Ever had a mud dauber or other pesky insect ruin your weekend on the water because your tell-tale tube was clogged? You had to bring the boat to a mechanic because you thought your engine was not cooling?
If you answered YES, you’re not alone — and now, you don’t have to deal with that again.
Introducing the MUD DAUBER STOPPER™ – the small but powerful solution that prevents insects from clogging your outboard engine’s tell-tale tube. No more overheating surprises — just smooth sailing and peace of mind.
With the Mud Dauber Stopper, you’ll always know your engine is cooling properly — so your only focus is enjoying the open water.
FITS ALL OUTBOARD ENGINES
🛑 MUD DAUBER STOPPER™
Protect your tell-tale tube. Protect Your Engine.
✔ Blocks Insects & Debris
✔ Visual Engine Overheating Warning
✔ Easy On, Easy Off
✔ Fits Most Outboard Engines
No more clogged tell-tale tube from mud daubers, wasps, or spiders!
Keep your cooling system flowing freely — every trip, every time.
MADE IN USA | UV-RESISTANT | MARINE-GRADE MATERIAL COMES WITH "REMOVE BEFORE USE" TAG!
INSTALLATION:
1. Locate the tell-tale tube on your outboard engine.
2. Press the Mud Dauber Stopper snugly into the opening.
3. Remove before launching your boat.
⚠️ IMPORTANT:
Always remove the stopper before engine use. Not for use while the engine is running.
MATERIAL: Marine-grade plastics
FITS: Most standard outboard tell-tale tubes (check sizing guide)
CARE: Rinse after use. Store in a dry place
Comes with a special tool to clear out the tube.