Description
Title
Generac 5985 OEM Maintenance Kit for 80 kW, 4.6L Liquid-Cooled Generators
Product Slug
generac-5985-oem-maintenance-kit-80kw-4-6l-liquid-cooled-generators
Long Description
Perform routine engine service on a compatible liquid-cooled standby generator with the genuine Generac 5985 Maintenance Kit. Designed for select 80 kW generators equipped with 4.6L engines, this kit includes filtration, ignition, and service components for scheduled maintenance.
Engine oil and coolant are not included and must be purchased separately according to the specifications and capacities listed in the generator owner’s manual.
Kit Includes:
• 1 genuine Generac air filter
• 1 genuine Generac air-filter pre-cleaner
• 1 genuine Generac oil filter
• 8 genuine Generac spark plugs
• 1 spark-plug wrench
• 1 oil funnel
• 1 chamois cloth
• 1 preventative-maintenance reminder sticker
Engine oil, coolant, belts, tools other than the included wrench, and additional service supplies are not included.
Product Features:
• Genuine Generac OEM maintenance kit
• Designed for select 80 kW liquid-cooled generators
• Compatible with designated 4.6L engine applications
• Includes air- and oil-filtration components
• Eight spark plugs support complete ignition service
• Spark-plug wrench assists with plug removal and installation
• Reminder sticker helps record the next service date
• Convenient package for scheduled generator maintenance
Compatible Generator Applications:
• Select Generac 80 kW liquid-cooled standby generators
• Select generators equipped with compatible 4.6L engines
• Units that identify maintenance kit 5985 as the required service kit
Compatibility depends on the generator’s complete model, engine configuration, fuel type, production date, and serial number.
Product Information:
• Brand: Generac
• Kit number: 5985
• Product type: Liquid-cooled generator maintenance kit
• Generator output: Select 80 kW models
• Engine application: Select 4.6L engines
• Spark-plug quantity: 8
• Engine oil included: No
• Coolant included: No
• Listed package dimensions: Approximately 14.22 × 38.61 × 39.37 cm
• Condition: New
• Fitment type: Equipment-specific
• Classification: Genuine OEM maintenance components
Maintenance Guidance:
Follow the exact service schedule and procedures in the generator owner’s manual. The supplied guidance recommends maintenance every 100 operating hours or once per year, but the applicable interval may vary by generator model, operating conditions, and application.
Turn off the generator, disable automatic starting, isolate utility and generator power, disconnect the starting battery as directed, and allow the engine to cool before maintenance.
Install the air filter and pre-cleaner in the correct orientation. Clean the oil-filter mounting surface, confirm that the old gasket has been removed, lightly coat the new filter gasket with clean engine oil, and tighten it according to Generac’s instructions.
Check all eight spark-plug gaps before installation and tighten the plugs to the specified torque. Refill the engine and cooling system with the approved oil and coolant types and quantities.
After service, run the generator, inspect the oil and cooling systems for leakage, stop the engine, and recheck all fluid levels. Verify the complete generator model and serial numbers before ordering.







