Generac 6485 Scheduled Maintenance Kit for 20kW and 22kW Standby Generators with 999cc Engine Black

Maintenance parts to service generac that are well priced

I decided to do this myself for the first time. I have a Generac Guardian Series 22KW 999 cc Engine, Model No. GOO70422. So 7042 in the list below. If the first 4 numbers of your Generator's model number begins with: 6055, 6098, 6103, 6244, 6250, 6258, 6551, 6279, 7034,7035,7036, 7037, 7038, 7039, 7040, 7041, 7042, 7043, 7045, 7048, 7049, 7077, 7078, 7141, 7142, 7145, 7146, 7163, 7173, 7174, 7175, 7176, 7177, 7178, 7189, 7209, 7210, 7218, 7219, 7291 then this is the right kit for you! This kit consists of: 1 Oil Filter part no.: 070185E 1 Air Filter part no.: OJ8478 2 Spark Plugs part no.: RC12YC (which is the Champion equivalent of Generac part no.: OGO767A) I recommend doing the Spark Plugs and Air Filter before you do the oil change since the motor doesn’t need to be hot for that part of the job and is more comfortable to work on cool. Especially in the Summer! Spark Plugs: The Champion RC12YC spark plugs come pre-gapped from the factory at .38 so you’ll need to widen the gap slightly to get it to .40 as recommended by Generac. If you are using a ramp style plug gap gauge you will want the center of the electrode to be centered on the .40 line on the gauge. You’ll need a 5/8 Spark Plug socket and a Torque Wrench. Plugs should be torqued to 25 Newton Meters. Note: I needed only the wrench and socket to remove the plugs. I did not need any flexible extensions as some did. Flexible Extensions can cause the Torque wrench to get inaccurate readings so I would not recommend using one. Air Filter: The Air Filter housing has one clip that flips up from underneath the front lip. There are two tabs on the backside that stick through two square shaped openings on the back and you’ll need to pull backwards on the housing until they pop through the square shaped openings, thus releasing the housing. The rubber hose simply slips off the hard plastic connector it is connected to. Oil Change: Run the motor (push the “manual” button) for about 5 minutes or so until warm and then push “Stop” to shut it down. Unscrew the cap from the flexible drain tube, and drain the oil into a container that you can later take to the auto parts store for recycling. I used a disposable Tupperware container and then transferred the dirty oil to an empty Orange Juice bottle with a screw cap. I put the old oil Filter in a ziplock baggie. Next, replace the Oil Filter. This is the messiest part of the job. I highly recommend unscrewing it by hand with several layers of paper towels under the filter and surrounding the entire filter itself as you unscrew it (lefty loosey). Put some clean oil on the rubber gasket of the new one and hand tighten until gasket touches and then tighten an additional 3/4 turn. Add 1.9 quarts of oil. Note: .9 quarts will leave approximately 3.2 ounces of oil in the bottle (Mobil One Oil has ounce markings right on the bottle). The oil dipstick has 2 holes in it. The oil level should be just above the upper hole in the dipstick (the oil is difficult to see but If you hold the dipstick at a slight angle to the light it’s easier). When full, replace the drain hose cap and put it back in the holder. Manually start the Generator and check for leaks. Lastly put the Generator back into “Auto” mode et Voila! You’re done for another 2 years! Note: You really only HAVE to change the Plugs and Air Filter every 4 years (they are schedule B items) but it’s so cheap and easy to do I do it every two years along with the other Schedule A items just for the sake of overkill. I enjoy overkill in case you haven’t noticed. 😉☝️ This job was MUCH easier than I expected and in my case it saved me $350.00 (I live in California) and the hassle of having to be home to meet a Technician. Take your time and enjoy the process. There’s no better feeling than doing something for yourself and it’s nice to save a few bucks too! Good luck! 😎

A perfect fit. Job took an hour and saved me $250.

Perfect kit since I had oil from the previous owners. Changed everything myself for the first time after watching a Youtube video. Rear spark plug a little difficult to get to.

oil filter says Genuine Generac, but the Air Filter says nothing , no writing stampings nothing. Kind of makes me wonder.

Fits perfectly my 20kW Generac. You just need to buy full synthetic 5W-20 oil. The little paper funnel works surprisingly well. Don't forget to adjust the spark plugs gap to correct 0.040". Save ton of money by doing the maintenance yourself. Good luck!

Authentic Maintenance Kit. Not a bad price.

Great Item

Good kit with all the right parts. Easy to install.

We had our generator installed in December 2022 which is a late install for Canadian (Quebec) standards however the shortage of labour and all the regular pandemic excuses were the culprit. The one year cycle came around quicker than anticipated and our generator was showing a green/yellow light (December 2023) instead of the solid green. The computer no doubt triggered the 1 year, 1st maintenance cycle which I absolutely wanted to get done before the harsh Winter settled in. I called the authorized Generac dealer for the Montreal area and the representative told me that it was a 4 month wait and the pricing was 4 hours minimum at $150 + taxes per hour + kilometers charged to and from their shop (this worked out to about about $140 + taxes in my case). In total I was looking at $740 + taxes without any other "surprises". Skeptical about the extremely low cost of this package, I actually called Generac and confirmed all the part numbers to the representative... "all good" she said, they match everything needed for our generator. Amazon Prime delivered this the next day and I performed the required maintenance within about 40 minutes which is way longer than what it should have taken simply because I completely familiarized myself with the generator and the onboard electronic menu. Otherwise, anyone should be able to get this done in about 25 minutes. The longest part is waiting for all of the oil to drain from the narrow passage drain tube. Just saved ourselves about $700 and avoided some indifferent and careless technician showing up to try and convince me that it was worth $750.

Works perfectly for my generac standby generator

Produits de qualité d'origine 👍

Parts if bought separately were cheaper at my local Canadian Tire. But this was convenient. Consider dropping price a bit and having an option without spark plugs. You dont need to change plugs every year for generator.