Moeller Universal Round Cup Motor Flusher 099076-00, for Lower Units with Side Water Inlets

The Moeller Universal Round Cup Motor Flusher (part number 099076-00) is a round-cup ear-muff style flusher designed to seal over the water inlets on the side of an outboard or sterndrive lower unit, letting you run fresh water through the engine's cooling system without launching the boat. It requires no tools to install and is straightforward to use: position the round cups over the side water inlets, connect a garden hose, and turn on the water before starting the engine on a flush stand or with the lower unit secured. This makes it a practical way to rinse out salt, sand, and debris after every outing, helping protect the water pump and cooling passages from corrosion and buildup over time.

The flusher is built for use on all lower units that have side water inlets. It is not recommended for use with diesel engines. The cups and body are constructed of black plastic, offering a lightweight and durable design suited to routine dockside or garage use.

Specifications

• Brand: Moeller
• Manufacturer Part Number: 099076-00
• Product Category: Motor Flushers
• Cup Style: Round Cup
• Size: Universal, Round Cup
• Color: Black
• Material: Plastic
• Country of Origin: Taiwan
• Weight: 0.6 pounds
• UPC: 739729076002
• Diesel Engine Use: Not recommended
• Installation: No tools required

Fitment

• For use on all lower units with side water inlets

Frequently Asked Questions

What lower units does the Moeller 099076-00 motor flusher fit? The Moeller Universal Round Cup Motor Flusher, part number 099076-00, is designed for use on all lower units that have side water inlets.

Can I use this flusher on a diesel engine? No, the Moeller 099076-00 round cup motor flusher is not recommended for use with diesel engines.

Do I need any tools to install the flusher? No tools are required to use the Moeller 099076-00 motor flusher; it is designed for simple, tool-free setup.

What is the flusher made of? The Moeller 099076-00 motor flusher is made of black plastic.

How much does the Moeller 099076-00 motor flusher weigh? It weighs 0.6 pounds.

How is this different from the rectangular cup version? Moeller also makes a rectangular cup motor flusher, part number 099077-00, which is designed to be ideal in low-pressure conditions often found in marinas and is intended for use on lower units with side water inlets, including Volvo SX; the 099076-00 round cup version is a separate part with a different cup shape.

Where does the water connect on the 099076-00 motor flusher? The round cups of the 099076-00 flusher seal over the lower unit's side water inlets, and a garden hose connects to the flusher to supply water to the engine's cooling system.

Is the Moeller 099076-00 flusher easy to use for routine flushing? Yes, the 099076-00 is designed to be easy to use with no tools required, making it suitable for routine flushing after each outing.

Where is the Moeller 099076-00 motor flusher manufactured? Its country of origin is Taiwan.

What is the UPC for the Moeller 099076-00 motor flusher? The UPC for this product is 739729076002.

Does this flusher work on outboards and sterndrives with side inlets? Yes, the 099076-00 round cup motor flusher is built for use on all lower units with side water inlets, whether outboard or sterndrive.

Is the Moeller 099076-00 flusher genuine Moeller equipment? Yes, 099076-00 is the genuine Moeller Marine part number for this Universal Round Cup Motor Flusher.