Essential and Recommended Accessories for Generac Generators
A Generac generator by itself provides the core backup power system, but the right accessories maximize its performance, extend its life, and protect your home more completely. Some accessories are essential for every installation. Others are recommended for specific climates, property types, or homeowner preferences. Here is a complete guide to the accessories that pair with Generac Guardian and Protector series generators.
Essential Accessories
Automatic Transfer Switch
If you are purchasing a generator unit only (not a bundled kit), you need a matching automatic transfer switch. Generac offers 200-amp whole-house transfer switches, 200-amp load center transfer switches with integrated breaker panels, and 100-amp load center switches for smaller installations. The transfer switch must match your electrical panel amperage and be compatible with your specific generator model. Purchasing a generator and transfer switch as a matched kit ensures compatibility and typically offers better combined value.
Mounting Pad
Every standby generator needs a level, stable mounting surface. Options include poured concrete pads (typically 4 inches thick, sized to the generator footprint plus 2 to 3 inches per side), and composite generator pads that are pre-formed, lightweight, and do not require concrete work. Generac and third-party manufacturers offer composite pads specifically sized for Guardian generators. A composite pad is faster to install and resists cracking better than concrete in freeze-thaw climates.
Maintenance Kit
A factory maintenance kit matched to your generator model contains the correct oil, oil filter, air filter, and spark plugs for a standard service interval. Generac organizes maintenance kits by engine type: kits for the 530cc engine (used in 10kW to 13kW models), the 999cc engine (used in 16kW to 22kW models), and the larger engines used in 24kW+ models. Having a maintenance kit on hand before storm season ensures you can perform service promptly during extended outages without waiting for parts delivery.
Climate-Dependent Accessories
Cold Weather Kit
For generators installed in climates where temperatures regularly drop below 32 degrees Fahrenheit, a Generac cold weather kit is strongly recommended. The kit includes a battery warmer that maintains cranking power in freezing conditions and an oil heater that keeps engine oil at proper viscosity for reliable cold starts. Without a cold weather kit, a dead battery or thickened oil can prevent the generator from starting during the exact winter storm it was purchased to protect against. Cold weather kits are model-specific and cost approximately $100 to $200.
Battery Heater (Standalone)
For installations in moderately cold climates where a full cold weather kit may not be necessary, a standalone battery heater provides targeted protection for the most vulnerable cold-weather component. The battery heater wraps around or sits beneath the battery and maintains temperature above the threshold for reliable cranking.
Monitoring Accessories
Mobile Link WiFi Module
Current Guardian models include built-in WiFi and Mobile Link capability. Older Guardian models (pre-2020) and some entry-level units may require the add-on Mobile Link WiFi module to enable remote monitoring. The module connects to your home WiFi network and allows smartphone monitoring of generator status, power events, and maintenance alerts. If your generator does not have built-in WiFi, this is a high-value upgrade.
4G LTE Cellular Monitor
For properties without reliable WiFi or where the internet goes down during power outages (which is common since many routers and modems lose power), the Generac 4G LTE cellular monitoring module provides monitoring over the cellular data network. This ensures continuous remote visibility even when your home internet is offline. The cellular module is ideal for vacation homes, rural properties, and rental properties where WiFi may not be available or reliable.
Optional Accessories
Generator Base Wrap
The Generac base wrap is a cosmetic cover that conceals the generator mounting frame and any visible gap between the enclosure and the pad. It provides a cleaner, more finished appearance for installations visible from the street, patio, or outdoor living areas.
Whole-House Surge Protector
While not technically a generator accessory, a whole-house surge protector is strongly recommended alongside any generator installation. Power transitions between utility and generator can create voltage transients that affect sensitive electronics. A surge protector at the panel smooths these transitions and guards against utility-side surges during storms.
IB Lighting carries the complete range of Generac accessories including maintenance kits, cold weather kits, mounting pads, monitoring modules, transfer switches, and more. Call (800) 674-9019 with your generator model number to confirm which accessories you need, or browse accessories in our online shop.