Read the manual thoroughly and understand all of the instructions, cautions, and warnings before using this equipment. If any section of the manual is not understood, contact your nearest authorized dealer, or contact Generac Customer Service at 1-888-436-3722 (1-888-GENERAC), or www.generac.com with any questions or concerns.

Generac cold weather accessories

Environment

This article applies to Generac cold weather accessories designed for specific air-cooled and liquid-cooled home standby generators.

• Generac Next Generation Series 10–28 kW air-cooled standby generators.
• Generac Guardian Series 10–26 kW air-cooled standby generators (2017 to present).
• This article partially applies to the 7.5 kW PowerPact. PowerPact cold weather accessories are provided in the Cold Weather Kit (part number 6808-1).

Accessory part numbers can vary by product series. See each section for series-specific details.

Overview

Generac cold weather accessories are designed to enhance reliability and performance in cold climates by reducing the impact of low temperatures on critical components.

Contents

• What types of cold weather accessories are available?
  • Air-cooled home standby cold weather accessories
  • Liquid-cooled home standby cold weather accessories
• Who are these accessories recommended for?
• Where can I purchase a cold weather kit?
• Who can install the cold weather kit?
• Why are these accessories helpful in cold weather?
• Which units are compatible with cold weather kits?
• AGM batteries and battery pad warmers
• See also

What types of cold weather accessories are available?

Air-cooled home standby cold weather accessories

Battery warmers (pad and wrap around)

Battery pad warmer (Guardian series only)                                   Battery wrap-around warmer (Next Generation series only)

Purpose: Helps maintain battery temperature to support starting performance in extreme cold.

Why it's helpful:

• • Batteries can lose efficiency or freeze in extreme cold, reducing starting power.
  • Adding warmth supports reliable starts and can extend battery usability in cold weather.

• Recommended for regions regularly experiencing temperatures below 32 °F (0 °C).
• Compatible with units manufactured from 2008–present.
• Not necessary for Guardian-series generators using 35 AGM-style batteries with 650 CCA. Wrap around warmers are compatible with Next Generation models with AGM batteries.
• Part numbers: G0071010 (Guardian Series), G0072110 (Next Generation Series). For 7.5 kW PowerPact units, this item is included in the Cold Weather Kit (part number 6808-1).

Oil filter warmer (oil warmer)

Purpose: Helps keep engine oil flowing by reducing the chance of thickening around the oil filter in cold temperatures.

Why it's helpful:

• • In freezing conditions, engine oil can become more viscous, making circulation harder.
  • A warm oil filter supports smoother oil flow, reducing engine strain during starts.

• Compatible with units manufactured from 2008–present.
• Part numbers: G0071020 (Guardian Series), G0071021 (Next Generation Series).

Breather warmer (or breather heater)

Purpose: Helps prevent ice formation in the breather system and maintains proper airflow/venting.

Why it's helpful:

• • Moisture can freeze in sub-zero temperatures, causing blockages and performance issues.
  • Added heat reduces ice buildup risk to help maintain airflow in extreme cold.
• Suitable for extremely cold climates where heavy icing occurs.
• Compatible with units manufactured from 2008–present.
• Part numbers: G0071030 (Guardian Series), G0071032 (Next Generation Series).
• Installation instructions: How to install a breather warmer?

Liquid-cooled home standby cold weather accessories

Consult the unit’s service documentation or an IASD for liquid-cooled accessory options and compatibility.

Who are these accessories recommended for?

• Regions where winter temperatures routinely fall below 32 °F.
• Extreme-cold areas with regular sub-zero conditions or heavy icing.

Who can install the cold weather kit?

• Connection points vary by model. Consult the owner’s manual for complete instructions or use the dealer locator to contact a Generac service dealer for installation help.
• In addition to installing a battery with higher CCA (cold cranking amps), cold weather accessories are recommended in regions where temperatures regularly fall below 32 °F (0 °C).
• When installing any cold weather item, replace engine oil with either Generac 5W-20 full synthetic oil or 5W-30 full synthetic oil.
• Accessory thermostats typically switch ON at 40 °F (4 °C) and OFF at 55 °F (13 °C).

Why are these accessories helpful in cold weather?

• Improve starting performance and reduce mechanical strain in low temperatures.
• Help maintain proper lubrication, airflow, and battery readiness.

Which units are compatible with cold weather kits?

Compatibility varies by model, production year, and controller. Connections may differ for older generator models. For controller-specific or legacy model guidance, contact an IASD or Generac Customer Support (888-436-3722).

AGM batteries and battery pad warmers

Battery warmers are not recommended with AGM-style batteries when used with Guardian-series units. When used with Next Generation standby generators, battery pad warmers for AGM-style batteries are recommended.

Where can I purchase a cold weather kit?

• Use the dealer locator to find a local Generac dealer.
• Ordertree and other retailers may carry individual accessories by part number.

See also

• What is a Generac Cold Weather Kit?
• How does cold weather impact home standby fuel systems?
• What type of oil should I use in my home backup generator?
• Oil FAQ for home standby generators
• Selecting and replacing a battery for a home standby generator
• What battery do I need for my home standby generator?
• How to install a breather warmer