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Prestone AF-KIT Flush 'N Fill Kit

4.2 out of 5 stars 113 customer reviews
| 11 answered questions

Was: $4.85
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  • Professionally back-flushes cooling systems of most cars and light trucks
  • Allows you to flush the complete cooling system, not just the radiator, in one easy process
  • Removes rust and dirty coolant that that can lead to a clogged radiator
  • Prevents potential overheating and engine damage
  • Easily installs antifreeze/coolant in minutes
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Frequently Bought Together

  • Prestone AF-KIT Flush 'N Fill Kit
  • +
  • Prestone AS105 Radiator Flush and Cleaner - 22 oz.
Total price: $11.00
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Product Information

Size:Pack of 1

Technical Details

Brand Prestone
Item Weight 4 ounces
Product Dimensions 9 x 9 x 2 inches
Item model number AF-KIT
Manufacturer Part Number AF-KIT

Additional Information

ASIN B000CCFY5W
Customer Reviews
4.2 out of 5 stars 113 customer reviews

4.2 out of 5 stars
Best Sellers Rank #4,790 in Automotive (See top 100)
#2 in Automotive > Oils & Fluids > Additives > Cooling System
Shipping Weight 5.6 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available August 17, 2005

Warranty & Support

Warranty, Parts:Parts

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Product Description

Size: Pack of 1

Prestone Flush 'N Fill Kit professionally back-flushes cooling systems of most cars and light trucks on the road today. Easily installs anti-freeze/coolant in minutes. Rust and dirty coolant that circulates in your car’s cooling system can lead to a clogged radiator, resulting in overheating and engine damage. Draining the radiator alone does not sufficiently remove old coolant, as the radiator may contain 40 percent or less of the coolant. The Prestone Flush 'N Fill Kit allows you to professionally flush the complete cooling system, not just the radiator, in one easy process.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: Pack of 1
I bought this at my local walmart & just used it today. It takes less than 10 minutes to fully hook up, and works great! With the engine running, the old coolant is fully expelled in less than 5 minutes.

Steps :

Buy
Open package
Install 2 parts on the car (the "T" & the overflow adapter)
Hook a hose up & turn it on
Start the car
Turn heat on max & fan on high
Let the car run for 5 minutes (or until clear water is coming out of the radiator)
Turn car off
Turn hose off
Remove hose from the "T"
Drain radiator
Fill radiator with HALF of the total coolant capacity needed with 100% strength coolant (NOT 50/50 mix)
Fill radiator with water until fluid begins to come out of the "T"
Cap the "T"
Start the car
Turn heat on max & fan on high
Fill the radiator as needed with water until no more bubbles appear
Turn off car
Fill radiator reservoir tank halfway with a 50/50 mix of coolant & water
Install radiator cap

DONE!

:)
19 Comments 97 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Pack of 1
This is a Great item. I have had this installed on my 1986 GM V8 for years. Iron engine block with Aluminum heads. Once you figure out where to install the T into the cooling system. There are three sizes for different tubes. There are videos on U Tube but they don't seem to tell all. Find the hose from the engine to the valve that controls hot water flow to the Heater Core and your there. When you move the control in your car's climate control from cold to hot the valve will change positions. At least on my GM car. Hook up your garden hose to the back-flow preventer (The yellow and black thing next to the yellow tube in the picture), then connect that to the TEE. Press one end of that L shaped yellow tube (Splash Deflector Tube), right there in the picture, into your radiator. After you remove the cap please. Then blast away. Your old dirty water will come out the top of the radiator. Installing the Tee and removing the radiator cap is all you have to do to your car/bus/truck/ etc. Yes, do read the instructions.
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Size: Pack of 1 Verified Purchase
I wish I had bought one of these years ago. This is a big time saver compared to draining and refilling the radiator several times to fully flush out the system (and running the car, and letting it cool, in between each fill).
You cut one of the heater lines and put in the Tee that you can connect a hose to. It comes with 3 Tees to fit different hoses. I even comes with the hose clamps.
You are supposed to cap the Tee, and leave it on the line when you finish, but it is made of plastic, so I don't trust it completely for a permanent installation. Instead, I put in a short piece of standard household copper pipe to connect the two ends of the cut hose , and use the same hose clamps
The large yellow piece in the picture is a nice adder. It snaps into the radiator cap opening and directs the flushed water out and away from the car. You can attached a hose of tube to the end if you want to collect and "properly dispose of" the flushed coolant if you feel so inclined.
4 Comments 19 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Pack of 1 Verified Purchase
Bought 2 of these so I can backward and forward flush my heater core. Also bought Prestone AS105 Radiator Flush and Cleaner - 22 oz to use with them. My vehicle was bought with 250k already on it and the previous owner never cleaned the radiator, so it needed a good flushing/cleaning. Took 2 flushes with water to clear out the blockages and then the chemical one to get it all dissolved and gone.

Edit: I wanted to add that this stuff worked so well it helped me find a bad head gasket. After I finished the flush I noticed a day or so later that my oil was milky and had it checked. The head gasket is bad and the flush kit helped me find it, and it's far better to find it sooner rather than later.
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Size: Pack of 1 Verified Purchase
After installing the proper TEE to your heater/radiator hose, you will have a permanent back-flush system for your vehicle. Once installed, you attach your (garden) hose to the TEE connector and run clear water to flush your entire cooling system throughout the engine and radiator. I recommend using at least one gallon of distilled water for a final run-through the engine to flush any trace amounts of minerals which are in most water supplies.

After you finish flushing system, remove garden hose from TEE and replace with provided cap. Close any open valves, replace your reservoir hose/line (if needed) and fill your system with (vehicle's specified) proper coolant mixture.

This is a pretty easy flush kit for the DIYer...And you're all ready for the next flush you may do again sometime.
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Size: Pack of 1
I installed one of these kits on my '92 Toyota Pickup about 8 years ago. It makes flushing the coolant system a breeze. I highly recommend it to anyone thinking about buying it. Don't worry about the plastic T breaking, they hold up just fine.
1 Comment 14 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Pack of 1 Verified Purchase
This kit is a really good to have installed on your engines coolant system.A through clean out of your system,and you'll save a fortune not taking it to a shop.
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Size: Pack of 1 Verified Purchase
The tee is strong in that it can withstand boiling water inside cooling system. The run off spout has no way to stay in place which was not really a big deal. Also the back-flow/ hose adapter did not fit snugly and sprayed water everywhere. You should probably flush with purified water a couple of times after using to get minerals out of cooling system. For the price it is worth buying.
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