

🛠️ Keep your boat engine fresh, clean, and ready to conquer the waves!
The Shoreline Marine Motor Flusher is a durable, dual-flow accessory designed for easy, tool-free connection to any standard garden hose. Compatible with most inboard and outboard engines, it efficiently flushes away corrosive salt, silt, and grime to extend engine life, supports winterizing, and enables engine tuning out of water—making it an essential tool for every serious boater.















| ASIN | B004LR9SDI |
| Best Sellers Rank | #6,000 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Boat Engine Motor Flushers |
| Brand | Shoreline Marine |
| Brand Name | Shoreline Marine |
| Color | Multi |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,902) |
| Date First Available | February 1, 2011 |
| Engine Type | Internal Combustion Engine |
| Fuel Type | Gasoline |
| Global Trade Identification Number | 00013893522078 |
| Included Components | Dual Flow Feed Rubber Motor Flusher |
| Item Dimensions LxWxH | 5 x 3.25 x 14.75 inches |
| Item Package Dimensions L x W x H | 14.41 x 5.35 x 3.27 inches |
| Item Weight | 1 Pounds |
| Manufacturer | Shoreline Marine |
| Material | Blend |
| Model Name | SL52207 |
| Model Year | 2019 |
| Mounting Type | Flush |
| Number of Items | 1 |
| Operation Mode | Manual |
| Package Weight | 0.61 Kilograms |
| Part Number | SL52207 |
| Product Dimensions | 5"D x 3.25"W x 14.75"H |
| Recommended Uses For Product | For Inflatable Boats |
| Size | One Size |
| Style | Dual Flow |
| Suggested Users | unisex-adult |
| UPC | 013893522078 796793898817 |
| Warranty Description | Manufacturer warranty |
D**Y
Works Great. Worth the Money
Works great. Good quality. Very pleased. Worth the money.
K**4
Works as should
Worked perfect for my boat, fit nice and snug, leaked a little but that was expected
R**R
Secure fit and works great!
Works perfectly! I have a Yamaha 90 it works awesome.
G**W
Best value!
Higher quality at a better price than many other options on Amazon. Yes it has a plastic hose fitting but I was unable to find a metal option anywhere. Im very happy with the fit and function.
S**H
Gets the Job Done
I picked up the Shoreline Marine Universal Motor Muffs for flushing my 2-stroke 40hp outboard after saltwater runs, and honestly, they work just fine for what they are. Installation is quick—just clamp them over the water inlets, hook up the hose, and you’re good to go. I like how they snug up pretty well and stay in place if you center them right. Water flow was steady, and my motor started pulling water almost immediately. No leaks or sputtering—just smooth flushing. I’ve used them maybe a dozen times now, and they still look decent with no cracks in the rubber or weak springs. The only knock I’d give them is they feel a bit lightweight. I wouldn’t expect them to hold up to years of hard use or fit every engine perfectly—if you’ve got a bigger or oddly-shaped lower unit, double-check the size. But for your average outboard, this is a solid, affordable tool that gets the job done. If you’re a weekend boater or doing occasional flushes, I’d definitely recommend these. Just don’t expect high-end durability—they’re basic, and they work.
M**U
Excelente y super bueno
D**D
good quality
Perfect just what I needed and on time
K**.
Could be improved
Second pair of these. Plastic 90 degree fitting going from the tubing in the muffs themselves breaks easily. Replaced the first one with a metal 90 to fix it. Second pair broke in same spot. OK for someone who does not need them a lot, but I use mine almost everyday for 9 months a year
A**S
Shocking muffs. They just do not work. The rubber pads just do not seal!! The water goes everywhere except into the engine. I missed the return, so £20 down the drain. Read the reviews .........enough said. DO NOT BUY THESE!!!!!!. Man, i hate being ripped off!!!!!!! You can get good advice on any outboard forum. Everyone on them advices not to buy square/ rectangular muffs and to go for circular ones. Wish i'd seen that sooner.........
G**L
Very good buy. Very good quality and work as they should. Much easier to run tune and adjust motor out of the water.
D**T
Excellent quality
A**I
Recommended
J**B
Works really great
Trustpilot
3 weeks ago
3 days ago