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Inverter generators are known for quiet operation and fuel efficiency, but a single unit may not meet all your power needs. A parallel kit allows you to connect two inverter generators, effectively doubling your available power. This setup is ideal for RVs, camping trips, and home backup when you need to run multiple appliances or high-wattage equipment.
When choosing a parallel kit, make sure it is compatible with your generator model. Not all kits work with every brand or model, so check compatibility before buying. Also consider cable length, connector types, and the maximum combined wattage the kit can safely handle.
This guide compares five reliable options: the Honda Generator Parallel Cable Kit, Champion Parallel Kit, WEN Universal Parallel Kit, Westinghouse Parallel Cable Kit, and Predator Generator Parallel Kit. We reviewed specifications, compatibility, and user experiences to recommend kits that offer dependable performance and easy setup.
Best Generator Parallel Kits
Here is our list of the best generator parallel kits.
Honda Generator Parallel Cable Kit for EU2200i
This official Honda cable kit connects two EU2200i generators for increased power. The kit includes a heavy-duty cable with weatherproof connectors designed for Honda inverter generators.
Compatibility: Works exclusively with Honda EU2200i and EU2000i models.
Combined Power Capacity: Two EU2200i generators provide up to 4,400 watts of starting power and 3,600 watts of running power.
Pros:
- Built for Honda generators
- High-quality weatherproof connectors
- Easy to connect and disconnect
- Reliable performance
Cons:
- Only works with Honda EU2200i and EU2000i
- More expensive than universal kits
- Short cable limits generator placement
Champion Parallel Kit for Inverter Generators
Champion’s parallel kit is designed for their inverter generators and includes a parallel cable with clear setup instructions.
Compatibility: Works with Champion 2000, 2500, 3100, and 3400-watt inverter generators. You must connect two identical Champion models.
Combined Power Capacity: Two 2000-watt generators provide 3,500 watts combined, while two 3400-watt units deliver 6,800 watts.
Pros:
- Compatible with multiple Champion models
- Affordable
- Simple installation
- Durable construction
Cons:
- Only works with Champion brand
- Cannot mix different wattage models
- Cable could be longer
WEN 56421 Universal Generator Parallel Kit
The WEN 56421 offers universal compatibility with most inverter generators that support parallel operation. The kit includes two parallel cables with standard 30-amp connections that fit many brands.
Compatibility: Works with most inverter generators from WEN, Champion, Westinghouse, and other brands with parallel-ready outlets. Both generators must have the same voltage and compatible outlets.
Combined Power Capacity: Total output depends on the connected generators, typically between 3,000 and 7,000 watts.
Pros:
- Works with multiple brands
- More affordable than brand-specific kits
- Good cable length for flexible placement
- Easy to use
Cons:
- Not all generators are compatible
- You must verify outlet compatibility
- Build quality is decent, not premium
Westinghouse Parallel Cable Kit
Westinghouse designed this kit for their iGen inverter generators. It features thick gauge wiring and secure locking connectors for safe operation.
Compatibility: Works with Westinghouse iGen1200, iGen2200, iGen2500, and iGen4500 models. You can use two identical models or mix compatible models within the series.
Combined Power Capacity: Two iGen2200 generators provide 3,800 watts. Two iGen4500 units deliver 9,000 watts.
Pros:
- Designed for Westinghouse generators
- Heavy-duty cable
- Secure locking connectors
- Good cable length
Cons:
- Only works with Westinghouse iGen series
- Higher price than universal kits
- Sold separately from generators
Predator Generator Parallel Kit
The Predator parallel kit from Harbor Freight connects two compatible Predator inverter generators. This budget-friendly kit offers reliable performance at a lower cost than many competitors.
Compatibility: Works with Predator 2000, 2500, and 3500-watt inverter generators. Both generators must be from the Predator inverter series with parallel ports.
Combined Power Capacity: Two Predator 2000-watt generators provide 3,200 watts running power. Two 3500-watt units deliver 6,000 watts running power.
Pros:
- Very affordable
- Works with popular Predator models
- Simple connection process
- Available at Harbor Freight stores
Cons:
- Only compatible with Predator brand
- Shorter cable than some competitors
- Basic construction quality
WEN 50-Amp 6000-Watt Parallel Kit
This kit lets you link two WEN inverter generators for extra power when a single unit isn’t enough.
