- Sku: 37475
- Vendor: Cummins Onan
Cummins Onan P4500i 50A Parallel Kit – Dual Generator Power for RV 50A Systems (Part #A058M290)
🧠 Need more power to run a larger RV or 50A setup with your generator?
The Cummins Onan P4500i 50A Parallel Kit lets you safely connect two generators together, increasing total power output so you can run larger RV systems, including high-demand appliances and air conditioners.
✅ Key Benefits
- ✅ Combines two generators for increased total output
- ✅ Supports larger RVs and 50A electrical systems
- ✅ Designed specifically for Cummins Onan generators
- ✅ Safe and reliable power connection
- ✅ Built for RV use and long-term durability
🚗 Will This Work For My RV?
This product is ideal if you:
- Have a 50A RV or higher power requirements
- Want to run multiple appliances or 15,000+ BTU air conditioners
- Need more power than a single generator can provide
- Plan to run dual-generator setups
Compatible generator setups include:
- Two Cummins Onan P4500i Generators
- One P4500i Generator paired with a P2500i generator
- Two P4500i DF (dual fuel) generators
📦 Product Overview
This genuine Cummins Onan parallel kit is engineered to safely connect two compatible generators and combine their output.
RV air conditioners typically range from 8,000 to 15,000+ BTU, and larger RVs often require more power than a single generator can provide. By running generators in parallel, you can increase output and support 50A setups and higher-demand appliances.
It’s the ideal solution for RV owners who want the flexibility of portable generators while still achieving the power needed for larger rigs.
🏕️ Use Cases
- Running 50A RV electrical systems
- Powering multiple AC units (13,500–15,000+ BTU)
- Boondocking with higher power needs
- Upgrading from a single generator setup
📊 Specifications
- Manufacturer: Cummins Onan
- Part Number: A058M290
- Model Reference: 19-5056
- Application: Parallel generator connection
- Compatibility: Onan P4500i and compatible models
- Warranty: Limited 1 Year
⚠️ Compatibility & Fitment
- Works with Cummins Onan P4500i generators
- Compatible with matching dual-generator setups
- Requires two generators for operation
- Not compatible with non-parallel capable units
🛠️ ArrKann Pro Tips
- For best results, use matching generator models
- Ideal upgrade path from 30A to 50A RV setups
- Pair with a surge protector to protect your RV electronics
- Plan your total load before connecting generators
🔗 Bought Together
Must-Have Add-Ons:
- Cummins Onan P4500i Generator
- Second generator for full setup
- 30A or 50A RV Surge Protector
Upgrade Options:
- Complete dual-generator power system
- Fuel storage and extended runtime solutions
❓ Frequently Asked Questions
Q: What does a parallel kit do?
A: It connects two generators together to increase total power output.
Q: Do I need two generators?
A: Yes, this kit requires two compatible generators to function.
Q: Can I run a 50A RV with this?
A: Yes, when paired with two generators, it can support higher power demands typical of 50A RV systems.
Q: Can I mix generator sizes?
A: Yes, compatible combinations like a P4500i and P2500i can be used together depending on load requirements.
📦 Shipping Information
- Shipping: Available across Canada
- Recommendation: Confirm compatibility before purchase
Have a question?

Cummins Onan P4500i 50A Parallel Kit – Dual Generator Power for RV 50A Systems (Part #A058M290)
