Features:

  • Clear funnel allows a quick visual check of the coolant from across the shop. Comes with a lid to keep contaminants out as well as store the caps and adapters.
  • Eliminates trapped air Pockets which usually cause erratic cooling system and heater performance.
  • It controls the proper amount of coolant entering system and enables unattended Filling of the cooling system.
  • The funnel eliminates squeaky belts caused by coolant overflow and protects the . Straight extension and two 45 degree elbows for angled and hard-to-reach applications.
  • Five different colored radiator adapters and five caps to fit most cars, pickups, trucks, and many farm tractors.
My 350z has a closed coolant system not like my older GM vehicles where just leaving the radiator ...

My 350z has a closed coolant system not like my older GM vehicles where just leaving the radiator cap open would burp the air out of the cooling system. My car would overheat and I didn't know why until someone told me that I needed to buy this to completely remove the air out of the coolant system. How to do it: From all my reading the best way to tackle this issue is to attach the funnel to your radiator cap opening while cold and fill the funnel about 1/4 up so when system burps fluid falls into they system rather than more air. Let the car idle until normal operating temperature also have your heater set to full hot to allow the fluid in the heater core to flow through also. Mainly look at your needle on the gauge and once its about 1/4 of the way up or if you have a gauge with numbers and it reaches 160 to 180 you should be good. At this point the vehicles thermostat will open and start allowing the hotter coolant to start flowing into the radiator and the cooler fluid should start running into the engine block. Bubbles should start coming out of the funnel this is the air that was trapped in the system coming out. Add coolant to the funnel to keep it at the 1/4 mark so air can't get back into the system. Also if you have an RPM gauge you can step on the gas pedal and hold the RPM's at 3000 for 10 seconds and then release for 10 seconds, do this 3 times. Then let the car idle until you don't see to many bubbles coming out and shut down the car. This should take no longer than 30 minutes then shut down the car. Leave the funnel there for as the car cools they system will still draw fluid from the funnel during cooling. Check your coolant overflow tank and fill it to the full hot line. Once car is cooled down follow the instructions on how to remove the funnel and close your radiator, by this point 95-100% of the air is out of the system. Now for the 1st few days after doing this check the radiator level every morning and if its down top it off. Also for the next week you want to keep an eye on the over flow tank because any air that is left which will be minimal will work its way out and draw fluid in from the overflow tank and if it gets empty it will start drawing air in again and we don't want that. Once you see the levels in the overflow tank staying steady between full hot and full cold you should be good to go. Good luck and always be careful when working with the coolant system to not burn yourself or anyone around your project.

Makes Coolant changes a breeze!

All accessories are self-contained inside the funnel for easy storage. The instructions and illustrations could be better, but it's enough to figure out how to use. Lucky I stumbled across this product. I'll never do another fluid change without one. I got a little concerned once the engine started warming up completely and the coolant was really hot. But the thick plastic funnel didn't give and worked like a champ! Still recommend burping on an incline, if possible to help get the air out of the system.

Lisle 24680 Fits All; Cures Dangerous Air Bubble Overheating

2003 Honda Civic 1.7 blew coolant out overflow tank lid when Hot, then Collapsed both Rad Hoses after Cooldown - probably close to warping head & blowing head gasket! Hadn't bled ALL air after changing timing belt & water pump. Nearly impossible without 24680 due to Rad Cap BELOW top of Thermostat Housing, and no more housing-top bleeder screw on this 7th Gen Civic. This big funnel holds fluid FAR above radiator, yet with Zero Mess. Fill it above its taper to assure it can't empty & siphon more air back into system. Set to high heat, turn fan on to at least low, rev 2-3000 rpm every few min to push bubbles out, while idling for 30-40 min (or longer if bubbles continue). May want to park w radiator uphill, or raise front end slightly on jackstands, ramps or drive-on wood blocks for tough no-bleeder cars like most newer Hondas. Also check that Rad Fan is Cycling On, while Burping. (My rad fan had recently fried - which made Overheat & Overflow Worse when Parked with Zero (driven) Wind Speed in Texas Summer. Amazon has rad fans too - great Honda / Denso for $55; or $65 in Parts Store for also trustworthy Dorman, minus a web coupon I used. ) Be certain to buy this newer 24680 if you also have a Honda. Its expanded attachments DO include the Small C Adapter and pass-thru Rad Cap that fits all my 1995 & 2003 Civics plus 2006 Accord, and even some (GM?) Screw-on pass-thru Rad Cap & Adapter. Large A Standard Cap adapter looks like 70's Detroit size and medium B adapter fits in between. Thoughtfully designed like all Lisle. Ziploc bag included to keep adapters together. Plunger (like syringe) fits tightly in bottom neck & prevents ANY loss at removal (if you squeeze top hose while inserting plunger as they instruct, THEN remove friction-fit Funnel from Cap / Adapter. All parts store inside funnel, under high-grade rubber snap-on lid. Lid can keep bugs & dirt out of new coolant if loosely placed on top during use. Lid even has tab with hole for flat hanging storage of whole set against pegboard hook, nail, etc. Prime 2-Day delivery was also flawless, as usual.

