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Gimbal Bearing Installer Alignment Tool for Mercruiser Grease Seal Bellow Retainer Ring Installer Tool Kit Hinge Pin for Alpha1 Gen 2, Bravo OMC Cobra

Brand: MBS Mfg

Product Overview

  • MADE IN USA: All tools are professionally made in the United States on the state of the art CNC equipment with 100% quality inspection. THIS IS A SET OF FIVE (5) TOOLS: Engine Alignment Tool; Drive Shaft Bellow Sleeve Installation Tool (PVC Plastic); Gimbal Bearing Installation Tool; Grease Seal Installation Tool; Hinge Pin Tool (OEM 91-78310).
  • ENGINE ALIGNMENT BAR TOOL: Compatible with MerCruiser Sterndrives including Pre Alpha, Alpha 1 Gen 2, MR, R, all MerCruiser Bravo. Compatible with Volvo SX and OMC Cobra Drives. This Tool will correctly align all OMC Cobra and Mercruiser Outdrives with the exception of the Mercruiser TR and TRS Outdrive Models. This Tool is similar to MerCruiser P/N 91-805475A1 which used to be P/N 91-57797A3. Compatible with Volvo SX P/N 3851083 and OMC Cobra P/N 18-4442. The length of the bar is approximately 23-5/8 inch. Tool is made from high quality 1045 steel, and includes an eyebolt which gives you the option of hanging the tool. Alignment Tool Comes Without Black Oxide Coating.
  • GIMBAL BEARING INSTALLER: This tool compatible with OMC Cobras, Bravos, #1 Drives made from 1966 to Current makes, including the Pre Alpha (R), Alpha one Gen 2 and “MR”. This requires a hole drilled in your engine alignment tool. We cannot pre-drill these as different manufacturers make the mount in different places. The gimbal bearing install tool comes with directions on where to drill the hole in the outdrive alignment tool for correct lineup. Made of cold rolled steel, which is sturdy and durable. Tool comes with black oxide finish preventing corrosion to assure many years of service.
  • THE BELLOW RING/ RETAINER SLEEVE INSTALLATION TOOL: Made of PVC Plastic. Drive shaft bellow sleeve installation tool helps install the aluminum ring into the Alpha 1 Generation 2, Bravo, Blackhawk U-Joints Bellows. This tool is an aftermarket OEM part that replaces Mercury Mariner 91-818162. HINGE PIN TOOL (OEM 91-78310) compatible with MerCruiser Sterndrive Alpha One, Alpha One Generation Two, Bravo One, Bravo Two, Bravo Three, R, MP, MC-1.
  • GIMBAL BEARING GREASE SEAL INSTALLATION TOOL: This tool is designed for Mercruiser Bravo, OMC Cobra, Pre Alpha (R), Alpha 1 (MR), Generation 2, All #1 Drives from 1966 to the present. This seal installer will allow you to drive the grease seal in straight for proper installation.
Brand: MBS Mfg
Manufacturer: MBS Manufacturing Inc
Part Number: C4TB8S3
Isin: I7LMHKVQVYPW

$326.72

  • Free shipping in US
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  • Free 30-Day returns

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Gimbal Bearing Installer Alignment Tool for Mercruiser Grease Seal Bellow Retainer Ring Installer Tool Kit Hinge Pin for Alpha1 Gen 2, Bravo OMC Cobra

Gimbal Bearing Installer Alignment Tool for Mercruiser Grease Seal Bellow Ret...

