Mercury 88228 18-25HP 1980+ Outboard Prop Nut

Quicksilver 88228 Propeller Nut for 18-25 HP Outboards

The Quicksilver 88228 Propeller Nut is a genuine replacement molded nylon prop nut for select Mercury, Mariner, and Force outboard applications. This propeller nut is used to secure the propeller to the prop shaft where part number 88228 is specified by the Mercury parts diagram or owner’s manual.

Proper propeller nut installation is critical for safe propeller retention and reliable operation. Always install the required aft washer and tab washer before installing the prop nut, and do not operate your engine without the propeller nut properly installed.

Product Features:

• Genuine Quicksilver replacement propeller nut
• Special molded nylon prop nut design
• Fits select Mercury and Mariner 18-25 HP 2-cycle outboards
• Fits select Force 9.9-15 HP outboards
• Fits select Mercury 323cc BigFoot FourStroke outboards
• Helps secure the propeller to the prop shaft
• Direct replacement where part number 88228 is specified
• Built to Mercury Marine fit, function, and performance standards

Product Details:

• Brand: Quicksilver
• Manufacturer Part Number: 88228
• Listing Part Number: 11-88228
• Part Type: Propeller Nut
• Material: Molded nylon
• System: Propeller / prop shaft hardware
• Application: Select Mercury, Mariner, and Force outboards

Fits Select Applications:

• Mercury 18 HP 2-cycle outboards, 1980 and newer, where specified
• Mercury 20 HP 2-cycle outboards, 1980 and newer, where specified
• Mercury 25 HP 2-cycle outboards, 1980 and newer, where specified
• Mariner 18 HP 2-cycle outboards, 1980 and newer, where specified
• Mariner 20 HP 2-cycle outboards, 1980 and newer, where specified
• Mariner 25 HP 2-cycle outboards, 1980 and newer, where specified
• Force 9.9 HP outboards where specified
• Force 15 HP outboards where specified
• Mercury F9.9 BigFoot FourStroke 323cc outboards where specified
• Mercury F15 BigFoot FourStroke 323cc outboards where specified

Installation Notes:

• Must be used to secure the propeller to the prop shaft where specified
• Install the aft washer and tab washer before installing the prop nut
• Do not operate the engine without the propeller nut in place
• Grease prop shaft splines with Mercury 2-4-C or Mercury Special Lube 101 to aid future propeller removal

Service Note: See your owner’s manual for propeller nut installation instructions, Flo-Torq hub details, thrust washer requirements, tab washer placement, and torque or securing procedures for your specific outboard.

Fitment Note: Propeller nut fitment should be verified by engine brand, horsepower, model year, prop shaft configuration, hub system, thrust washer requirements, parts diagram, and existing prop nut part number before ordering. Please confirm this molded nylon propeller nut is correct for your Mercury, Mariner, or Force outboard before purchasing.

California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov