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Generac

Generac 5665 Maintenance Kit for 20kW, 999cc Engine - Keep Your Generator in Top Condition

  • Based on 531 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Sep 13
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Features

  • Complete Maintenance Kit: The Generac 5665 Maintenance Kit is specifically designed for 20kW home standby generators, providing all the necessary components for optimal maintenance
  • Optimum Performance: Regular tune-ups are essential for keeping your generator running at its best. This kit ensures your generator operates at peak performance when you need it most
  • Comprehensive Contents: The kit includes essential items such as an air filter, oil filter, oil funnel, spark plug, chamois, instruction manual, and a convenient reminder sticker
  • Compatibility: Designed for air-cooled standby generators with 999cc Generac OHVI engines, ensuring a perfect fit and proper maintenance for reliable operation
  • Reliable Power Solution: With this maintenance kit, you have all the necessary parts at hand for regular maintenance tasks, including air filter replacement, oil filter change, spark plug replacement, and more

Description

Scheduled maintenance is a necessity for all standby generators. The Air- Cooled Scheduled Maintenance Kits offer all the components necessary to perform a complete maintenance on Generac air-cooled generators. Maintenance is recommended at every 200 hours or 2 years. If running in a dusty environment, more frequent maintenance may be required.

Brand: Generac


Wattage: 20 KW


Fuel Type: Gasoline


Power Source: corded-electric


Recommended Uses For Product: Residential


Item Weight: 1.55 Pounds


Output Wattage: 20 Kilowatts


Special Feature: Portable


Included Components: Unit^Instruction Guide


Model Name: Generac 5665 Air Cooled Home Standby Generator Maintenance Kit, 20kW, 999cc Kit (For HSB models prior to 2013) See more


Brand: Generac


Wattage: 20 KW


Fuel Type: Gasoline


Power Source: corded-electric


Recommended Uses For Product: Residential


Item Weight: 1.55 Pounds


Output Wattage: 20 Kilowatts


Special Feature: Portable


Included Components: Unit^Instruction Guide


Model Name: Generac 5665 Air Cooled Home Standby Generator Maintenance Kit, 20kW, 999cc Kit (For HSB models prior to 2013)


Engine Type: 4 Stroke


Engine Displacement: 999 Cubic Centimeters


Runtime: 200 hours


Frequency: 60 Hz


Engine Power Maximum: 20 Kilowatts


Running Wattage: 20 Kilowatts


UPC: 696471056655


Manufacturer: Generac Power Systems Inc


Global Trade Identification Number: 55


Product Dimensions: 8 x 8 x 6 inches


Item Weight: 1.55 pounds


Department: Unisex Adult


Country of Origin: USA


Item model number: 5665


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews

    • Generac 20KW full house auto generator maint kits
We live in the middle of the "Hurricane Alley" Texas gulf coast and last year we bought and had installed a Generac 20KW totally automatic natural gas fired 999cc generator from Wired Electric, who did a nice job at a decent price. Part of the secret to anything mechanical lasting more than a couple of years is proper and regular maintenance. In the case of the Generac here, once a year you need to change air filter, oil filter, spark plugs and motor oil to keep your warranty current. Wired lets the homeowner do that if they wish so long as they document the maintenance and can prove they did, in deed do the scheduled work at the scheduled intervals and did it properly and correctly. I am a mechanicaly inclined guy so I opted to do that, according to the owners manual and precisley as instructed with genuine replacement parts. OK, so what does a "kit" consist of? Well, in the box there is a spin on replacement oil filter and a dandy paper funnel to put the oil in your motor, a little handy spark plug wrench and two Champion replacement plugs, an exact fit air filter and a drop cloth to help with any spills. I have seen guys charging 40 bucks or more per kit and when I found this provider offering the same for only 15 bucks a pop, I said "stock up". And I did just that. Exactly as described and exactly as the factory originals because it is factory original merchandise at an affordable rate. Oh yeah, our Wired technician, Joe told me to use a high quality 10/W/40 oil when changing it out. Takes 1.9 US quarts which includes oil filter capacity when changed every year. I selected Mobil fully synthetic "High Mileage" oil since this is an air cooled motor and who knows when it may be used for considerable days on end in the event of whatever perils lurk out there? I know my other Texas based reviewer says he does not recommend using synthetics in warm climates (Based on what???) I wanted to back up my recommendation to use synthetic oil in ANY air cooled motor with the following recommendation from aircooled.net's own tech talk forum "Since synthetic oil has better heat transfer qualities than dino oil, your internal engine temperatures will be lower. Things like bearings, especially, will not operate at as high of a temperature as a result. The wider range of temperatures that synthetic oil can withstand is well suited for the air-cooled VW engine. With head temperatures normally between 300-350 degrees, synthetic will not breakdown while lubricating the valve train components at the heads. The better lubricating properties of synthetic in general will lead to a longer engine life as well. On average, when synthetic oil is run in an air-cooled VW engine, head temperatures stay the same, but engine oil temps reduce by anywhere from 10 to 15 degrees. This is in identical engines that have all the correct cooling tin in place, and are not suffering from overheating to begin with. Important note: Do not run synthetic to fix a hot running engine. Find the real reason it's running hot, and fix it!" There you have it. Your Generac is also an AIR COOLED engine and is made of the same materials as a VW, Corvair or any other air cooled engine. This is THEIR recommendation, not mine. Go for it. ... show more
Reviewed in the United States on May 9, 2012 by Brett
    • Good product
Complete tune up kit. replacement all fit well
Reviewed in the United States on March 11, 2025 by John P.
    • only freceived the air filter no spark plugs or oil filter in package
I received the air filter only.There was no oil filter or spark plugs in the package when it arrived.
Reviewed in the United States on December 4, 2024 by Amazon Customer
    • Fits my GENERAC 20 kw just fine. Well at least two times it did. 3rd time was a screw up.
This is the only kit that I will purchased. Everything you ever need is included, the price is excellent. Wipe the slate clean, two orders were perfect. The third order had the wrong size air filter. I also see I’m not the only person with that problem. Do you not inspect what you’re sending out. There’s a problem that needs attention here!! Update: I reordered the kit again and received the correct filter this time. My faith has been somewhat restored. It’s always good to have a couple of kits in reserve, so I’ll order another just to see if I’ll get the correct one. The star rating has gone back up! ... show more
Reviewed in the United States on March 16, 2019 by G. Man
    • Works well for tune up
Right parts for a very good price.
Reviewed in the United States on December 5, 2024 by wolfric
    • Maintenance kit less oil
Everything I needed except for motor oil to complete scheduled maintenance. Genuine Generac parts
Reviewed in the United States on November 16, 2024 by Louisiana Customer
    • Complete set, buy this for a 20kw Generac
Complete set, really beats running around buying everything individually
Reviewed in the United States on October 10, 2024 by John R Federl
    • Great kit for my Generac Generator
Home Depot used to carry this kit and am glad that Amazon offers it. All you have to purchase along with the kit is the oil. It includes everything else you need to service your generator. My generator is going on about 15 years old and need to keep it going in great condition. This kit is very important to keeping it serviced. I recommend this product and will continue to purchase. ... show more
Reviewed in the United States on January 9, 2024 by Teresa Chadwick

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