Description
Quicksilver 31990Q02 Propeller Nut Kit for Rubber Hub Propellers
The Quicksilver 31990Q02 Propeller Nut Kit is designed for select Mercury, Mariner, and Force outboards using rubber hub equipped propellers. This propeller hardware kit includes the forward thrust washer, tab washer, and propeller nut needed for compatible propeller installation and service.
Key Features
- Quicksilver propeller nut kit
- Part number: 31990Q02
- Mercury part reference: 11-31990Q02
- Designed for select Mercury, Mariner, and Force rubber hub propeller applications
- For use only with rubber hub equipped propellers
- Includes one propeller nut, tab washer, and forward thrust washer
- Install thrust washer, propeller, and tab washer before installing prop nut
- Do not operate your engine or drive without all propeller hardware in place
- Grease prop shaft splines with Mercury 2-4-C or Mercury Special Lube 101 to aid future propeller removal
Fitment / Product Details
- Brand: Quicksilver
- Part Number: 31990Q02
- Mercury Part Reference: 11-31990Q02
- Product Type: Propeller nut kit / propeller hardware kit
- Application: Select Mercury, Mariner, and Force rubber hub propeller applications
- Engine Types: Mercury, Mariner, and Force outboards using rubber hub equipped propellers where 31990Q02 is specified
- HP Range: Select 30HP to 75HP applications
- Propeller Hub Type: Rubber hub equipped propellers only
- Prop Shaft Diameter: 3/4 in applications where specified
- Spline Count: 13-tooth spline applications where specified
- Gearcase Reference: Standard gearcase applications, commonly 3-1/4 in gearcase group where specified
- Assembly Location: Propeller shaft / propeller hardware assembly
- Fitment Note: Match part number 31990Q02 or 11-31990Q02 to your Mercury, Mariner, or Force outboard, rubber hub propeller, prop shaft diameter, 13-tooth spline count, thrust washer, tab washer, propeller nut, and owner’s manual before ordering.
What’s Included
- 73345A1: Forward thrust washer
- 76281: Tab washer
- 69578Q1: Propeller nut
Expanded Fitment
- Mercury 30HP Outboards: 1989 and newer applications using rubber hub equipped propellers
- Mercury 50HP Outboards: 1991 and newer applications using rubber hub equipped propellers, excluding BigFoot outboards
- Mariner 40HP Outboards: 1989 and newer applications using rubber hub equipped propellers
- Mariner 60HP Outboards: 1991 and newer applications using rubber hub equipped propellers, excluding BigFoot outboards
- Force 40HP to 50HP Outboards: 1995 and newer applications using rubber hub equipped propellers
- Force 70HP Outboards: 1991 and newer applications using rubber hub equipped propellers
- Force 75HP Outboards: 1996 applications using rubber hub equipped propellers
Why You Should Buy
- Correct Quicksilver propeller nut kit for applications requiring 31990Q02
- Includes the key propeller mounting hardware needed for compatible rubber hub propeller installation
- Designed for select Mercury, Mariner, and Force outboards by horsepower and year range
- Useful for propeller replacement, missing hardware replacement, and seasonal propeller service
- Helps ensure the thrust washer, tab washer, and propeller nut are installed before operation
- Best selected by exact part number, rubber hub propeller type, spline count, prop shaft diameter, and owner’s manual application
Common Applications
- Mercury 30HP and 50HP propeller hardware replacement
- Mariner 40HP and 60HP propeller nut kit replacement
- Force 40HP, 50HP, 70HP, and 75HP propeller hardware service
- Rubber hub propeller installation
- Forward thrust washer, tab washer, and propeller nut replacement
- Applications requiring Quicksilver 31990Q02 or Mercury 11-31990Q02
FAQ
- What is Quicksilver 31990Q02? Quicksilver 31990Q02 is a propeller nut kit for select Mercury, Mariner, and Force outboards using rubber hub equipped propellers.
- What is the Mercury part reference? This kit is also referenced as Mercury 11-31990Q02.
- What horsepower range does this kit fit? This kit fits select Mercury, Mariner, and Force 30HP to 75HP applications by model and year range.
- What hub type is this kit for? This kit is for rubber hub equipped propellers only.
- What prop shaft diameter does this fit? This kit is used with select 3/4-inch prop shaft applications where specified.
- What spline count does this fit? This kit is used with select 13-tooth spline applications where specified.
- What is included in the kit? The kit includes forward thrust washer 73345A1, tab washer 76281, and propeller nut 69578Q1.
- Does this fit BigFoot outboards? No. The listed Mercury 50HP and Mariner 60HP applications exclude BigFoot outboards.
- How should the hardware be installed? Install the thrust washer, propeller, and tab washer before installing the propeller nut.
- Should the prop shaft splines be greased? Yes. To aid future propeller removal, grease the prop shaft splines with Mercury 2-4-C or Mercury Special Lube 101.
- Can I operate without all propeller hardware installed? No. Do not operate your engine or drive without all propeller hardware in place.
- How should I confirm fitment? Match part number 31990Q02 or 11-31990Q02 to your engine model, year, rubber hub propeller, 13-tooth spline count, 3/4-inch prop shaft diameter, thrust washer, tab washer, propeller nut, and owner’s manual before ordering.