Mercury – Quicksilver Sterndrive Exhaust Y-Pipe Seal | Exhaust System Component | Marine Rubber | 41802

Overview

If your MerCruiser has started to sound a little louder than usual or you’ve noticed water creeping where it shouldn’t, this small piece might be the reason. The Mercury Marine 41802 Quicksilver Exhaust Y-Pipe Seal keeps things tight between the Y-pipe and the transom assembly on MerCruiser R, MR, Alpha, and Bravo drives. It’s made from a durable marine-grade rubber that holds up to exhaust heat, pressure, and vibration. Once installed, it keeps exhaust gases flowing out the back, not into your bilge — and that means your engine runs quieter and stays protected.

Key Features

• Job: Seals the joint between the Y-pipe and transom to stop leaks.
• Material: Heat-resistant rubber that won’t dry out or lose shape.
• Design: Built to factory Mercury specs for an exact fit.
• Performance: Keeps exhaust flow smooth and prevents backwash into the drive.
• Durability: Handles heat, pressure, and steering movement without breaking down.
• Fit: Works with MerCruiser R, MR, Alpha, and Bravo sterndrives.

Engine & Boat Compatibility

• MerCruiser R, MR, Alpha, and Bravo sterndrives.
• Found on cruisers, runabouts, and performance boats using MerCruiser power.
• Works in freshwater, saltwater, or mixed conditions.
• Installs easily using the same location and hardware as the original seal.

Performance & Real-World Benefits

This Y-pipe seal does more than just stop leaks — it keeps your entire exhaust system breathing properly. When the old seal hardens or cracks, exhaust gases can escape into the bilge or allow water back into the system. The 41802 seal prevents that, keeping everything running cool, quiet, and efficient.

Made from flexible marine rubber, it handles the constant expansion and vibration of the drive without deforming. Replace it during a drive service or when you pull the transom assembly, and you’ll avoid a lot of headaches later. A fresh seal means better exhaust flow and a cleaner, drier bilge.

Why Use Mercury OEM Parts

With something as critical as an exhaust seal, the right fit matters. The Quicksilver 41802 is a genuine Mercury Marine part, made to the exact size and shape of your original. Off-brand seals might look close, but if they don’t compress or align perfectly, they’ll leak — and leaks turn into corrosion and performance loss fast.

Mercury tests every OEM part for real-world heat, pressure, and water exposure. That means you’re getting a part that lasts and performs exactly the way your drive was designed to.

FAQ

Q1: What drives does this seal fit?
It’s made for MerCruiser R, MR, Alpha, and Bravo sterndrives.

Q2: What’s it made from?
It’s molded from marine-grade rubber that resists heat and pressure.

Q3: Why should I replace it?
Old seals can crack or flatten, allowing water or exhaust to leak. A new seal restores a tight connection.

Q4: Can it be used in saltwater?
Yes. The rubber compound is designed to withstand salt, heat, and constant moisture.

Q5: Why OEM instead of aftermarket?
OEM guarantees the proper shape and compression for a perfect, lasting seal.