring evenly during installation

• Reduces the risk of cocking, bending or damaging the aluminium ring

• Suitable for later Alpha and Bravo U-joint bellows arrangements

• Reusable specialist transom-service tool

📋 Kit Contents

• 1 × Bellows retainer-ring installer head - replaces 91-818162

• Alignment/driver shaft not included

🔄 Supersession & Cross Reference

• Mercury references: 91-818162, 818162 and related 43577

• Sierra equivalent: 18-9870

• Mallory equivalent: 9-79821

• Recmar equivalent: REC91-818162

• MBS functional alternatives: BRSIT-D23 / D23 ALUM

🚤 Compatibility

• MerCruiser Alpha One Gen II U-joint bellows

• MerCruiser Bravo One, Bravo Two and Bravo Three

• Selected Bravo X, XR, XZ and Blackhawk transom assemblies

• Use only where the bellows is retained by the aluminium press-fit ring

• Requires a compatible driver/alignment bar such as 91-805475A1

🔌 Function

Seats the bellows retainer ring to its correct depth and alignment after the U-joint bellows has been installed and bonded to the bell housing. A correctly seated ring secures the bellows and helps prevent water entry into the gimbal-bearing and U-joint cavity.

📦 Condition

• Brand-new aftermarket installer head

• Tool material may be machined metal or durable engineering polymer depending on production batch

• Inspect the ring and bellows seating all the way around after installation