Generac 6485 OEM Maintenance Kit for 20–22 kW, 999cc Air-Cooled Standby Generators

Description

Maintain your compatible air-cooled home standby generator with the genuine Generac 6485 Maintenance Kit. This generac 6485 maintenance kit is engineered for select 20 kW and 22 kW generators manufactured in 2013 or later with compatible 999cc engines, giving you everything needed for routine servicing except the engine oil itself.

Whether you are looking for a generac maintenance kit 22kw or a generac maintenance kit 20kw, this genuine OEM kit covers both ratings in the 20–22 kW range. It is the factory-recommended generac 999cc maintenance kit for Evolution-series home standby generators, ensuring your unit receives the exact filters, plugs, and accessories specified by Generac.

Replacing the air filter, pre-cleaner, oil filter, and spark plugs at the recommended intervals helps support clean airflow, effective oil filtration, dependable starting, and consistent standby-generator operation.

generac 6485 maintenance kit — What’s Included

• 1x Air-Filter Pre-Cleaner
• 1x Air Filter
• 1x Oil Filter
• 2x Spark Plugs
• 1x Oil Funnel
• 1x Blue Chamois
• 1x Instruction Sheet
• 1x Preventive-Maintenance Reminder Sticker

Engine oil is not included and must be purchased separately according to the viscosity and capacity specified in your generator owner’s manual. Browse our generator motor oil and complete maintenance kits categories if you need oil or an aftermarket generac 6485 maintenance kit alternative.

Compatible Generator Models

This generac 20kw generator maintenance kit and generac 22kw generator maintenance kit fits the following specific Generac home standby generator models:

• 006250R0
• G0060550, G0060551
• G0060980, G0060981
• G0061030, G0061031
• G0062440
• G0062500
• G0062580, G0062581, G0062582, G0062583
• G0062620, G0062621
• G0062680
• G0062770, G0062771
• G0065510, G0065511, G0065512
• G0065520, G0065521
• G0065530, G0065531, G0065532
• G0065540, G0065541
• G0065550, G0065551
• G0065560, G0065561
• G0067261
• G0067270
• G0067290, G0067291, G0067292
• G0067300, G0067301
• G0067320
• G0067330
• G0070340

Note: Compatibility depends on your generator’s complete model number, serial number, engine displacement, and production date. Verify fitment before ordering — contact our support team if you need help confirming whether this generac oem maintenance kit matches your unit.

Part Number & Cross-Reference

This is a genuine Generac OEM factory maintenance kit. The generac 6485 kit number is the official part number for select 20–22 kW air-cooled standby generators with 999cc engines.

Kit Cross-Reference:

• Generac 6485 (OEM factory kit)
• Replaces individual service components for designated 20–22 kW 999cc models

For an aftermarket alternative, see the UGP 6485 maintenance kit which includes the core air filter, oil filter, and spark plug components.

Product Specifications

Installation & Maintenance Notes

Follow the maintenance schedule provided in your generator owner’s manual. Service requirements may be more frequent when the generator operates in dusty, dirty, or demanding conditions.

Before Servicing:

• Turn off the generator
• Disable automatic starting
• Disconnect the battery as directed
• Allow the engine to cool completely

Air Filter & Pre-Cleaner: Ensure the new air filter and pre-cleaner are correctly seated in the housing to prevent debris from entering the engine.

Oil Filter: Lightly coat the new oil-filter gasket with clean engine oil and install according to the manufacturer’s specified tightening instructions.

Spark Plugs: Check both spark-plug gaps before installation and tighten to the engine manufacturer’s specified torque for dependable ignition.

After Installation: Refill the engine with the approved oil type and quantity, then inspect the oil-filter area for leakage. Apply the preventive-maintenance reminder sticker to track your next service date.

Always verify your generator’s complete model number, serial number, engine displacement, and production date before ordering.

OEM vs Aftermarket

This generac 6485 maintenance kit is a genuine Generac OEM factory kit, including all original accessories such as the oil funnel, blue chamois, instruction sheet, and maintenance sticker. If you are looking for a lower-cost alternative that includes the core filters and spark plugs without the accessories, consider the UGP 6485 aftermarket maintenance kit as a compatible generac air-cooled standby generator maintenance kit option.

Frequently Asked Questions

Q: Will this generac 6485 maintenance kit fit my 22 kW Generac generator?
A: This kit is designed for select 20–22 kW air-cooled home standby generators with 999cc engines, primarily 2013 and newer Evolution-series models. Check the compatible model list above or verify your generator’s model number, serial number, and engine code before ordering. If you’re unsure, contact our support team with your model info.

Q: Does this generac maintenance kit 22kw include engine oil?
A: No. This generac 6485 kit includes the pre-cleaner, air filter, oil filter, spark plugs, funnel, chamois, instructions, and sticker — but engine oil is sold separately. Browse our motor oil category for the correct viscosity and capacity for your 999cc engine.

Q: What’s the difference between this Generac 6485 kit and the UGP 6485 kit?
A: This is the genuine Generac OEM 6485 kit with all factory accessories (funnel, chamois, sticker, instructions). The UGP 6485 kit is an aftermarket alternative that includes the core air filter, oil filter, and spark plugs without the accessories. Both fit the same 20–22 kW 999cc generators.

Q: How often should I use this generac 20kw generator maintenance kit?
A: Follow the maintenance schedule in your generator owner’s manual. Most 20–22 kW Generac home standby generators require service every 200 hours of operation or at least once per year, whichever comes first. Service more frequently in dusty or demanding conditions.

Q: Is this the right kit for a Generac Guardian or Centurion model?
A: This generac home standby generator maintenance kit fits select generators sold under the Generac, Guardian, Centurion, Honeywell, Watchdog, Siemens, Carrier, and Dayton brands. Verify your exact model number against the compatibility list above before ordering.