Why won’t my MerCruiser come out of gear?

The Smart Interrupt system may help alleviate this issue by momentarily interrupting the engine when shifting.

How does Smart Interrupt reduce strain on the lower shift cable?

Smart Interrupt reduces strain by precisely pausing the engine when transitioning from gear to neutral.

Do I need to bypass my MerCruiser shift interrupter switch with Smart Interrupt?

No, the Smart Interrupt eliminates the need for a bypass by providing an advanced electronic alternative that ensures reliable shifts from gear to neutral without stalling.

Is it compatible with all MerCruiser engines?

Yes, Smart Interrupt is designed for a wide range of MerCruiser and OMC engines. Feel free to contact us if you need specific compatibility information.

Marsden Smart Interrupt – The Only Patented Alternative to MerCruiser and OMC Interrupt Switches

THE SMART INTERRUPT KIT

Click a blue circle for a description of each component. To purchase click here.

SAE PWR - Connects to included Battery Harness

Mounting Bracket for the Control Module

Control Module - Adjust Interrupt Duration

Output Wiring - Connect as per your factory switch or HEI Distributor requires. Supports 'Normally Open' or 'Normally Closed' applications.

USB Smart Sensor

These bags contain the mounting hardware and connectors.

SMART INTERRUPT VS. TRADITIONAL SWITCHES

Much like how electronic ignition systems transformed the auto industry by enhancing reliability and efficiency, the Smart Interrupt is revolutionizing the marine industry with its advanced electronic alternative to traditional mechanical interrupt switches. As the ultimate switch fix for MerCruiser and OMC systems, it eliminates common failure points like corrosion and wear, ensures smoother transitions, reduces maintenance, and delivers a new standard of precision and durability for boaters. The Marsden Smart Interrupt is protected under U.S. Patents 11,401,013 and 12,195,156, reinforcing its innovative and exclusive design.

Versatile Compatibility

Works on MerCruiser and OMC engines. Easily integrates across different setups, making it adaptable and reliable for various boating systems.

Quick Installation

Easy to set up with minimal tools required. Whether you opt for a DIY or professional install, the process is straightforward and easy.

Enhanced Reliability

Reduces mechanical failures, ensuring dependable performance under various conditions and minimizing the need for maintenance.

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Reviews

Here are just a few; we’ve received many more, all of them positive! We’ve sold to customers in over 20 U.S. cities with lakes and waterways, as well as coastal states along the Pacific and Atlantic Oceans, and even as far as Australia. See Reviews for SMART INTERRUPT

**Rob W.** – *Jan 15, 2022*: "I've been boating for decades, and a couple of my boats were plagued with shifting problems and stalling. This product is great! I'm surprised no one came up with this sooner!" **Rating**: 5/5

**Sarah K.** – *March 10, 2022*: "I was skeptical at first, but after struggling with unreliable OEM interrupts, I gave the Smart Interrupt a try. The difference is like night and day. Shifting is smoother and more precise. Installation was a breeze." **Rating**: 5/5

**James L.** – *June 5, 2022*: "Absolutely game-changing! Installed the Smart Interrupt on my boat and noticed a significant improvement in shifting reliability. No more being stuck in gear or restarting the engine." **Rating**: 5/5

**Emily S.** – *Aug 22, 2022*: "I can’t praise the Smart Interrupt enough! The adjustable duration feature is fantastic. Installation was a breeze." **Rating**: 5/5

FAQ

Got questions? We’ve got answers. If you have other questions, feel free to use our contact form below.

What is the Smart Interrupt, and how does it work?

The Smart Interrupt is an advanced, patented electronic alternative to traditional mechanical shift interrupt switches. It momentarily interrupts the engine when transitioning from gear to neutral, ensuring smoother transitions and reducing wear on critical components.

Is the Smart Interrupt compatible with my boat's engine?

Yes, the Smart Interrupt is designed to be compatible with a wide range of MerCruiser and OMC engines, making it adaptable for various setups. Please refer to the product details or contact us to confirm specific engine compatibility.

Does the Smart Interrupt improve the overall performance of my boat?

Yes, the Smart Interrupt enhances performance by providing smoother transitions from gear to neutral, reducing the risk of stalling and protecting key components like the lower shift cable. This leads to a more reliable and efficient boating experience.

Does the Smart Interrupt require any adjustments after installation?

No, once the Smart Interrupt is installed, it is calibrated to function automatically and does not require ongoing adjustments. It’s a plug-and-play solution designed for long-term reliability. However, if your engine has a high RPM idle, you may want to increase the interrupt duration to ensure the dog clutch has enough time to disengage.

How does the Smart Interrupt protect key components like the lower shift cable?

By precisely interrupting the engine during gear-to-neutral transitions, the Smart Interrupt reduces strain on the lower shift cable, minimizing wear and extending the lifespan of this critical component.

What makes the Smart Interrupt more reliable than a factory-installed interrupt switch?

The Smart Interrupt is an advanced electronic alternative to traditional mechanical switches, eliminating common failure points like corrosion, wear, and misalignment. Its state-of-the-art design ensures consistent, long-lasting reliability.

GET IN TOUCH

465 Nevada Way
Boulder City, NV 89005
1-844-MARSDEN
1-844-627-7336
support@smartinterrupt.com