Mercury – BP7HS Spark Plug Pack | Ignition System | Copper Core | 8M0114744

Overview

There’s a certain confidence that comes from knowing your engine is going to fire up cleanly every single time you turn the key. It’s a small moment, but it sets the tone for the whole day on the water. The Quicksilver 8M0114744 BP7HS Spark Plug pack brings that steady, dependable spark you count on when the wind is calm, the water is quiet, and you’re ready to push off. These plugs help your engine feel responsive and alive, offering that reassuring sense of control boaters appreciate whether they’re drifting for stripers or easing back into the marina at sunset.

Key Features

• Resistor-style spark plugs help minimize radio interference with onboard electronics
• Copper core electrode delivers excellent heat transfer and consistent temperature control
• Built to Mercury Marine’s precise original equipment specifications
• Pack of four plugs for complete multi-cylinder replacement
• Strong electrode wear characteristics for long-lasting ignition performance

Engine & Boat Compatibility

• For Mercury and Mariner engines that require BP7HS spark plugs
• Ideal for small to mid-size outboards found on aluminum fishing boats, tenders, inflatables, and coastal runabouts
• Designed to match factory ignition requirements for dependable performance
• Always confirm fitment with your engine’s owner’s manual

Performance & Practical Benefits

There’s something you can feel when an engine lights off the right way — a smooth, clean pulse at idle, a crisp jump when you advance the throttle, and a steady pull across the power band. These BP7HS plugs deliver exactly that. With their copper core construction, they shed heat quickly and evenly, helping your outboard stay within its ideal operating range. That means fewer misfires, less fouling, and more consistent combustion in real-world boating conditions.

Because they’re resistor plugs, you’ll also see noticeable improvement in electronic clarity. Fish finders stay quiet instead of buzzing, radios pick up clean signals, and onboard electronics remain stable. Installation is quick and straightforward with a common spark plug socket, and the fit feels snug and secure once tightened. The result is a more confident, predictable engine — the kind of performance that lets you enjoy the water instead of worrying about what’s happening under the cowl.

Why Buy OEM

When it comes to spark plugs, the wrong choice can cost you power, fuel efficiency, or even engine health. Genuine Mercury parts like the 8M0114744 BP7HS plugs are engineered specifically for your ignition system, ensuring proper heat range, gap integrity, and long-term durability. Aftermarket plugs may look similar, but they rarely match the exact standards required for marine engines. Using OEM keeps maintenance simple, protects your investment, and ensures the engine runs exactly the way Mercury engineers designed it to. It’s smart, practical, and cost-effective over the long haul.

FAQ

Q1: Which Mercury engines does the 8M0114744 Spark Plug pack fit?

It fits Mercury and Mariner models that specify BP7HS plugs. Always verify with your engine manual.

Q2: What makes these different from aftermarket plugs?

They match Mercury Marine’s heat range, materials, and performance specifications, ensuring proper ignition and long-term reliability.

Q3: How do I confirm this is the right plug for my motor?

Check the plug type and gap listed in your engine’s owner’s manual.

Q4: Can these plugs be used in both freshwater and saltwater environments?

Yes — they’re designed for marine conditions and perform well in both settings.

Q5: Is installation simple for most boaters?

Very. With a basic spark plug socket, most owners can replace a full set in minutes.