Sierra 18-2054 Power Trim Oil Seal for Mercury/Mariner Outboards - Replaces Honda 91253-ZW1-003, Mercury 26-76384, 26-816464

The Sierra 18-2054 is a power trim oil seal engineered for Mercury/Mariner outboard motors. It is designed to seal the power trim system, helping to keep trim/tilt fluid contained and prevent water intrusion into the trim housing, both of which are essential to keeping the power trim and tilt mechanism operating smoothly and protected from corrosion. As a direct-fit replacement seal, it is installed during power trim service, rebuilds, or when an existing seal has begun to leak or degrade.

Sierra manufactures this seal to match the fit and function of the original equipment seal it replaces, making it a straightforward drop-in replacement for outboard owners and marine technicians performing trim system maintenance. It is sold as a single oil seal (Included Components: Oil Seal) and is backed by a limited warranty.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2054
• Product Type: Oil Seal
• Application: Power Trim
• Fitment: Mercury/Mariner Outboard
• Weight: 0.01 pounds
• Package Dimensions: 5.13 inches L x 4.0 inches W x 1.13 inches H
• UPC: 030999310057
• GTIN: 00030999310057
• Warranty: Limited Warranty

Fitment

• Mercury/Mariner outboard motors (power trim system)

Replaces (OEM)

• Honda 91253-ZW1-003
• Mercury Marine 26-76384
• Mercury Marine 26-816464

Frequently Asked Questions

What does the Sierra 18-2054 oil seal fit? The Sierra 18-2054 is a power trim oil seal designed for Mercury/Mariner outboard motors.

Is the Sierra 18-2054 a genuine OEM part or aftermarket? The Sierra 18-2054 is manufactured by Sierra as a replacement seal, not an original Mercury/Mariner factory part, but it is built to match the fit and function of the OEM seal it replaces.

What OEM part numbers does the 18-2054 cross-reference to? This seal is equivalent to Honda 91253-ZW1-003 and Mercury Marine 26-76384 and 26-816464, so it can be ordered using any of those numbers as a reference for the Sierra 18-2054.

How much does the 18-2054 oil seal weigh? The Sierra 18-2054 power trim oil seal weighs 0.01 pounds.

What are the package dimensions for the 18-2054? The Sierra 18-2054 ships in packaging measuring 5.13 inches long, 4.0 inches wide, and 1.13 inches high.

What is included when I order the 18-2054? One oil seal is included with each order of the Sierra 18-2054; no additional hardware or gaskets are packaged with it.

Where on the outboard is this seal used? The Sierra 18-2054 is used in the power trim system of Mercury/Mariner outboard motors, where it helps seal the trim/tilt mechanism.

Does the Sierra 18-2054 come with a warranty? Yes, the Sierra 18-2054 oil seal is covered by a limited warranty.

Can I use the 18-2054 as a direct replacement during trim system service? Yes, the Sierra 18-2054 is intended as a direct replacement seal for power trim service or rebuilds on applicable Mercury/Mariner outboards.

Is the Sierra 18-2054 sold individually or in a kit? The Sierra 18-2054 is sold as a single oil seal, not as part of a multi-piece kit.