---
product_id: 5957611
title: "Generac 6485 Scheduled Maintenance Kit for 20kW and 22kW Standby Generators with 999cc Engine Black"
brand: "generac"
price: "335.72 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Generac"
url: https://www.desertcart.tn/products/5957611-generac-6485-scheduled-maintenance-kit-for-20kw-and-22kw-standby
store_origin: TN
region: Tunisia
---

# Service every 200 hours/2 years Fits 20kW-26kW Generac engines Complete OEM maintenance kit Generac 6485 Scheduled Maintenance Kit for 20kW and 22kW Standby Generators with 999cc Engine Black

**Brand:** generac
**Price:** 335.72 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Keep your power running flawlessly—DIY maintenance made sleek and simple!

## Quick Answers

- **What is this?** Generac 6485 Scheduled Maintenance Kit for 20kW and 22kW Standby Generators with 999cc Engine Black by generac
- **How much does it cost?** 335.72 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/5957611-generac-6485-scheduled-maintenance-kit-for-20kw-and-22kw-standby)

## Best For

- generac enthusiasts

## Why This Product

- Trusted generac brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-in-One OEM Kit:** Includes air filter, foam pre-cleaner, oil filter, 2 spark plugs, funnel, cloth & reminder sticker—everything for hassle-free DIY maintenance.
- • **Warranty-Safe Parts:** Genuine Generac components preserve engine life and keep your warranty intact—no compromises, no risks.
- • **Precision Engine Fit:** Tailored for 999cc V-Twin engines (2013+), ensuring perfect compatibility and peak performance.
- • **Effortless DIY Service:** Step-by-step manual with no special tools needed—empower yourself and save on costly technician visits.
- • **Smart Maintenance Reminder:** Includes sticker to track your next service, so you never miss a beat on generator care.

## Overview

The Generac 6485 Scheduled Maintenance Kit is a comprehensive OEM service package designed for 20kW to 26kW Generac standby generators with 999cc V-Twin engines (2013 or newer). It includes all essential replacement parts—air filter, foam pre-cleaner, oil filter, two spark plugs—plus handy tools like an angled oil funnel, microfiber cloth, and a maintenance reminder sticker. This kit supports warranty compliance and enables easy, tool-friendly DIY servicing every 200 hours or 2 years, helping professionals maintain reliable backup power with confidence and convenience.

## Description

The Generac 6485 Scheduled Maintenance Kit contains every factory-recommended replacement part needed to complete a full service on 20kW, 22kW, 24kW, and 26kW air-cooled Generac standby generators equipped with a 999cc V-Twin engine manufactured in 2013 or later. Which generators does this kit fit? This kit is compatible with Generac, Honeywell by Generac, and Centurion by Generac standby generators using the 999cc V-Twin engine. To confirm compatibility, locate the model and serial number plate on your generator enclosure or refer to your owner's manual. Generators built before 2013 use a different engine specification and require a different maintenance kit. What is included in the box? The kit contains one OEM flat-panel air filter, one foam air pre-cleaner, one spin-on oil filter, two pre-gapped OEM spark plugs, an angled oil funnel, a microfiber cleanup cloth, a step-by-step instruction manual, and a preventative maintenance reminder sticker. No special tools are required beyond standard hand tools. Engine oil is not included. Generac recommends SAE 5W-30 full synthetic engine oil for the 999cc V-Twin engine. Purchase oil separately before beginning your service. The generator must be fully shut down and cooled before starting any maintenance procedure. How often should you service your generator? Generac recommends completing a full scheduled maintenance service every 200 hours of runtime or every 2 years, whichever comes first. Generators operating in dusty or debris-heavy environments may require more frequent service — consult your owner's manual for adjusted intervals. Does this kit protect your warranty? Using genuine OEM Generac parts at the factory-recommended service interval maintains your generator's warranty compliance. Aftermarket parts may not meet the engine tolerances required to preserve warranty coverage. After completing the service, reset the maintenance reminder using your generator's controller — instructions are included in the manual and in your generator's owner's manual. All parts are covered under Generac's standard parts warranty.

Review: Satisfied - Maintenance parts to service generac that are well priced
Review: Easy Peasey! Some tips for first timers - 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! 😎

## Features

- FITS 20KW, 22KW, 24KW, AND 26KW GENERAC STANDBY GENERATORS: Designed for air-cooled Generac, Honeywell by Generac, and Centurion by Generac standby generators with a 999cc V-Twin engine manufactured in 2013 or later
- COMPLETE OEM SERVICE KIT WITH ALL REPLACEMENT PARTS INCLUDED: Contains one OEM air filter, one foam air pre-cleaner, one spin-on oil filter, and two pre-gapped spark plugs — every consumable component required for a full scheduled maintenance service
- GENUINE GENERAC PARTS PROTECT ENGINE LIFE AND WARRANTY COMPLIANCE: Factory-engineered OEM components maintain the tolerances and performance standards required to keep your generator within Generac's factory warranty conditions at every service interval
- INCLUDES ANGLED OIL FUNNEL, MICROFIBER CLOTH, AND REMINDER STICKER: The angled funnel prevents spills during oil changes, the microfiber cloth handles cleanup, and the maintenance tracking sticker records your next service date directly on the enclosure
- SERVICE EVERY 200 HOURS OR 2 YEARS — ENGINE OIL NOT INCLUDED: Follow the factory-recommended interval to maintain reliability; generators in dusty environments may require more frequent service — purchase SAE 5W-30 full synthetic engine oil separately
- STEP-BY-STEP INSTRUCTION MANUAL INCLUDED — NO SPECIAL TOOLS REQUIRED: The enclosed instruction manual guides you through each service step using standard hand tools, making this a straightforward DIY service for homeowners without professional technician experience
- VERIFY YOUR ENGINE SIZE AND BUILD YEAR BEFORE ORDERING: This kit fits 999cc V-Twin engines built in 2013 or later only — check the model and serial number plate on your generator enclosure or owner's manual to confirm compatibility before purchasing
- WHAT'S INCLUDED: AIR FILTER, PRE-CLEANER, OIL FILTER, TWO SPARK PLUGS, FUNNEL, CLOTH, STICKER, AND MANUAL: All parts are covered under Generac's standard parts warranty — engine oil must be purchased separately to complete the service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Generac |
| Color | Black |
| Fuel Type | Gasoline |
| Item Dimensions L x W x H | 2"L x 2"W x 2"H |
| Item Weight | 16 ounces |
| Material Type | Plastic |
| Power Source | Manual |
| Recommended Uses For Product | Residential |
| Wattage | 22000 watts |

## Product Details

- **Brand:** Generac
- **Fuel Type:** Gasoline
- **Included Components:** 20KW-22KW MAINTENANCE KIT
- **Item Weight:** 16 ounces
- **Output Wattage:** 22 Kilowatts
- **Power Source:** Manual
- **Recommended Uses For Product:** Residential
- **Special Feature:** Portable
- **Voltage:** 240 Volts (AC)
- **Wattage:** 22000 watts

## Images

![Generac 6485 Scheduled Maintenance Kit for 20kW and 22kW Standby Generators with 999cc Engine Black - Image 1](https://m.media-amazon.com/images/I/91bYHGlO3YL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Satisfied
*by P***S on June 28, 2026*

Maintenance parts to service generac that are well priced

### ⭐⭐⭐⭐⭐ Easy Peasey! Some tips for first timers
*by B***B on June 3, 2024*

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! 😎

### ⭐⭐⭐⭐⭐ Perfect DIY Saved Money
*by I***Y on April 20, 2026*

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

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-19*