A must have for filling an automotive cooling system

A must have for filling an automotive cooling system. To fill the cooling system I've always had luck with the following procedure for vehicles without a surge tank. After repair, fill cooling system using funnel and attachments, leave funnel filled 1/4 way with coolant. Massage air from upper radiator hose by hand. Start engine and maintain 1/4 coolant level in funnel After vehicle warms to operating temperature make sure no large bubbles are purging from the coolant, massage upper radiator hose to verify no air is in the system Shut off engine and allow engine to cool to ambient temperature, be sure to keep coolant topped off as the coolant contracts back into the radiator. After the engine has cooled to ambient temperature remove funnel and install radiator cap. This will remove the most amount of air from the cooling system without the use of a pressure bleeder.

Such a FANTASTIC Products, saves so much time.

This tool lets start off is FANTASTIC. No other way to put it. It makes my job so much easier to bleed out a cooling system and makes filling up a cooling system way easier. I love how there isn't a mess and makes quick work of it. The reason i purchased this is because i work with a variety of vehicles and Lisle recently came out with a the VW adapter which makes my job EVEN easier and not having to jimmy a way to do it. I am not going to list every adapter because it's hear on Amazon but let me tell you the new updated GM and VW adapter makes it much easier. It's sometimes difficult to find the "right" adapter for the vehicle but it's not overly a big deal as you end of figuring out what color fits with experience and time with the tool. I really like the fluid stopper where you plug it in the hole and remove it to fill the jug of coolant with no mess. It's a very sophisticated way of doing it but makes it very easy, it also comes with a cap to cover the funnel and also love how deep it is because you rev the engine to bleed out excess air and not have it go everywhere and then clean up a big mess afterwards. I'll tell you right now, if you do not own this already you should. It such a fantastic tool to have around the shop because it's just so easy to set up. I wish i knew about this sooner than i did but as long as i have it now that's all that matters. Even if you are not in professional setting i still would recommend you purchase this because i'll save time and money from having a mechanic do it for you. I wouldn't hesitate to purchase this because i think it was ONE of the worthwhile investments despite who tells you that it's not because they are wrong. Just such a fantastic product, i got to tone it down here i am getting to excited about this!

Excellent DIY tool for coolant flushing various vehicles

Just used this to do a full flush in my 1999 4Runner. tl;dr version: an excellent product that makes the job much easier. Took the advice of Timmy the Toolman (look him up on youtube) and got one of these for the full flush and coolant replacement I completed today. Use of the product is straightforward: find the base that fits your radiator inlet, secure that with the open-top cap that fits your radiator's bayonet or screw mount, then fit the reservoir onto the nozzle for spill-free filling and a few tricks as well. What I like about this: * It's spill-free -- with some care, you have a couple drips here and there, but no disasters or burps that send coolant everywhere. * It integrates a large funnel and can hold around a gallon * It has a lid, though this is the one source of dissat for me: the lid fits really tightly (as designed, I'm sure) but because it does, it's tempting to not squeeze it on fully (bad move, detailed later). The lid also lacks the option to deploy the stopper without removing the lid, which means you will likely experience splashing. Some unexpected benefits: * The nozzle and funnel is toleranced well-enough to fit so firmly that you can rock the vehicle a bit to burp it a bit, and even a full reservoir won't tip over * The funnel makes it easy to see your coolant, to know when to turn the vehicle off to perform a refill (or signal your distracted helper to do this) * Because the funnel is physically above the radiator and engine, it largely self-burps for you * One of the coolest things to watch was the engine burping once the thermostat opened up. The initial purge had completed at moderate engine temps, and from the driver's seat I was watching the temperature rise on my ScanGauge and when the temp reached the appropriate threshold, I saw new bubbles exhausting into the funnel. This serves to eliminate all guesswork concerning not only coolant temp but also to provide visual feedback that the purge has occurred in both halves (radiator, engine). Why use this instead of hand-pouring? It minimizes or eliminates over-pour and spills. It lets you do more work by yourself and it provides indications of various events (e.g. completed burping / air purge). You also don't have to just stand there in front of your radiator pouring slowly and waiting for the level to go down, or wondering just how much you've put in. Any downsides? The one I received is not graduated. Not a big deal, but that would have been nice. Also, as noted above, the lid fits the funnel very tightly. While this is desirable in most respects, it also got me feeling lazy that I could partially click it in place and that would be sufficient; it's not, and burps splash coolant all over despite the lid being set in place but ajar. I found myself wishing the lid were threaded. Also, in conjunction with this observation, the plunger that you use to plug or unplug the nozzle, is only operable with the lid fully off. If the plunger stem were tightly fit to a gasketed hole in the center of the lid, then you could raise and lower it as needed, with little to no splashing.

