Mercury 835257K1 Mercruiser Flo-Torq II Hub Kit

Mercury 835257K1 Flo-Torq II Propeller Hub Kit

The Mercury 835257K1 Flo-Torq II Propeller Hub Kit is a genuine Mercury hub kit designed to help protect the drivetrain from minor damage-causing impacts. The Flo-Torq II system uses a specialized drive sleeve to cushion the propeller hub connection while maintaining dependable propeller performance on compatible applications.

This hub kit is designed for select Mercury, Mariner, and Force outboards, as well as MerCruiser Alpha One and Bravo One sterndrives under 400 HP. It includes the required thrust washer, drive sleeve, splined adapter, tab washer, and prop nut for compatible propeller installations where part number 835257K1 is specified.

Product Features:

• Genuine Mercury Flo-Torq II propeller hub kit
• Specialized drive sleeve helps protect the drivetrain from minor impact damage
• Designed for select Mercury, Mariner, and Force outboard applications
• Also fits select MerCruiser Alpha One and Bravo One sterndrives under 400 HP
• Includes key hub components needed for compatible propeller installation
• Helps support proper fit, propeller performance, and drivetrain protection
• Built to Mercury Marine fit, function, and performance standards

Product Details:

• Brand: Mercury
• Manufacturer Part Number: 835257K1
• Series: Flo-Torq II
• Part Type: Propeller Hub Kit
• Application: Select Mercury, Mariner, Force, and MerCruiser propeller applications
• Horsepower Range: Up to 300 HP outboard applications and under 400 HP sterndrive applications where specified

Kit Includes:

• 8354671 forward thrust washer
• 879637 plastic drive sleeve
• 826074Q1 aft adapter with tab washer
• 8276141 prop nut

Fits Select Applications:

• Mercury 40-60 HP Command Thrust outboards where specified
• Mercury 40-60 HP BigFoot outboards where specified
• Mercury and Mariner 70-300 HP outboards where specified
• Mercury Verado outboards where specified
• Force 90-120 HP outboards where specified
• MerCruiser Alpha One sterndrives where specified
• MerCruiser Bravo One sterndrives under 400 HP where specified

Service Note: Check your owner’s manual or service manual to verify the correct Flo-Torq hub kit, thrust washer, and prop nut part numbers for your specific engine, drive, and propeller combination.

Fitment Note: Hub kit fitment should be verified by engine or drive model, horsepower, propeller series, propeller hub style, shaft size, thrust washer requirements, prop nut requirements, and parts diagram before ordering. Please confirm this Flo-Torq II hub kit is correct for your Mercury, Mariner, Force, or MerCruiser setup before purchasing.

Frequently Asked Questions

What is the Mercury 835257K1 Flo-Torq II Propeller Hub Kit used for?

The Mercury 835257K1 Flo-Torq II Propeller Hub Kit is a genuine Mercury propeller hub kit designed to cushion the propeller hub connection and help protect the drivetrain from minor impact damage. It is intended for compatible Mercury, Mariner, Force, and MerCruiser propeller applications where part number 835257K1 is specified.

What outboards and sterndrives does the Mercury 835257K1 Flo-Torq II hub kit fit?

The 835257K1 fits select Mercury, Mariner, and Force outboards, as well as select MerCruiser Alpha One and Bravo One sterndrives. Listed applications include Mercury 40-60 HP Command Thrust and BigFoot, Mercury and Mariner 70-300 HP, Mercury Verado, Force 90-120 HP, and Bravo One sterndrives under 400 HP where specified.

What is included in the Mercury 835257K1 Flo-Torq II Propeller Hub Kit?

The kit includes an 8354671 forward thrust washer, 879637 plastic drive sleeve, 826074Q1 aft adapter with tab washer, and 8276141 prop nut. These are the listed hub components supplied for compatible propeller installations requiring the 835257K1 kit.

How does the Flo-Torq II system help protect the drivetrain?

The Flo-Torq II system uses a specialized drive sleeve to cushion the propeller hub connection. According to the product description, this design helps protect the drivetrain from minor damage-causing impacts while supporting proper propeller fit and performance on compatible applications.

Is the Mercury 835257K1 compatible with all Mercury or MerCruiser propellers?

No. The 835257K1 is intended for select applications where the part number is specified. Fitment depends on factors including engine or drive model, horsepower, propeller series, hub style, shaft size, thrust washer requirements, and prop nut requirements. Verify these details against the applicable parts diagram before ordering.

How do I verify that the Mercury 835257K1 Flo-Torq II hub kit is correct for my application?

Check your owner’s manual or service manual for the correct Flo-Torq hub kit and related thrust washer and prop nut part numbers. Also verify the engine or drive model, horsepower, propeller series, hub style, shaft size, and required hardware before purchasing the 835257K1.

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