Mercury – Vengeance 3-Blade Stainless Steel Propeller | 9.8" Diameter x 9.5" Pitch | Right-Hand Rotation | 3-Blade | Stainless Steel | Polished Finish | 899818A05

Overview

There is something deeply satisfying about how a good stainless-steel prop feels under throttle — that solid, sure-footed push as your boat glides forward with confidence. The Mercury Vengeance 3-Blade Stainless Steel Propeller (Part Number 899818A05) captures that feeling perfectly. It’s the kind of prop you can rely on whether you’re exploring calm inland waters or running the coastline on a breezy afternoon. The Vengeance has that solid stainless feel — tough, responsive, and built for boaters who want dependable performance and a smoother ride every time out

Key Features

• Diameter and Pitch: 9.8" Diameter x 9.5" Pitch

• Rotation: Right-Hand

• Blade Count: 3

• Material: Premium Stainless Steel

• Finish: Polished Stainless Finish for durability and shine

• Hub System: Includes rubber hub kit 897001T for vibration absorption and drivetrain protection

• Design Notes: Precision-engineered blades for strong holding power, efficient thrust, and reliable reverse control

Engine & Boat Compatibility

• It is Designed for Mercury and Mariner 25–30 HP FourStroke outboards (2006 and newer)

• Ideal upgrade for boaters currently running aluminum props who want the added durability of stainless steel

• It has a strong fit for small fishing boats, aluminum runabouts, and compact utility boats

• Performs well across a range of boating styles — from trolling and cruising to light towing and general recreation

Performance Benefits

The Mercury Vengeance delivers that unmistakable stainless-steel confidence from the first throttle push. Its 9.8" x 9.5" pitch finds the perfect balance between acceleration and control, giving your boat crisp responsiveness and a steady, planted feel through every turn. You’ll notice how firmly it grips the water — smooth on acceleration, reliable at cruise, and predictable in reverse.

• Strong Thrust and Grip: The Vengeance propeller bites cleanly through the water, giving your boat steady lift and solid forward motion without slip.

• Smooth and Quiet Operation: The rubber hub system minimizes vibration, keeping the ride calm and reducing fatigue at the tiller or wheel.

• Durable Stainless Steel Build: Crafted from premium stainless steel, it resists corrosion, bends, and dings far better than aluminum props.

• Efficient in Forward and Reverse: Designed to hold tight in turns and provide dependable thrust when backing up — great for docking or maneuvering in tight spaces.

• Low Maintenance: Stainless steel’s natural resilience makes upkeep simple — just rinse and go.

You’ll also appreciate how balanced it feels at higher speeds. The precision-machined blades keep vibration low, which not only protects your drivetrain but gives you that reassuring sense of control when conditions get choppy.

Why Is This Prop Is A Strong Choice vs. Alternatives?

The Mercury Vengeance 899818A05 is more than just a stainless upgrade — it’s a long-term investment in performance. For boaters stepping up from aluminum, it’s a game changer: stronger, smoother, and more durable. Mercury’s engineering ensures a perfect OEM fit, meaning you get consistent performance without the guesswork.

While aluminum props may cost less up front, they can’t match stainless steel’s longevity or precision. The Vengeance stands up to light debris, occasional bumps, and years of heavy use without losing balance or shape. And with its mirror-polished finish, it not only looks sharp but resists corrosion in both saltwater and freshwater. It’s an easy choice for boaters who want to spend more time on the water and less time worrying about equipment.

FAQ Section

Q1: Which Mercury engines does the Vengeance 9.8" x 9.5" fit?

This prop fits Mercury and Mariner 25–30 HP FourStroke outboards from 2006 and newer.

Q2: What makes this propeller different from other Mercury options?

The Vengeance is built from premium stainless steel, offering greater durability, corrosion resistance, and holding power than aluminum props.

Q3: How do I know if this pitch or size is right for my boat?

If you’re running a 25–30 HP outboard and want strong acceleration with smooth control, the 9.5" pitch is a balanced, versatile choice. Check your owner’s manual for confirmation.

Q4: Can this prop be used in both saltwater and freshwater?

Yes. The stainless steel finish resists corrosion in both environments. A light rinse after use will help preserve its polished surface.

Q5: What hub system does it use?

It comes with Mercury’s rubber hub kit 897001T, which absorbs vibration and helps protect your drivetrain from damage caused by light underwater impacts.