00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Moeller
Moeller Universal Round Cup Motor Flusher #099076-00
$5.93
$6.98
Moeller 099076-00 Motor Flushers MOELLER ® MOTOR FLUSHER Quickly removes salt & mineral build-up with simple flush that slips over side water inlets on most IB & OB lower units. Installs in seconds using garden hose. 6203409: Round style. For lower units, no tools required. Normalized SKU: 09907600UPC Code: 739729076002
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seachoice
Seachoice Proflo Motor Flush Universal #18301
$8.26
$9.72
Seachoice 18301 Motor Flushers
Flush away sand, silt, and salt. Prevents clogging and corrosion. For use on most outboards and inboard/outboards with side water inlets.Normalized SKU: 18301UPC Code: 719249183015
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seachoice
Seachoice Heavy Duty Motor Flusher #18311
$21.89
$26.12
Seachoice 18311 Motor Flushers
Recommended for larger engines. Quickly flushes away salt, silt, alkali and sand. Extends engine life by preventing clogging and corrosion. 4 stainless steel hose clamps included.Normalized SKU: 18311UPC Code: 719249183114
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Moeller
Moeller Flush Muff Bulk #99076-00
$7.24
$8.52
Moeller 99076-00 Motor FlushersEasily flushes contaminates from lower unit cooling systems. Slips over side water inlets on most inboard and outboard lower units. Installs in seconds using a standard garden hose, no tools required. Rectangular cup model is ideal for low water pressure conditions, prevents leakage in high pressure flushing. Normalized SKU: 9907600UPC Code: 10039729076004
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seachoice
Seachoice Heavy-Duty Dual Feed Motor Flusher #18313
$20.29
$24.22
Seachoice 18313 Motor Flushers
Heavy-duty, high-impact plastic flusher. Recommended for larger engines.
Normalized SKU: 18313UPC Code: 719249183138
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seachoice
Seachoice Rectangular Motor Flusher #18321
$11.45
$13.67
Seachoice 18321 Motor Flushers
Flush away sand, silt, and salt. Prevents clogging and corrosion. For use with most outboards and inboard/outboards.Normalized SKU: 18321UPC Code: 719249183213
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Marpac
Marpac Motor Flusher #7-0576
$4.89
$9.78
Marpac 7-0576 Motor Flushers
Universal Motor Flusher - Round Cup
Fits most engines with side water inlets
Flushes away sand, silt, salt, and alkali
Check, tune, and flush your outboard or I/O anywhere on dry land
Installs easily without tools
Helps extend engine life
Normalized SKU: 70576UPC Code: 787766705768
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Reverso
Reverso OFS-Pro Engine Setup Fittings Kit #35-3955-01-04
$166.58
$211.57
Reverso 35-3955-01-04 Motor Flushers
OFS-PRO Engine Setup Fittings Kit
Normalized SKU: 3539550104
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seachoice
Seachoice Inboard Motor Flusher #18331
$28.63
$34.17
Seachoice 18331 Motor Flushers
Designed to flush sand, silt, and alkali from your inboard engine
Easily installs on raw water strainer for inboard engines without tools
Telescoping shaft ensures precise alignment, especially in hard-to-reach areas
Shaft length: 18-1/2" to 31"
Large diameter suction cup eliminates fall-off or blow-by while flushing
Normalized SKU: 18331UPC Code: 719249183312
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seachoice
Seachoice OMC Outboard Flush Kit #18401
$38.70
$46.19
Seachoice 18401 Motor Flushers
Fits all outboards flushing port. Easily snaps on, quickly flushes salt water from outboard. O-ring sealed. Slide valve stays on engine permanently. EASY installation! Kit contains: slide valve, quick connect, rubber washer.Normalized SKU: 18401UPC Code: 719249184012
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sea-Dog
Sea-Dog Motor Flush #521500-1
$11.58
$13.82
Sea-Dog 521500-1 Motor FlushersMotor Flush Ear Muff Outboard motor flushers quickly flush away salt, sand, minerals and contaminates from your lower unit cooling system extending the engine’s service life. Easy to use molded PVC cups deliver fresh water to flush the cooling system through side intakes on the lower unit. Simple garden hose connection, no tools required. Great for winterizing, tune-ups and other maintenance that requires running an outboard engine out of the water.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Normalized SKU: 5215001UPC Code: 035514521017
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Moeller
Moeller Flusher-Pro Square Metal Yoke #380160
$34.58
$41.27
Moeller 380160 Motor FlushersMoeller Flusher-Pro Square Metal Yoke #380160Normalized SKU: 380160UPC Code: 739729010815
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seasense
Seasense Motor Flusher Universal Dual Flow #50073750
$23.23
$27.73
Seasense 50073750 Motor FlushersProtect your investment by flushing the motor every time you use your boat. Motor flushers flush salt, silt and sand out of the cooling system of your motor. ,ul> No tools Required Easy to Use Extend your Engine Life For Engine with Side Water Inlets Great For Larger Motors 50 HP & up Seasense Motor Flusher Universal Dual Flow 50073750Normalized SKU: 50073750UPC Code: 737765737505