$326.72

Product Overview

  • MADE IN USA: All tools are professionally made in the United States on the state of the art CNC equipment with 100% quality inspection. THIS IS A SET OF FIVE (5) TOOLS: Engine Alignment Tool; Drive Shaft Bellow Sleeve Installation Tool (PVC Plastic); Gimbal Bearing Installation Tool; Grease Seal Installation Tool; Hinge Pin Tool (OEM 91-78310).
  • ENGINE ALIGNMENT BAR TOOL: Compatible with MerCruiser Sterndrives including Pre Alpha, Alpha 1 Gen 2, MR, R, all MerCruiser Bravo. Compatible with Volvo SX and OMC Cobra Drives. This Tool will correctly align all OMC Cobra and Mercruiser Outdrives with the exception of the Mercruiser TR and TRS Outdrive Models. This Tool is similar to MerCruiser P/N 91-805475A1 which used to be P/N 91-57797A3. Compatible with Volvo SX P/N 3851083 and OMC Cobra P/N 18-4442. The length of the bar is approximately 23-5/8 inch. Tool is made from high quality 1045 steel, and includes an eyebolt which gives you the option of hanging the tool. Alignment Tool Comes Without Black Oxide Coating.
  • GIMBAL BEARING INSTALLER: This tool compatible with OMC Cobras, Bravos, #1 Drives made from 1966 to Current makes, including the Pre Alpha (R), Alpha one Gen 2 and “MR”. This requires a hole drilled in your engine alignment tool. We cannot pre-drill these as different manufacturers make the mount in different places. The gimbal bearing install tool comes with directions on where to drill the hole in the outdrive alignment tool for correct lineup. Made of cold rolled steel, which is sturdy and durable. Tool comes with black oxide finish preventing corrosion to assure many years of service.
  • THE BELLOW RING/ RETAINER SLEEVE INSTALLATION TOOL: Made of PVC Plastic. Drive shaft bellow sleeve installation tool helps install the aluminum ring into the Alpha 1 Generation 2, Bravo, Blackhawk U-Joints Bellows. This tool is an aftermarket OEM part that replaces Mercury Mariner 91-818162. HINGE PIN TOOL (OEM 91-78310) compatible with MerCruiser Sterndrive Alpha One, Alpha One Generation Two, Bravo One, Bravo Two, Bravo Three, R, MP, MC-1.
  • GIMBAL BEARING GREASE SEAL INSTALLATION TOOL: This tool is designed for Mercruiser Bravo, OMC Cobra, Pre Alpha (R), Alpha 1 (MR), Generation 2, All #1 Drives from 1966 to the present. This seal installer will allow you to drive the grease seal in straight for proper installation.
Brand: MBS Mfg
Manufacturer: MBS Manufacturing Inc
Part Number: C4TB8S3
Isin: I7LMHKVQVYPW


This is a set of FIVE Tools: Engine Alignment Tool; Drive Shaft Bellow Sleeve Installation Tool (PVC Plastic); Gimbal Bearing Installation Tool; Grease Seal Installation Tool; Hinge Pin Tool (91-78310).

Engine Alignment Bar Tool compatible with MerCruiser Sterndrives including Pre Alpha, Alpha 1 Gen 2, MR, R, all MerCruiser Bravo. Compatible with Volvo SX and OMC Cobra Drives. This Tool will correctly align all OMC Cobra and Mercruiser Outdrives with the exception of the Mercruiser TR and TRS Outdrive Models.

Interchange Part Numbers: Compatible with MerCruiser - P/N 91-805475A1 & 91-57797A3; Compatible with Volvo SX - P/N 3851083; Compatible with OMC Cobra - P/N 18-4442.

The length of the Alignment bar is 23-5/8 inch. Tool is made from high quality 1045 Steel, and includes an eye bolt which gives you the option of hanging the tool. Alignment Tool Comes Without Black Oxide Coating. According to MerCruiser service bulletin No 92-9, the alignment tool must have the following sizes from front to back: 1.010" diameter, 2.200" long (section that fits into coupler), 1.150" diameter, 2.750" long, and 1.375" diameter rest of the bar (section that fits gimbal bearing inside diameter). We test all of our tools for this fit at the shop, using precision gauges and measuring tools.

The Bellow Ring/ Retainer Sleeve Installation Tool made of PVC Plastic. Drive shaft bellow sleeve installation tool helps install the aluminum ring into the Alpha 1 Generation 2, Bravo, Blackhawk U-Joints Bellows. Replaces OEM part number #91-818162.

