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  • Generac 5665 Maintenance Kit for 20kW, 999cc Engine (Discontinued by Manufacturer)
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Generac 5665 Maintenance Kit for 20kW, 999cc Engine (Discontinued by Manufacturer)

by Generac
| 4 answered questions

List Price: $25.00
Price: $19.99 + $4.99 shipping
You Save: $5.01 (20%)
In stock.
Usually ships within 4 to 5 days.
Ships from and sold by Wayfair.
  • Includes: air filter, oil filter, spark plugs,oil funnel, chamois
  • Oil must be purchased separately
7 new from $19.99

Frequently Bought Together

Generac 5665 Maintenance Kit for 20kW, 999cc Engine (Discontinued by Manufacturer) + Generac 5664 Maintenance Kit for 12 - 18 kW, 760/990cc Engine (Discontinued by Manufacturer) + Briggs & Stratton SAE 5W-30 Synthetic Small Engine Motor Oil - 32 Oz. 100074
Price for all three: $52.22

These items are shipped from and sold by different sellers.

Buy the selected items together


Product Details

  • Product Dimensions: 8 x 8 x 4 inches
  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B003TSFYHY
  • Item model number: 5665
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (33 customer reviews)
  • Amazon Best Sellers Rank: #6,746 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

Product Description

Scheduled maintenance is a necessity for all standby generators. The Air Cooled Scheduled Maintenance kits offer all the hardware 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. Further maintenance details can be found in the generator owner's manual.


Customer Questions & Answers

Customer Reviews

4.8 out of 5 stars
5 star
29
4 star
3
3 star
1
2 star
0
1 star
0
See all 33 customer reviews
I would recommend to anyone who needs to maintain a Generac Generator.
Glenn Bowman
Exactly as described and exactly as the factory originals because it is factory original merchandise at an affordable rate.
Brett
The product is high quality and exactly what is needed to do the job well.
Bevi Robinson

Most Helpful Customer Reviews

12 of 12 people found the following review helpful By Brett on May 8, 2012
Verified Purchase
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?
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12 of 13 people found the following review helpful By Houston2011 on May 14, 2011
Verified Purchase
5665 Maintenance Kit for 20kW, 999cc Engine

NOTE: AS OF THE WRITING OF THIS REVIEW, THE AMAZON PICTURE IS NOT THE ACTUAL KIT IN QUESTION THAT WE RECEIVED, THERE ARE ONLY 2 SPARK PLUGS FOR THE 20KW KIT AND THE COLOR OF THE OIL FILTER WAS DIFFERENT. THE KIT RECEIVED IS THE CORRECT KIT FOR THE MODEL ENGINE IN QUESTION.

THIS KIT IS OEM ORIGINAL EQUIPMENT MANUFACTURER PARTS FOR GENERAC N G 2010 MODEL 5525-1 (0055251):

2 X SPARK PLUGS (COMES WITH A WRENCH) NOTE: YOU WILL NEED TO BUY A FEELER GUAGE TO MEASURE GAP (0.030" FOR 20KW VERSION NEEDED)
OIL FILTER (YOU NEEED TO BUY A 2 1/2" FILTER WRENCH)
AIR FILTER

THESE ITEMS ARE IDENTICAL TO THE FACTORY INSTALLED ITEMS. I COMPARED EACH ITEM TO THE ACTUAL IN THE FACTORY INSTALLED ITEMS IN THE GENERATOR AND THEN WENT TO THE AUTO PARTS STORE TO COMPARE AND AFTER IT WAS ALL SAID AND DONE THERE WAS NOTHING TO IMPROVE, SO I USED EXACTLY WHAT I GOT IN THE BOX.

YOU NEED TO PURCHASE THE OIL. I WAS TOLD BY THE AUTO PARTS STORE NOT TO USE SYNTHETIC UNLESS YOU ARE IN SEVERE COLD AREA UP NORTH. I AGREE WITH THAT RECOMMENDATION.

VERY CONVENIENT TO HAVE IT ALL IN ONE KIT.

REGARDS FROM TEXAS!!!
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7 of 7 people found the following review helpful By Robert Feser on December 15, 2010
Verified Purchase
I could not believe the price on the Generac maintenance kit. For the price of an oil filter at a retail store I received a complete tune up/maintenance kit. What a great value. All the items in the kit were first class.
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2 of 2 people found the following review helpful By ms on June 20, 2013
Note that the newest 20kw, 999cc Generac version (2013) uses a different, rectangular air filter. The round one in this kit will not fit. I had already ordered this kit and luckily opened my new generator in time to be able to cancel my order. I am sure the kit is just fine for the previous versions.
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1 of 1 people found the following review helpful By Lew D. Harkins on April 20, 2013
Verified Purchase
This is an ideal package for any generator owner, all you need with this kit is your favorite oil which is available locally.
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1 of 1 people found the following review helpful By jaspar on August 30, 2012
Verified Purchase
Kit was as advertised. Everything worked and was easy to install. Shipping was fast. If you do not know how to do a valve adjustment, you will still need a service person.
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1 of 1 people found the following review helpful By TexasSwede on June 29, 2012
Verified Purchase
This maintenance kit is exactly what the Generac company provides, it is NEW,
it is what the 20 kw generator requires when routine maintenace which is performed every 200 hours or two years whichever comes first. I am extemely pleased with this product. Installing a backup generator that auto starts when the power fails is one of the best things I have done to make life more pleasent. Never go without power. The Generac company makes it all in America, how about that an American product thru and thru.
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1 of 1 people found the following review helpful By Cliff on February 10, 2012
Verified Purchase
I thought this was a value for the money so I could do the simple maintenance required by myself which will save the price of a service call.
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