Sierra Oil Seal 18-8349, Interchanges with OMC 911795, Fits OMC Cobra and King Cobra Drives

The Sierra 18-8349 Oil Seal is a precision-sized replacement seal used in the gimbal bearing assembly of OMC Cobra and King Cobra stern drives. It is the seal specified for use with the heavy duty link belt gimbal bearing on these drive units, sealing out water and contaminants while retaining lubrication around the driveshaft where it passes through the bearing housing. Round in shape with a white finish, the seal is built to a 2.186 inch outer diameter, a 1.375 inch shaft size, and a 0.500 inch width, matching the dimensional envelope required for a correct fit in this application.

Sierra manufactures its oil seals to meet or exceed the specifications of the original equipment part being replaced, so boat owners rebuilding or servicing the gimbal bearing on an OMC Cobra or King Cobra drive can use the 18-8349 as a direct, reliable replacement. It is a compact, lightweight component at 0.03 pounds, making it an inexpensive but essential part of a complete gimbal bearing service.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8349
• Outer Diameter: 2.186 inches
• Shaft Size: 1.375 inches
• Width: 0.500 inches
• Weight: 0.03 pounds
• Color: White
• Shape: Round
• UPC: 808282105068
• Application: Used with the heavy duty link belt gimbal bearing

Fitment

• Fits all OMC Cobra and King Cobra Drives

Replaces (OEM)

• OMC 911795
• OMC 3852548

Frequently Asked Questions

What drives does the Sierra 18-8349 oil seal fit? The 18-8349 fits all OMC Cobra and King Cobra Drives, where it is used as the seal for the heavy duty link belt gimbal bearing.

Is the 18-8349 interchangeable with OMC 911795? Yes, Sierra part 18-8349 is interchangeable with OMC 911795 and OMC 3852548, so any of those numbers can be used to identify the correct seal for an OMC Cobra or King Cobra drive.

What size is the 18-8349 oil seal? It measures 2.186 inches outer diameter, 1.375 inches shaft size, and 0.500 inches in width.

How much does the 18-8349 seal weigh? The Sierra 18-8349 oil seal weighs 0.03 pounds.

What color is the Sierra 18-8349 seal? It is white in color and round in shape.

Where is this seal used in the gimbal bearing assembly? The 18-8349 is the seal used with the heavy duty link belt gimbal bearing fitted to OMC Cobra and King Cobra Drives.

Does Sierra make this seal to original equipment standards? Yes, the Sierra 18-8349 is manufactured to meet or exceed the specifications of the original equipment part it replaces.

What is included when ordering part 18-8349? The order includes one Sierra 18-8349 oil seal measuring 0.500 inches wide by 2.186 inches outer diameter.

What is the UPC for the Sierra 18-8349 oil seal? The UPC for this seal is 808282105068.

Can the 18-8349 be used with the gimbal bearing on a King Cobra drive as well as a Cobra drive? Yes, the 18-8349 fits all OMC Cobra and King Cobra Drives, not just one of the two drive lines.

Is 18-8349 a genuine Sierra part number or a generic seal? 18-8349 is Sierra's own part number for this oil seal, offered as a manufactured replacement for the OMC original equipment seal.