A great idea and a pleasure to use

This is a funnel with a set of adapters that create a water-tight fit to the radiator filler neck. During cooling system bleeding, the funnel serves as a reservoir for additional coolant that drains into the radiator as trapped air escapes. After bleeding, the neck of the funnel can be plugged using the supplied stopper. This allows unused coolant to be transferred back into its original container. All of the included accessories fit inside of the funnel and can be stored there when the funnel is not in use. A snap-on lid keeps everything in place. The product is very well thought out. I used this without problems on a 1993 Acura Integra. There are a number of 1-star reviews here by people who found that none of the included adapters worked with their car. Don't let these deter you from purchasing the product. Anyone with a modicum of ingenuity and mechanical aptitude should be able to fabricate a custom adapter from a spare radiator cap and miscellaneous parts purchased from the plumbing department of Home Depot!

Not just for convenience!

This fit my '03 Wrangler TJ with no leakage and was incredibly helpful in burping the system of air (which the 4.0L engine is notoriously bad about). Plenty of videos online showed just pulling the cap and letting the coolant burp all over the engine bay, but that wastes glycol and makes a mess. With this I topped off the radiator plus about 1/3 of the funnel (see photo), fired up the jeep and let it idle with the heater on max while squeezing hoses. Once I could squeeze every hose without seeing bubbles I revved it up to ~2000 RPM in neutral, let it idle for another 20 minutes, then shut the engine off and let it cool overnight. I came back the next morning and plugged the funnel with the included t-handle "wand", then transferred the coolant left in the funnel into the overflow bottle and capped the radiator. Zero mess. Definitely makes the job easier and cleaner, but the reason I give it 5 stars is because after using it I am sure there are zero air bubbles lingering in my cooling system.

Works as advertised

I bought this to bleed the air from the coolant system on a 2000 Subaru Outback which has a notoriously hard system to bleed. So much so that the previous owner cut the guts out of the thermostat... Anyways, I put a new thermostat in after watching several YouTube videos and decided to order this setup since it was a couple of bucks cheaper but looked identical to the kit recommended (except for the colors). Initially, I thought the "C" adapter was the correct size (C cap = C adapter right?). This proved to leak, it was loose. On closer inspection I noticed that the "B" adapter both fit the fluid hole of the radiator better, and, also has a taller boss for the adapter cap to press against keeping the seal tight against the fluid hole. My final setup for this vehicle ended up being: C adapter cap, B adapter, No extension - just the funnel. Worked like a champ. I've made up by own cobbled together funnels in the past but this one is the least trouble I've ever had. A great idea.

A Must Have for Coolant Changes!!

I like everything about this product. I performed a coolant flush on my Tacoma last weekend and used this product for the first time. It’s worth every penny! It saves time, limits mess, and allows for more effective coolant flushes by helping to reduce how much air gets into the system. It’s very easy to use and has simple instructions. The only issue I had was that the radiator cap fitting was not fully sealed, so I had a steady stream of air bubbles that initially gave me a mild worry that I had a gasket leak elsewhere in the system. Once I removed/replaced the funnel and reset the cap fitting, it worked like a dream. Seriously, save yourself time and aggravation and buy this product. Having a reservoir of coolant (or distilled water for flushes) makes things so much easier while you heat up the system and wait for the thermostat to open.

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