Portable Generators Parts and Accessories

Cummins Onan offers a variety of factory-authorized accessories for portable inverter and dual-fuel generators (such as the P2500i, P4500i/iDF, and P9500DF). Popular options include paralleling kits for doubling output power, custom-fit weather-resistant running covers, high-altitude carburetor kits, and standard maintenance kits containing genuine Onamax oil, spark plugs, and filters.

Essential Portable Generator Accessories

Paralleling Kits: Connect two P2500i or P4500i inverter generators to double your wattage—providing up to a TT-30 30A or 50A outlet to power RVs and heavy loads.

Weather Running Canopies & Covers: Water-resistant polyester-nylon storage covers protect your unit from debris, rain, and snow during travel. Running covers allow you to operate the generator in light rain while keeping it shielded.

High-Altitude Carburetor Kits: Engineered for peak performance and fuel-efficiency in elevations above 3,000 feet, available in specific displacements for P2500i, P4500i, and P9500DF models.

Maintenance & Tune-Up Kits: OEM kits for routine upkeep come with Onamax 15W-40 oil, air/fuel filters, and spark plugs for specific generator specs.