Mercury – Quicksilver 835274Q1 Flo-Torq II Hub Kit | Yamaha 150–300HP 4-Stroke & 115–250HP VMAX SHO Outboards | 835274Q1

Overview

The Quicksilver 835274Q1 Flo-Torq II Hub Kit lets you run Mercury or Quicksilver propellers on your Yamaha 150–300HP 4-stroke or 115–250HP VMAX SHO outboard, giving you smoother performance and protection from drivetrain damage.

The Flo-Torq II system is known for its durability and flexibility — it cushions prop impacts, helps prevent gearcase damage, and can be serviced right at the dock. With this hub, you get factory-level fitment, quiet running, and the peace of mind that your prop system can handle whatever the water throws at it.

Key Features

• Purpose: Adapts Mercury or Quicksilver propellers to Yamaha 150–300HP 4-stroke and 115–250HP VMAX SHO outboards for smooth, safe operation.
• Material: Built from high-strength Delrin and corrosion-resistant stainless components for long-lasting marine use.
• Performance: Cushions the drivetrain to absorb shock from sudden prop impacts, reducing vibration and protecting your lower unit.
• Design: Flo-Torq II modular hub design fits Yamaha engines with single-piece OEM thrust washers and is fully field-serviceable.
• Ease of Use / Install: Installs quickly with standard tools — no modification required; simple dockside serviceability.

Engine & Boat Compatibility

• Yamaha 150–300HP 4-stroke outboards
• Yamaha 115–250HP VMAX SHO outboards (single-piece OEM thrust washer)
• Ideal for high-performance center consoles, bass boats, and offshore rigs

Performance & Real-World Benefits

The 835274Q1 Flo-Torq II hub helps smooth out your ride by reducing vibration and protecting against shock loads when running at high speed or striking debris. It’s built to take punishment while still transferring full power to the prop.

If you ever need to service the hub, it’s designed for quick replacement on the water — no specialized tools, no downtime. That means you can spend more time running your boat and less time worrying about mechanical surprises.

Why Choose OEM

Mercury’s Flo-Torq system is the standard for propeller hub protection. Every part is precision-molded for exact torque transfer and durability in salt or freshwater. Aftermarket hubs often lack proper tolerances, leading to vibration or poor alignment.

A genuine Quicksilver Flo-Torq II hub guarantees quiet operation, perfect fit, and proven Mercury-engineered reliability — even on high-horsepower Yamaha outboards.

FAQ

Q1: What engines fit the Quicksilver 835274Q1 kit?
A: It fits Yamaha 150–300HP 4-stroke and 115–250HP VMAX SHO outboards with a single-piece OEM thrust washer.

Q2: What’s included in the kit?
A: One Flo-Torq II hub sleeve, inner and outer components, and installation hardware.

Q3: What makes Flo-Torq II different?
A: It’s a shock-absorbing hub that protects the drivetrain from impact while maintaining full power transfer.

Q4: Can I install it myself?
A: Yes — it’s easy to install or replace with standard hand tools.

Q5: Why OEM instead of aftermarket?
A: OEM ensures correct tolerances, better materials, and a perfect fit every time.