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SKU:
NLT1R03481
Ships for free in 2–4 business days.
MerCruiser Alpha Bravo Gimbal Bearing and Engine Alignment Tool Kit
$84.99
In Stock
$84.99
Sale price
$84.99
Regular price
Gimbal-bearing puller, installer, and engine-alignment tool set for compatible MerCruiser, OMC, and Volvo sterndrives.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- MerCruiser Pre-Alpha R/MR, Alpha One, Alpha One Gen II, and Bravo drives
- OMC Cobra sterndrives
- Volvo SX and Yamaha 1989–1992 sterndrives using the matching alignment bar
Product Overview
Drive removal for bellows, coupler, or gimbal-bearing work requires the bearing to be extracted and installed squarely, then the engine aligned before the drive goes back in.
Match tool diameter and drive family. Misalignment can damage the coupler, drive shaft, and new bearing.
Key Features & Performance
- Pulling, installation, and alignment tools for matching sterndrives
- Helps install the gimbal bearing squarely and check coupler alignment
- Reference numbers identify the intended service-tool family
Replaces Part Numbers
- 91-805475A1
- 91-57797A3
- 3851083
- 18-4442
Common Uses
- Removing a noisy or rough gimbal bearing
- Installing a replacement without striking the transom assembly
- Checking engine alignment before reinstalling the drive
Technical Specifications
- Product Type: Marine Tool
- Product Type: Gimbal Bearing and Alignment Tool Set
- System: Sterndrive transom and coupler
- Condition: New aftermarket tool
Installation & Fitment
- Remove the drive by its service procedure and inspect bellows and seals
- Confirm tool diameter and drive family before pulling or driving
- Grease where specified and adjust alignment until the bar enters evenly
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, electrical or fuel-system version, dimensions, installed options, and previous repairs can affect fitment. Compare the original part and application information before purchase.
Frequently Asked Questions
Q: Why check alignment after installing the bearing? A: Misalignment can damage the engine coupler, drive shaft, and new bearing.
Q: Does one bar fit every sterndrive? A: No. Confirm the drive family and dimensions before use.
Q: How do I confirm fitment before ordering? A: Match the original reference number where available, then compare the removed part, dimensions, connections, mounting details, model, serial or production information, and package photos.
Q: Is this an original-equipment part? A: No. This is a new aftermarket part. Brand names and reference numbers are used only to identify compatible applications.
Part Summary
keywords: MerCruiser gimbal bearing tool, Alpha One alignment bar, Bravo bearing installer, OMC Cobra puller, Volvo SX engine alignment, sterndrive service tool
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.