Mercury – MerCruiser 6.2L MPI 300 Hour Maintenance Kit | Precision Service Kit | Marine-Ready Components | 8M0147070

Overview

There’s a certain peace you feel when you know your engine is cared for the right way. When you hit the throttle and everything hums exactly as it should, it reminds you why good maintenance matters out on open water. The Mercury Marine part number 8M0147070, a complete 300-hour maintenance kit for MerCruiser 6.2L MPI engines with Bravo sterndrives, gives you that confidence every time you leave the dock. It’s the kind of kit seasoned boaters keep on hand because they know a smooth-running engine is more than convenience — it is freedom, safety, and the heart of every good day on the water.

Key Features

• Full 300-hour service kit designed for MerCruiser 6.2L MPI engines with Bravo sterndrive systems
• Includes premium oil filter, fuel filter, gearcase drain seals, spark plugs, thermostat, thermostat gasket, serpentine belt, PCV valve and seawater pump impeller kit
• Durable construction with corrosion-resistant housings for extended life
• Precision-engineered filtration components with high pleat counts for consistent fuel and oil flow
• Designed for tight, proper fitment that maintains factory performance standards

Engine & Boat Compatibility

• Fits MerCruiser 6.2L Multi Port Injection gasoline engines (2015 and newer)
• Built for Bravo sterndrive applications
• Common on cruisers, runabouts, sport boats and family weekenders
• Ideal for owners who want factory-level service in a convenient package

Performance & Practical Benefits

A maintenance kit may sound simple, but anyone who has logged real hours offshore knows how much depends on the small things. The right belt, a clean filter or a fresh impeller can be the difference between a steady ride home and a long call for help. This Mercury Marine part delivers the kind of tight, sure fit that makes installation feel natural rather than forced. Spark plugs seat cleanly. Filters turn on with that reassuring snugness. The impeller slides into place without a fight.

Once everything is replaced, you can feel the difference in how your engine breathes and runs. Oil pressure stabilizes, throttle response sharpens and the whole powertrain feels smoother when you ease onto plane. The components in this kit are built to handle heat, vibration and long hours in both freshwater and saltwater, giving you a level of reliability you can feel — steady, predictable and trustworthy.

Why Buy OEM

Choosing an original Mercury Marine part is not about brand loyalty — it is about knowing your engine gets exactly what it was designed to use. With OEM parts, tolerances match, materials match and performance lines up with factory expectations. Over the long run, it saves money because you are not chasing fitment problems or premature wear. When a fellow boater asks for real-world advice, you tell them the truth: go with the part that was engineered for the job. It works right the first time and keeps your weekends simple.

FAQ

Q1: Which Mercury engines does this product fit?

It fits MerCruiser 6.2L Multi Port Injection engines paired with Bravo sterndrives from 2015 and newer.

Q2: What makes this part different from aftermarket alternatives?

The fit and feel are better. Mercury builds every component to match factory specifications, so installation is smoother and performance stays consistent.

Q3: How do I know if this is the correct replacement for my setup?

If you run a MerCruiser 6.2L MPI with a Bravo sterndrive, this is the kit Mercury recommends for your 300-hour service.

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

Yes, all components are built to hold up in either environment with proper care.

Q5: Is installation straightforward?

Most boat owners familiar with basic engine service find the process smooth thanks to the precise fit of each component.