Sierra 18-2772-1 Transom Seal Kit for OMC SX Cobra Drives with Cone Clutch and Volvo SX Drives

The Sierra 18-2772-1 Transom Seal Kit is a complete resealing kit for the transom assembly on OMC SX Cobra Drives equipped with a cone clutch, and is also used on Volvo SX Drives. It bundles the gimbal bearing and bellows components needed to reseal the drive-to-transom connection, restoring the watertight barrier that keeps water out of the boat while allowing the drive to steer and tilt. Each component in the kit carries its own original equipment reference number, so it can be matched directly against the parts it is replacing during a rebuild.

The kit includes an 18-2100 gimbal bearing and an 18-2765 bellows, each cross-referenced to their original equipment numbers, along with an 18-1074 bellows. Sierra engineers its parts to meet or exceed the specifications of the original equipment they replace, making this kit suited for a full transom reseal rather than a single-component patch job.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2772-1
• Product Name: Transom Seal Kit
• Weight: 1.57 pounds
• Color: white
• UPC: 808282224929
• Kit Contents: 18-2100 Gimbal Bearing (O.E. 3853807, Qty 1); 18-2765 Bellows (O.E. 3854127, Qty 1); 18-1074 Bellows

Fitment

• OMC SX Cobra Drives with cone clutch
• Volvo SX Drives

Replaces (OEM)

• 3853807
• 3854127

Frequently Asked Questions

What drives does the Sierra 18-2772-1 Transom Seal Kit fit? The 18-2772-1 kit is for OMC SX Cobra Drives with a cone clutch, and it is also used on Volvo SX Drives.

What is included in the 18-2772-1 Transom Seal Kit? The kit contains an 18-2100 gimbal bearing (O.E. Number 3853807), an 18-2765 bellows (O.E. Number 3854127), and an 18-1074 bellows, one of each.

Does this kit include the gimbal bearing? Yes, the Sierra 18-2772-1 kit includes an 18-2100 gimbal bearing along with the bellows components needed for a transom reseal.

What OEM numbers does this kit cross-reference to? The gimbal bearing in the 18-2772-1 kit corresponds to O.E. Number 3853807, and the 18-2765 bellows corresponds to O.E. Number 3854127.

How much does the Sierra 18-2772-1 Transom Seal Kit weigh? The 18-2772-1 Transom Seal Kit weighs 1.57 pounds.

What color are the components in this kit? The components in the Sierra 18-2772-1 Transom Seal Kit are white.

Will this kit work on a cone clutch SX Cobra drive? Yes, the 18-2772-1 kit is specifically designed for OMC SX Cobra Drives with a cone clutch.

Is the Sierra 18-2772-1 kit genuine OEM or aftermarket? The 18-2772-1 is a Sierra aftermarket kit engineered to meet or exceed the specifications of the original equipment parts it replaces.

How many bellows come in the 18-2772-1 kit? Two bellows are included in the Sierra 18-2772-1 kit: an 18-2765 bellows and an 18-1074 bellows.

What is the UPC for the Sierra 18-2772-1 Transom Seal Kit? The UPC for the Sierra 18-2772-1 Transom Seal Kit is 808282224929.

Can this kit be used on a Volvo SX Drive? Yes, in addition to OMC SX Cobra Drives with a cone clutch, the 18-2772-1 kit is also used on Volvo SX Drives.

What is the part number for the gimbal bearing included in this kit? The gimbal bearing included in the 18-2772-1 kit is part number 18-2100, cross-referenced to O.E. Number 3853807.