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seasense
Seasense In- Board Motor Flusher #50073761
$23.23
$27.73
Seasense 50073761 Motor FlushersPerfect for inboard engine flushing, or running an inboard engine out of the water for maintenance. Place plunger over flush port and extend handle until it supports it firmly against the hull. Adjusts from 15-1/2 in - 30 in No Tools Required, Installs in Seconds Telescoping Handle Provides Precise Alignment Flush away Sand, Silt, Salt or Mud with Ease Perform Engine Maintenance While Boat Is Out Of Water Large Cup for a Secure Fit and Prevents Water Blow-By Seasense In- Board Motor Flusher 50073761Normalized SKU: 50073761UPC Code: 737765737611
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seasense
Seasense Motor Flusher Large Rectangular #50073756
$15.33
$18.30
Seasense 50073756 Motor FlushersUniversal motor flusher allows the cooling system to be flushed out using a garden hose. Works on most outboards and inboard/outboards. Also a great way to test run your boat before heading for the water. Designed for larger outboards. Increases the Life of All Outboard Engines Cups Rotate for Easy Application Soft, Rubber Cups for Proper Circulation and also Prevents Scratching Seasense Motor Flusher, Large Rectangular 50073756Normalized SKU: 50073756UPC Code: 737765737567
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Seasense
Seasense Motor Flusher Universal #50073755
$9.36
$11.17
Seasense 50073755 Motor FlushersUniversal motor flusher allows the cooling system to be flushed out using a garden hose. Works on most outboards and inboard/outboards. Also a great way to test run your boat before heading for the water. Increases the Life of All Outboard Engines Cups Rotate for Easy Application Soft, Rubber Cups for Proper Circulation and also Prevents Scratching Seasense Motor Flusher Universal 50073755Normalized SKU: 50073755UPC Code: 737765737550
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Marpac
Marpac Motor Flusher Rectangle Cup #7-0574
$8.12
$9.69
Marpac 7-0574 Motor FlushersMarpac Motor Flusher Rectangle Cup #7-0574Normalized SKU: 70574
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Marpac
Marpac Motor Flusher Inboard #7-0579
$20.06
$23.94
Marpac 7-0579 Motor FlushersMarpac Motor Flusher Inboard #7-0579Normalized SKU: 70579UPC Code: 787766705799
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Marpac
Marpac Motor Flusher Dual Feed Rectangle Cup #7-0573
$19.51
$23.29
Marpac 7-0573 Motor FlushersMarpac Motor Flusher Dual Feed Rectangle Cup #7-0573Normalized SKU: 70573UPC Code: 787766705737
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Engine Flusher #18-8998-1
$14.85
$17.72
Sierra 18-8998-1 Motor Flushers
Flushing your outboard after every saltwater or brackish water outing is one of those habits that pays off big over time. The Sierra 18-8998-1 Engine Flusher makes it easy, using a pair of rectangular cups that clamp over the water intakes on the lower unit so you can run fresh water through the cooling system without ever putting the motor in a tank or backing the boat down the ramp again.
The rectangular cup design gives a better seal on larger lower units, and this flusher is rated to fit most outboard models 120 HP and up. Hook it up to a standard garden hose, start the motor, and let it run for a few minutes. That's really all there is to it. Simple maintenance that keeps salt, sand, and debris from building up inside the cooling passages and cutting the life of your engine short.
Cup style: Rectangular
Fits: Most outboard models 120 HP and up
Connects to a standard garden hose
Allows engine flushing without a flush tank or water source at the ramp
Sierra part number: 18-8998-1
Normalized SKU: 1889981UPC Code: 808282362058
Frequently Asked Questions
First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!
Yes, we offer FREE Shipping on most orders over $149 to US-48*.
Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.
- Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
- Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
- Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
- Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
- Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
- In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store
Below the price of the item, on the product page, there is a message indicating the availability of the product.
The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.
We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.
If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.
Free Shipping
On most orders $149+ to the continental 48 US states.Secure Shopping
Fast, secure checkout with a variety of payment methods.Shop with confidence
25+ years serving the marine industry.Support center
Need help? Contact us via live chat, phone, or email.