50-amp inverter generator parallel cord kit with 14-50R outlet for connecting compatible Cummins Onan portable inverter generators in parallel.
The Cummins Onan A058M290 paralleling kit allows compatible Cummins Onan portable inverter generators to be connected together for increased available output. This is useful for RV owners who want more power than a single portable inverter generator can provide while still using portable generator flexibility.
This kit is commonly listed for the Onan P4500i portable inverter generator and provides a 50-amp 14-50R outlet for connecting a compatible RV power cord. Generator compatibility should be verified before ordering, especially when pairing different portable inverter generator models.
Provides a 50-amp 14-50R outlet for compatible RV power connections
Connects compatible portable inverter generators together for increased available power
Commonly listed for Cummins Onan P4500i portable inverter generator applications
Includes the parallel connection cord assembly with RV-style outlet connection
This paralleling kit is not universal for every generator. It is intended for compatible Cummins Onan portable inverter generator applications and is commonly associated with P4500i generator setups. Before ordering, confirm your generator model numbers and review the generator owner’s manual for approved paralleling combinations. Only connect compatible inverter generators that are designed to be paralleled. Do not attempt to parallel non-compatible generators or connect generators using improvised wiring.
Before Starting: Read the generator owner’s manual and confirm that both generators are approved for parallel operation with this kit. Basic Setup Steps: 1. Confirm Generator Compatibility: Verify both generator model numbers and approved parallel pairing before connecting the kit. 2. Place Generators Safely: Set both generators outdoors on a stable, level surface with proper ventilation and clearance. 3. Turn Loads Off: Make sure RV appliances and connected loads are off before connecting power. 4. Connect Parallel Leads: Attach the paralleling kit leads to the correct parallel ports on each compatible generator. 5. Start Generators: Start each generator according to the generator operating instructions. 6. Connect RV Cord: Connect the compatible RV power cord to the 14-50R outlet on the paralleling kit. 7. Apply Loads Gradually: Turn on RV loads one at a time and stay within the combined generator output limits.
Package Contents: • Cummins Onan A058M290 50-amp paralleling kit / parallel cord assembly • Integrated 14-50R outlet connection NOT Included — May Also Need: • Portable inverter generators • RV power cord • Generator fuel, oil, or maintenance supplies • Generator cover or storage bag • Adapters for non-50-amp RV connections This listing is for the paralleling kit only. Generators and RV power cord are sold separately.
To confirm compatibility before ordering, have the following ready: • Generator model number for each generator • Whether each generator has parallel connection ports • RV power cord amperage and plug style • Total wattage load you plan to run • Owner’s manual parallel operation instructions Why this matters: Parallel kits must match the generator design and approved connection setup. Compatible generators can share load safely through the proper kit; incompatible generators should not be connected together.
Match this paralleling kit by generator model and approved parallel compatibility. Do not connect generators together unless the owner’s manual confirms they are designed for parallel operation.
Always operate portable generators outdoors and away from doors, windows, vents, and enclosed areas. Carbon monoxide from generator exhaust can be deadly.