Mercury – Transmission Fluid Filter Kit | Hurth 630 & 800 Series | Canister Style Filtration | 879194241

Overview

Anyone who has spent time around inboard or v-drive boats knows that a healthy transmission is just as important as a smooth-running engine. When the gears bite cleanly and the shift engages without hesitation, the whole boat seems to move with a quiet confidence. But when the transmission begins to feel sluggish or chatter under load, it steals the fun right out of the day. That is why seasoned boaters rely on parts that keep things tight, protected, and predictable. The Mercury Marine part number 879194241 Transmission Fluid Filter Kit is one of those quiet heroes—simple, essential, and the kind of maintenance piece that keeps your boat running like it should, trip after trip.

Key Features

• Canister-style transmission fluid filter designed for select MerCruiser v-drive systems
• Compatible with Hurth 630 and 800 down-angle and v-drive transmissions
• Provides clean, efficient, and consistent transmission fluid filtration
• Helps protect internal gears and clutches from debris and premature wear
• Includes the filter element and replacement gasket for a proper, leak-free seal
• Built to Mercury Marine original equipment standards

Engine & Boat Compatibility

• Designed for MerCruiser applications using Hurth 630 and 800 transmissions
• Works with down-angle and v-drive configurations
• Common on cruisers, sport boats, inboard family runabouts, and performance ski boats
• Suitable for gasoline inboard systems requiring clean, stable transmission fluid flow

Performance & Practical Benefits

You can feel the difference when your transmission is protected by a clean, properly filtered fluid system. Shifts become smooth instead of abrupt. Engagement feels steady instead of hesitant. That quiet clunk when shifting into forward becomes more reassuring than worrisome. It is the kind of improvement only maintenance-minded boaters truly notice, but it pays off every single time you ease back on the throttle.

A fresh filter also keeps transmission temperatures more stable, which is especially important for boats that spend long days towing, cruising, or navigating tidal currents. With the correct Mercury Marine part in place, you get predictable performance and a longer service life out of your transmission. Installing this kit is straightforward—remove the old canister, clean the mounting surface, swap the gasket, and thread the new filter into place. It is a tight, secure fit that does exactly what it is designed to do: keep your transmission fluid free of contaminants that can cause expensive trouble down the line.

Why Buy OEM

With transmission components, precision matters.

• Mercury Marine OEM parts are engineered exactly for the pressures, heat cycles, and tolerances of MerCruiser transmissions
• Aftermarket filters often lack proper flow rates or micron ratings
• Long-term reliability reduces the risk of costly internal transmission repairs
• Designed to seal correctly the first time, with no guesswork
• Peace of mind knowing the part matches your system’s exact needs

When you are maintaining a transmission that supports thousands of pounds of boat and gear, the smart move is sticking with a filter kit made for your exact setup.

FAQ

Q1: Which systems does the 879194241 Transmission Fluid Filter Kit fit?

It fits Hurth 630 and 800 down-angle and v-drive MerCruiser transmissions.

Q2: What makes this different from aftermarket filters?

OEM filters match Mercury’s filtration standards, flow requirements, and sealing surfaces with far greater accuracy.

Q3: How do I know if this is the correct kit for my transmission?

Check your transmission model plate or your MerCruiser service manual—Hurth 630 or 800 models will use this kit.

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

Yes. As long as the transmission model matches, it performs the same in any environment.

Q5: Is installation easy for most boat owners?

Most boaters comfortable with routine maintenance can install it easily using basic tools.