Mercury – 100 Hour Maintenance Kit | MerCruiser 4.3L V6 Sterndrive | Complete Service Components | 8M0147050

Overview
Every boater knows the kind of quiet confidence that comes from an engine that starts smoothly and runs strong, season after season. It is not luck — it is maintenance done right. With the Mercury 8M0147050 100 Hour Maintenance Kit, you get everything you need to keep your MerCruiser 4.3L V6 sterndrive performing at its best, all in one neatly packaged, easy-to-use kit. No guesswork. No second-guessing. Just the same dependable parts Mercury installs at the factory, ready to help you stay ahead of wear before it steals power or reliability.

Whether you cruise wide-open bays, pull kids on wakeboards, or spend long days drifting and relaxing, this kit helps ensure your engine is protected and ready for whatever the water hands you next.

Key Features

• Complete 100-hour service kit for MerCruiser 4.3L V6 sterndrive engines

• Includes oil filter, fuel filter, and gearcase drain seals

• Premium filtration with high internal pleat counts for clean, efficient lubrication

• Heavy-duty electroplated filter housings for superior corrosion resistance

• Meets all Mercury Marine OEM performance and durability specifications

Engine & Boat Compatibility

• Fits MerCruiser 4.3L V6 sterndrives made by General Motors (1993 and newer)

• Compatible with models featuring engine-block-mounted oil filters

• Ideal for runabouts, bowriders, small cruisers, and multipurpose family boats

• Suitable for both freshwater and saltwater environments when paired with proper lubricants

Performance & Practical Benefits
A 100-hour service is more than a checklist — it is a reset that keeps your engine strong, smooth, and dependable. With the Mercury Marine part number 8M0147050 kit, you will notice sharper throttle response, steadier oil pressure, and more consistent cooling performance. The filters clean efficiently without restricting flow, and the new gearcase seals help maintain a tight, leak-free lower unit that stands up to the constant stress of marine operation.

Everything fits exactly as it should because it is all genuine Mercury gear. Threads catch cleanly. Seals seat properly. And installation is straightforward even for boaters who prefer to handle their own routine service. With this kit, you are not just replacing parts — you are renewing confidence in the heart of your boat.

Why Buy OEM
Aftermarket parts may look similar, but they rarely match the internal quality, corrosion protection, and precision engineering built into OEM Mercury components. Mercury designs its filters to withstand high load, high heat, and constant exposure to moisture — the exact conditions your engine faces every outing.

Buying OEM means fewer surprises, longer service life, and performance that stays true to the engine’s original design. It is simply the smarter choice for anyone who plans to keep their boat running for years, not just seasons.

FAQ Section

Q1: Which engines does this kit fit?
It fits MerCruiser 4.3L V6 sterndrive engines built by General Motors from 1993 onward with block-mounted oil filters.

Q2: What makes this different from aftermarket kits?
Genuine Mercury filters offer better filtration media, stronger housings, and perfect fitment — all engineered for real-world marine demands.

Q3: How do I know this is the right kit for my engine?
Check your engine’s serial number and confirm it is a 4.3L V6 model from 1993 or newer with the oil filter mounted directly to the block.

Q4: Can it be used in saltwater and freshwater?
Yes. All components are designed for reliable performance in either environment.

Q5: Is installation easy for most owners?
If you are comfortable with basic maintenance, you will find the installation simple using common tools