Sierra 18-2354 Carrier Seal for Mercruiser Stern Drive Forward and Reverse Gears

The Sierra 18-2354 Carrier Seal is a round marine seal engineered for Mercruiser stern drive forward and reverse gear applications. It is designed to seal against water intrusion and lubricant loss at the gear carrier, helping protect the internal gear set from corrosion and contamination in the harsh marine environment. Sierra builds this seal to meet or exceed the performance of the original equipment part it replaces, and Sierra supplies OEM engine manufacturers and boat builders with parts of the same quality standard used in this seal.

Each unit is sold individually as a single carrier seal, finished in white with a round profile to match its mounting bore. Its compact, lightweight construction (0.13 pounds) makes it a straightforward, low-cost replacement item to keep on hand for stern drive gear case service.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2354
• Product Name: Carrier Seal
• Application: Mercruiser Forward and Reverse Gears
• Shape: Round
• Color: White
• Weight: 0.13 pounds
• Quantity: 1 seal per package
• UPC: 808282243524

Frequently Asked Questions

What is the Sierra 18-2354 Carrier Seal used for? It is a carrier seal used in Mercruiser stern drive forward and reverse gear applications, sealing the gear carrier to help prevent water intrusion and lubricant loss.

Is the 18-2354 seal round or another shape? The Sierra 18-2354 Carrier Seal has a round shape, matching the round carrier bore it seals in the gear case.

What color is the Sierra 18-2354 Carrier Seal? It is white in color.

How much does the Sierra 18-2354 Carrier Seal weigh? The seal weighs 0.13 pounds.

How many seals come in one package of the 18-2354? One Sierra 18-2354 Carrier Seal is included per package.

Is the Sierra 18-2354 a genuine OEM part or an aftermarket replacement? Sierra 18-2354 is an aftermarket part manufactured by Sierra, built to meet or exceed the performance of the original equipment part it replaces.

Does Sierra make this carrier seal, or another manufacturer? Yes, the 18-2354 Carrier Seal is manufactured by Sierra, a supplier of parts to OEM engine manufacturers and boat builders.

What gear case application does the 18-2354 carrier seal fit? This seal is categorized for Mercruiser forward and reverse gear applications on stern drive units.

Can the 18-2354 Carrier Seal be used as a routine maintenance replacement part? Yes, at 0.13 pounds and sold individually, the Sierra 18-2354 is a compact replacement seal suited to gear carrier service on Mercruiser stern drives.

What is included when I order the Sierra 18-2354? The order includes one Sierra 18-2354 Carrier Seal.