UGP Maintenance Kit with 0J8478 Air Filter, 0868539E Oil Filter, 490155T Spark Plugs for 14–22 kW Generators

Description

The UGP 0868539E maintenance kit is an aftermarket service kit designed for select 14–22 kW air-cooled standby generators manufactured in 2013 or later. It is intended for compatible Evolution-series generators with V-Twin 999cc engines. This kit includes an air filter, a high-capacity oil filter, and two spark plugs to help maintain essential engine filtration and ignition components. Engine oil is not included.

Before ordering, verify your generator’s complete model number, serial number, engine displacement, production date, and original part numbers. Compatibility depends on the exact generator model and engine configuration.

UGP 0868539E Maintenance Kit: What’s Included?

This UGP generator maintenance kit contains the following aftermarket replacement components:

• 1 × UGP air filter: Replaces Generac part number 0J8478.
• 1 × UGP oil filter: Part number 0868539E.
• 2 × UGP spark plugs: Part number 490155T.
• Engine oil: Not included.

The kit brings together three types of replacement components used in compatible standby generator maintenance. Check your owner’s manual for the recommended service intervals and the correct engine-oil viscosity and quantity.

Key Features and Benefits

Air filter replacement

The included UGP air filter replaces Generac 0J8478. Its purpose is to help prevent dust and debris from entering the engine through the intake airflow. Maintaining a clean air filter helps support proper engine operation. Always inspect and replace the filter according to the generator manufacturer’s maintenance instructions.

High-capacity oil filter

The UGP 0868539E oil filter is a high-capacity replacement component designed to help capture contaminants from the engine’s lubrication system.

• Filter diameter: 90 mm.
• Approximately 30% more capacity than a standard 75 mm oil filter.
• Replacement references include Generac 070185E, 070185ES, 070185B, 070185D, and 070185F.

Confirm the correct filter specification for your generator before installation. The capacity comparison refers to the stated filter capacity difference, not a guaranteed increase in engine performance or service life.

Two replacement spark plugs

The kit includes two UGP 490155T spark plugs. These components support dependable ignition, smooth starting, and consistent operation when correctly matched to the engine.

The listed replacement references are Briggs & Stratton 496018T and Champion RC14Y. Check the engine manufacturer’s specifications before installing replacement spark plugs.

Generator Compatibility: 14–22 kW Models

This maintenance kit is intended for select air-cooled standby generators in the 14–22 kW output range, primarily 2013 and newer Evolution-series units with compatible V-Twin 999cc engines.

Compatible generator brands and branded lines include:

• Generac
• Guardian
• Centurion
• Honeywell
• Watchdog
• Siemens
• Carrier
• Eaton

Compatibility varies by model, production date, engine configuration, and original component specifications. A brand name or matching generator output alone does not confirm fitment.

Compatible generator model numbers

The following model numbers are listed for compatibility verification:

006250R0, G0060550, G0060551, G0060980, G0060981, G0061030, G0061031, G0062400, G0062410, G0062420, G0062430, G0062440, G0062470, G0062480, G0062490, G0062500, G0062540, G0062550, G0062560, G0062561, G0062570, G0062571, G0062572, G0062573, G0062580, G0062581, G0062582, G0062583, G0062600, G0062601, G0062602, G0062610, G0062620, G0062621, G0062650, G0062660, G0062670, G0062680, G0062700, G0062701, G0062702, G0062710, G0062711, G0062740, G0062750.

Important: Use the complete model and serial numbers to confirm compatibility before purchase. If your generator is not listed, consult the original equipment documentation or a qualified generator service professional.

Replacement Part Number Reference

Use this reference list to compare the components in the kit with the original parts specified for your generator.

These numbers are cross-reference information, not a guarantee that every listed component fits every generator in the stated power range. Confirm the original part numbers before ordering.

Product Specifications

• Brand: UGP
• Product type: Aftermarket generator maintenance kit
• Application: Select air-cooled standby generators
• Generator output range: 14–22 kW
• Engine application: Select V-Twin 999cc engines
• Series application: Select 2013 and newer Evolution models
• Air filter reference: Generac 0J8478
• UGP oil filter: 0868539E
• UGP spark plugs: 490155T, two included
• Oil included: No

Installation and Maintenance Safety

Before servicing your standby generator, follow the manufacturer’s instructions and safety procedures.

1. Disable automatic starting before beginning maintenance.
2. Disconnect the battery as directed in the owner’s manual.
3. Allow the engine to cool before working on the generator.
4. Confirm that all replacement parts match your generator’s specifications.
5. Use the engine-oil viscosity and quantity specified in the owner’s manual; oil must be purchased separately.
6. Follow the manufacturer’s installation instructions for the air filter, oil filter, and spark plugs.

If you are unsure about compatibility or safe installation, consult a qualified generator technician.

Frequently Asked Questions

1. What does the UGP 0868539E maintenance kit include?

The kit includes one UGP air filter replacing Generac 0J8478, one UGP 0868539E high-capacity oil filter, and two UGP 490155T spark plugs. Engine oil is not included.

2. Which generators are compatible with this maintenance kit?

It is designed for select 14–22 kW air-cooled standby generators, primarily 2013 and newer Evolution-series models with compatible V-Twin 999cc engines. Check your complete generator model number, serial number, production date, and original part numbers before ordering.

3. Does this generator maintenance kit include engine oil?

No. Engine oil is not included. Refer to your generator owner’s manual for the required oil viscosity and quantity, and purchase the correct oil separately.

Order Your UGP Generator Maintenance Kit

Choose the UGP 0868539E maintenance kit when its included replacement components match your generator’s requirements. Review the compatibility information carefully, confirm the original part numbers, and follow the manufacturer’s maintenance instructions before installation.