Generac 0D8564ASRV Mixer/Airbox Assembly for GT990 Generators – Replaces 0C7720

Description

Restore the fuel-and-air delivery system in your compatible standby generator with the genuine Generac 0D8564ASRV Mixer/Airbox Assembly. Designed for select older home standby generators equipped with mechanically governed GT990 990/992cc engines, this assembly mixes the incoming fuel and air before delivering the mixture to the engine.

A damaged mixer, airbox, or throttle-linkage component can contribute to difficult starting, rough operation, stalling, or improper engine-speed control. This genuine Generac service assembly provides the application-specific fit and function required for compatible generator models.

Package Includes:

• 1 genuine Generac mixer and airbox assembly

Part-Number References:

• Current service part: 0D8564ASRV
• Replaces: 0C7720
• Replaces: 0D8564
• Replaces: 0D8564A

Compatible Applications Include:

• Select Generac home standby generators
• Select mechanically governed units
• Select GT990 990/992cc engines
• Generac 4456-series 12kW generators
• Generac 4390-series 15kW generators
• Certain compatible generators sold under Guardian, Centurion, Honeywell, Siemens, Eaton, Carrier, Bryant, and Watchdog branding

Compatibility with related brands depends on the generator’s underlying Generac model, engine configuration, and production revision.

Product Information:

• Brand: Generac
• Part number: 0D8564ASRV
• Product type: Mixer and airbox assembly
• Engine application: Select GT990 990/992cc engines
• Governor application: Select mechanical-governor systems
• Condition: New
• Quantity: 1 assembly

Installation Information:

Inspect the intake gaskets, rubber seals, hoses, and related mounting components during replacement. Older seals and gaskets may tear or lose their seal during disassembly, so replacement is recommended when their condition is questionable. These additional components are not included unless specifically shown or stated in the package contents.

Because this assembly is part of the engine’s fuel-and-air system, correct installation and adjustment are essential. Installation by a qualified generator technician is recommended. Follow the appropriate service manual and check engine operation after installation.