Mercury – Throttle Body Isolator | Verado L6 Series | Hard-Anodized Vibration Damper | 8M0113513

Overview

When you spend enough time behind the helm of a Verado-powered boat, you start to appreciate the little things that keep the ride smooth. Not just the big components, but the quiet heroes tucked inside the engine — the ones that steady the noise, calm the vibration, and help the powerband feel clean from idle to wide open throttle. The Mercury 8M0113513 Isolator is one of those parts. It takes something you might never see and turns it into a difference you’ll absolutely feel, especially on long days when the water is rolling and the engine is working hard. Knowing a small piece of hardware can protect your throttle body and keep the engine breathing evenly brings a level of comfort that only seasoned boaters fully understand.

Key Features

• Reduces vibration transferred to the throttle body for smoother engine operation
• Fits select Mercury L6 Verado outboards across multiple horsepower ranges
• Hard-anodized finish for strength and corrosion resistance
• Integrated rubber adhesive creates a secure, stable seal
• Built and tested for long-term durability in harsh marine environments

Engine & Boat Compatibility

• Fits Mercury L6 200–250 horsepower Verado outboards (serial numbers 0T98000–2B144122)
• Fits Mercury L6 275–300 horsepower Verado outboards (serial numbers 1B381712–2B578935)
• Fits Mercury L6 350–400 horsepower Verado outboards (serial numbers 2B141124–3B342962)
• Commonly used on center consoles, offshore fishing boats, performance hulls, pontoon tri-toons, and coastal cruisers

Performance & Practical Benefits

A good isolator is one of those parts you rarely think about — until you feel the engine without it. This Mercury Marine part steadies the throttle body, reducing unwanted vibration that can affect airflow consistency over time. With the isolator in place, the throttle response feels cleaner, especially during low-speed maneuvering or when you’re coming out of the hole and pushing onto plane.

The hard-anodized finish gives the part a tight, durable shell that holds up against saltwater, heat cycles, and constant engine movement. Meanwhile, the bonded rubber adhesive ensures the part stays seated securely, creating a firm but flexible buffer between the engine and the throttle components. It’s the kind of upgrade that adds longevity to your system while quietly improving the overall experience of running a Verado — smoother, steadier, more predictable.

Why Buy OEM

With vibration-sensitive components, precision fitment matters. Mercury Marine parts like this isolator are engineered around the exact tolerances of the Verado platform. Aftermarket alternatives may look similar, but they rarely match the engineered durometer, the adhesive strength, or the long-term reliability of genuine Mercury hardware. Choosing OEM means you get the right fit the first time, fewer issues down the line, and protection built specifically for your engine’s needs. It’s the practical choice for any boater who wants their Verado to run like it should.

FAQ

Q1: Which Mercury engines use the 8M0113513 Isolator?

It’s designed for L6 Verado outboards from 200 to 400 horsepower, across the serial number ranges listed above.

Q2: What makes it different from an aftermarket isolator?

OEM engineering ensures proper vibration damping, exact material hardness, and a secure seal that generic versions rarely replicate.

Q3: How can I confirm this is the right part for my engine?

Match your engine’s serial number to the compatibility list or check your service manual.

Q4: Is it suitable for both saltwater and freshwater?

Yes — the hard-anodized finish and marine-tested materials hold up in both environments.

Q5: Is installation manageable for most boat owners?

If you’re comfortable performing light service work, installation is straightforward. Most owners can tackle it with basic tools.