Mercury 8M0187255 Propeller Bore Sleeve

Mercury 23-8M0187255 Propeller Bore Sleeve

The Mercury 23-8M0187255 Propeller Bore Sleeve is a genuine OEM replacement sleeve for select Mercury outboard propeller applications. This propeller bore sleeve is used where part number 23-8M0187255 is specified by the Mercury parts diagram or service manual.

This sleeve fits select 65-150 HP Mercury EFI, EFI Jet, and SeaPro outboards with 2.38:1 standard or counter-rotation propeller shaft applications where specified. Gear ratio must be verified before ordering to help ensure correct fitment and avoid processing delays.

Product Features:

• Genuine OEM Mercury propeller bore sleeve
• Replacement propeller bore sleeve for select Mercury outboards
• Fits compatible 2.38:1 standard and counter-rotation propeller shaft applications
• Designed for select 65-150 HP EFI, EFI Jet, and SeaPro outboards where specified
• Direct replacement where part number 23-8M0187255 is specified
• Supersedes Mercury 23-8M0054695
• Built to Mercury Marine fit, function, and performance standards

Product Details:

• Brand: Mercury
• Manufacturer Part Number: 23-8M0187255
• Previous / Superseded Part Number: 23-8M0054695
• Part Type: Propeller Bore Sleeve
• Gear Ratio: 2.38:1 where specified
• Rotation: Standard and counter rotation applications where specified
• Application: Select Mercury outboards

Fits Select Mercury Applications:

• 65 HP EFI Jet outboards, serial number 2B095049 and up, with 2.38:1 standard or counter-rotation propeller shaft where specified
• 75 HP EFI outboards, serial number 2B095049 and up, with 2.38:1 standard or counter-rotation propeller shaft where specified
• 75 HP EFI SeaPro outboards, serial number 2B095049 and up, with 2.38:1 standard or counter-rotation propeller shaft where specified
• 80 HP EFI outboards, serial number 2B095049 and up, with 2.38:1 standard or counter-rotation propeller shaft where specified
• 80 HP EFI Jet outboards, serial number 2B095049 and up, with 2.38:1 standard or counter-rotation propeller shaft where specified
• 90 HP EFI outboards, serial number 2B095049 and up, with 2.38:1 standard or counter-rotation propeller shaft where specified
• 90 HP EFI SeaPro outboards, serial number 2B095049 and up, with 2.38:1 standard or counter-rotation propeller shaft where specified
• 115 HP EFI outboards, serial number 2B095049 and up, with 2.38:1 gear ratio where specified
• 115 HP EFI SeaPro outboards, serial number 2B095049 and up, with 2.38:1 gear ratio where specified
• 135 HP EFI outboards, serial number 2B131942 and up
• 150 HP EFI SeaPro outboards, serial number 2B139139 and up
• 150 HP EFI outboards, serial number 1B905505 and up

Supersedes:

• 23-8M0054695

Important Ordering Note: Please verify your gear ratio before ordering. If gear ratio information is required and not provided after your order is placed, processing may be delayed.

Service Note: See your Mercury owner’s manual or service manual for specific application details, propeller bore sleeve location, installation instructions, propeller shaft inspection, and related service procedures.

Fitment Note: Propeller bore sleeve fitment should be verified by outboard model, horsepower, serial number, gear ratio, rotation, propeller shaft configuration, parts diagram, and existing sleeve part number before ordering. Please confirm this propeller bore sleeve is correct for your Mercury outboard before purchasing.

Frequently Asked Questions

What is the Mercury 23-8M0187255 Propeller Bore Sleeve used for?

The Mercury 23-8M0187255 Propeller Bore Sleeve is a genuine OEM replacement sleeve for select Mercury outboard propeller applications. It is used where part number 23-8M0187255 is specified by the Mercury parts diagram or service manual.

Which Mercury outboards does the Mercury 23-8M0187255 Propeller Bore Sleeve fit?

The 23-8M0187255 is listed for select 65–150 HP Mercury EFI, EFI Jet, and SeaPro outboards. Specific fitment depends on horsepower, serial number, gear ratio, rotation, and propeller shaft configuration, so verify all applicable details before ordering.

What gear ratio is required for the Mercury 23-8M0187255?

The Mercury 23-8M0187255 is listed for select 2.38:1 standard and counter-rotation propeller shaft applications. Gear ratio requirements vary by application, so verify the gear ratio for your specific Mercury outboard before ordering.

Does the Mercury 23-8M0187255 replace another part number?

Yes. The Mercury 23-8M0187255 Propeller Bore Sleeve supersedes Mercury part number 23-8M0054695. Verify your existing sleeve part number and the applicable Mercury parts diagram or service manual to confirm the correct replacement.

What should I verify before ordering the Mercury 23-8M0187255 Propeller Bore Sleeve?

Verify your outboard model, horsepower, serial number, gear ratio, rotation, and propeller shaft configuration. You should also confirm that the Mercury parts diagram or service manual specifies part number 23-8M0187255 for your application.

Where can I find installation information for the Mercury 23-8M0187255?

Refer to your Mercury owner's manual or service manual for specific application details, propeller bore sleeve location, installation instructions, propeller shaft inspection, and related service procedures. These resources should also be used to verify fitment before installation.

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