Gimbal Bearing Installation Tool. This tool is compatible with OMC Cobras, Bravos, #1 Drives made from 1966 to current makes, including the Pre Alpha (R), Alpha 1 MR, and Generation 2. You will need the outdrive coupler alignment tool to use this tool. Note: This requires a hole drilled in your alignment tool. We cannot pre-drill these as different manufacturers make the mounts in different places. The tool comes with directions on where to drill the hole in the alignment tool for correct lineup.

Grease Seal Installation Tool. Used on all Mercruiser #1 Drives, Pre Alpha (R), Alpha One (MR), Generation 2, All Bravos, and OMC Cobra boat. This seal installer will allow you to drive the grease seal in straight for proper installation. You will need the outdrive coupler alignment tool to install the grease seal.

Hinge Pin Tool (91-78310). This tool is used on the hinge pin bolt and separates the housing from the gimbal ring. This tool is compatible with MerCruiser Sterndrives: Alpha One, Alpha One Generation Two, Bravo One, Bravo Two, Bravo Three, R, MP, MC-1. Replaces OEM part number #91-78310.

All our automotive tools are professionally made in the United States on state-of-the-art CNC equipment with 100% quality inspection.

 

Processing Time

  • We process and ship orders Monday through Friday, excluding holidays.
  • Most orders are processed within 1–3 business days, depending on product availability.
  • Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.

Shipping Coverage

We currently ship to addresses within the United States only.

Products may ship from:

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Each product page clearly displays the “Ships From” location before checkout.


Shipping Methods & Estimated Delivery

 

Shipping Method Estimated Delivery Cost
Free Shipping (US) 5–10 business days Free, available on eligible items
Standard Shipping (US to US by Item) 5–10 business days $5.95 for the first item, $3.00 each additional
Standard Shipping (From US Warehouse by Weight) 3–7 business days Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb.
Extended Delivery (Ships from Overseas Warehouse) 10–20 business days $14.50 for the first item, $2.00 each additional

Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.

Free Shipping

We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout. 


Carriers

We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.


Import Duties & Taxes

All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.


Tracking & Notifications

Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.

You can track your shipment anytime using the Track Your Order page on our website.


Order Changes & Cancellations

If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.

Contact: support@ibspot.com


Item Not Received

If your tracking number shows “Delivered” but you haven’t received your package:

  1. Check with your local USPS or UPS office.
  2. Confirm that the shipping address provided was correct.
  3. If the issue remains unresolved, contact support@ibspot.com for assistance.

Damaged or Lost Parcels

If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.


Customer Support

For any questions about shipping, tracking, or delivery, our customer support team is here to help.

Email: support@ibspot.com

We’re always happy to help.

Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.


Order Cancellation Policy

Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.

How to Request a Cancellation

You can contact us through:

Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.


Return Policy

We accept returns for most items within 30 days of delivery for a full refund.

To be eligible for a return:

  • The item must be unused, in the same condition as received, and in its original packaging.
  • A tracking number must be provided to confirm the return shipment.

Non-Returnable Items

Certain products cannot be returned, including:

  • Perishable goods (for example, food, flowers, newspapers, magazines)
  • Intimate or sanitary goods
  • Hazardous materials or flammable liquids/gases
  • Gift cards
  • Downloadable software
  • Some health and personal care items

Partial Refunds (If Applicable)

Partial refunds may be granted in specific situations, such as:

  • Books with obvious signs of use
  • Opened CDs, DVDs, software, or vinyl records
  • Items not in their original condition, damaged, or missing parts not due to our error
  • Items returned more than 30 days after delivery

How to Return an Item

To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.


Shipping Cost for Returns

Please contact us before returning any item.
We will provide a free return shipping label.

If a return is sent back without prior contact or without our provided label, we cannot be held responsible for return shipping costs.

For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.


Refund Processing

Once your return is received and inspected:

  • In-store returns are refunded to the original form of payment or issued as a gift card.
  • Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.

Please allow:

  • 5–7 business days for the return to reach our Returns Center.
  • An additional 3–10 business days for your bank to post the refund to your account.

Damages, Issues & Claims

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Product Claims

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If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.


Exchanges

We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.


Return Address

IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States


Customer Support

Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.

Email: support@ibspot.com
Contact Form: Contact Us page

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