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Best motor flushers - April 2026

Last Updated - April 2, 2026

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Seaworks

Seaworks Steel Dual Feed Muff Style Heavy Duty Steel Boat Motor Flusher | Use for Antifreeze Winterization or Common Water Flush | 5/8 Inch Standard Garden Hose Connection

Seaworks

$34.99

More Details
Main highlights
- Seaworks was born as a passion project by avid boater and fisherman. Your satisfaction is our priority and please contact us for any questions or concerns you might have!
- Seaworks Motor Flusher: Use our flusher for routine maintenance to flush out salt and mineral buildup. Also great for winterizing your engine with antifreeze.
- Fits most engine models: Compatible with most inboard and outboard engines including Mercury, Yamaha, Evinrude, Mercury, Yamaha, Johnson, Chrysler, Honda, Nissan, Suzuki as well as others.
- Easy to use: Just slip our flusher muffs over the lower unit intake, connect a garden hose to the standard 5/8 quick-connect valve, and flush your engine.
- Dual Flow and Steel Body: Our dual flow design allows for higher pressure and better cleaning power. Steel Body for additional durability and leak protection. Our motor flusher also comes with an adapter for other sized hoses.
$34.99
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Seaworks

Seaworks Steel Dual Feed Muff Style Heavy Duty Steel Boat Motor Flusher | Use for Antifreeze Winterization or Common Water Flush | 5/8 Inch Standard Garden Hose Connection

Seaworks

$34.99

More Details
Main highlights
- Seaworks was born as a passion project by avid boater and fisherman. Your satisfaction is our priority and please contact us for any questions or concerns you might have!
- Seaworks Motor Flusher: Use our flusher for routine maintenance to flush out salt and mineral buildup. Also great for winterizing your engine with antifreeze.
- Fits most engine models: Compatible with most inboard and outboard engines including Mercury, Yamaha, Evinrude, Mercury, Yamaha, Johnson, Chrysler, Honda, Nissan, Suzuki as well as others.
- Easy to use: Just slip our flusher muffs over the lower unit intake, connect a garden hose to the standard 5/8 quick-connect valve, and flush your engine.
- Dual Flow and Steel Body: Our dual flow design allows for higher pressure and better cleaning power. Steel Body for additional durability and leak protection. Our motor flusher also comes with an adapter for other sized hoses.
$34.99
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

SeaSense

SeaSense Dual Motor Flusher Dual Flow Motor Flusher Round,

SeaSense

$18.68

More Details
Main highlights
- No tools required
- Great for larger motors 50 HP & up
- For engines with side water inlets
- Flushes salt, silt, and sand out of the cooling system of the motor
- Extends your engine life
$18.68
4
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Seaworks

Seaworks Dual Feed Muff Style Boat Motor Flusher | Use for Antifreeze Winterization or Common Water Flush | 5/8 Inch Standard Garden Hose Connection

Seaworks

$27.99

More Details
Main highlights
- Seaworks was born as a passion project by avid boater and fisherman. Your satisfaction is our priority and please contact us for any questions or concerns you might have!
- Seaworks Motor Flusher: Use our flusher for routine maintenance to flush out salt and mineral buildup. Also great for winterizing your engine with antifreeze.
- Fits most engine models: Compatible with most inboard and outboard engines including Mercury, Yamaha, Evinrude, Mercury, Yamaha, Johnson, Chrysler, Honda, Nissan, Suzuki as well as others.
- Easy to use: Just slip our flusher muffs over the lower unit intake, connect a garden hose to the standard 5/8 quick-connect valve, and flush your engine.
- Dual Flow: Our dual flow design allows for higher pressure and better cleaning power. Our motor flusher also comes with an adapter for other sized hoses.
$27.99
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Seaworks

Seaworks Dual Feed Muff Style Boat Motor Flusher | Use for Antifreeze Winterization or Common Water Flush | 5/8 Inch Standard Garden Hose Connection

Seaworks

$24.99

More Details
Main highlights
- Seaworks was born as a passion project by avid boater and fisherman. Your satisfaction is our priority and please contact us for any questions or concerns you might have!
- Seaworks Motor Flusher: Use our flusher for routine maintenance to flush out salt and mineral buildup. Also great for winterizing your engine with antifreeze.
- Fits most engine models: Compatible with most inboard and outboard engines including Mercury, Yamaha, Evinrude, Mercury, Yamaha, Johnson, Chrysler, Honda, Nissan, Suzuki as well as others.
- Easy to use: Just slip our flusher muffs over the lower unit intake, connect a garden hose to the standard 5/8 quick-connect valve, and flush your engine.
- Dual Flow: Our dual flow design allows for higher pressure and better cleaning power. Our motor flusher also comes with an adapter for other sized hoses.
$24.99

Best motor flushers - April 2026

Seaworks Steel Dual Feed Muff Style Heavy Duty Steel Boat Motor Flusher | Use for Antifreeze Winterization or Common Water Flush | 5/8 Inch Standard Garden Hose Connection

Seaworks Steel Dual Feed Muff Style Heavy Duty Steel Boat Motor Flusher | Use for Antifreeze Winterization or Common Water Flush | 5/8 Inch Standard Garden Hose Connection

SeaSense Dual Motor Flusher Dual Flow Motor Flusher Round,

Seaworks Dual Feed Muff Style Boat Motor Flusher | Use for Antifreeze Winterization or Common Water Flush | 5/8 Inch Standard Garden Hose Connection

Seaworks Dual Feed Muff Style Boat Motor Flusher | Use for Antifreeze Winterization or Common Water Flush | 5/8 Inch Standard Garden Hose Connection

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