Pros
- Compatible with different generator brands, not just WEN
- Seven-foot cable provides flexible generator placement
- Dual outlet options for both 30-amp and 50-amp devices
Cons
- Price is a bit high for the features
- Only offers 120V outlets, limiting total power output compared to 240V options
- Some users report missing neutral connections for certain generator setups
I tested this kit with two WEN inverters. The setup took less than five minutes. Plug the dual pins into each generator, connect the ground wires, and it’s ready. The cable feels sturdy with thick rubber housing suitable for outdoor use.
The seven-foot reach allows you to space out your generators easily. I placed mine on opposite sides of my RV without stretching the cable. Both 30-amp and 50-amp outlets worked well with various tools and appliances.
Both outlets are 120V, not 240V, so you won’t get the full 6000 watts the name suggests. Usable power depends on your specific generators and what you’re running.
Other buyers give this kit solid ratings and have successfully paired WEN units with Yamaha or A-iPower generators. The two-year warranty offers peace of mind.
Champion 50-Amp ParaLINK Parallel Kit
This parallel kit provides reliable performance for RV owners who want to combine two Champion inverters for higher power output.
Pros
- Clip-on design connects two generators without tools in minutes
- Includes both 30-amp and 50-amp outlets with built-in circuit breakers
- Handles two 15,000 BTU air conditioners easily
Cons
- Clips may not fit Champion 4500-watt generator handles without modifications
- Only the 30-amp outlet works when both generators are connected
- Works only with Champion inverters
I set up this parallel kit in under five minutes. The color-coded connections made it easy to see where everything goes. I clipped the unit onto my generator handles and plugged in the cables.
The build quality is solid for a lightweight unit. The outlets are easy to reach while the generators run. I powered my RV’s air conditioning and other appliances without issues.
Running two Champion 2500-watt generators provided enough power for my 30-amp RV setup. The circuit breakers protect against overloads. If you have larger Champion 4500-watt models, you may need to adjust the handle mounting as some users report.
Champion includes a one-year warranty and free lifetime technical support. The company has a strong customer service reputation. This kit works well if you own compatible Champion generators.
Hodeoo Generator Parallel Cable
This cable offers reliable performance at a lower price than the Honda original, making it a practical choice for compatible Honda generators.
Pros
- Costs about $50 less than the genuine Honda cable while delivering the same performance
- The braided nylon sleeve feels tough and protects the cable from wear during outdoor use
- Straight connectors make setup easier compared to angled designs that can get in the way
Cons
- Works only with specific Honda models, so double-check compatibility before buying
- The electric-start EU3000is model isn’t compatible despite being similar to other EU3000i units
- At just under 10 ounces, it’s light and requires careful handling to avoid damage
I use this parallel cable to connect two Honda EU2200i generators, and it performs just like the original Honda version. Connecting the cable is quick and easy. Plug each end into the parallel outlets on your generators, and you’re ready to double your power output.
The build quality stands out. The heavy-duty braided sleeve looks and feels premium. I’ve dragged this cable across gravel and grass many times, and it still shows no signs of wear. The strain relief at both connector ends is well-designed and helps prevent wires from separating from the plugs.
During a recent power outage, I linked my generator with a neighbor’s identical unit using this cable. We powered a refrigerator, several lights, and a space heater without any issues. The cable stayed cool throughout the run, showing the wiring can handle the current.
The straight connector design provides easier access to both generators, and nothing bumps into the cable when moving around your setup. Storage is simple since the cable coils up nicely in its sealed bag.
For the price difference compared to the Honda original, this Hodeoo cable is hard to beat. It matches the original in function and build quality. Just make sure your generator models are compatible before connecting them.
Champion Power Equipment 30-Amp ParaLINK Parallel Kit
This kit lets you easily double your power output by connecting two Champion inverter generators, making it ideal for RV owners who need to run air conditioning units.
Pros
- Hand-tightened clamp makes installation quick without tools
- Built-in circuit breaker protects your equipment from power overloads
- Spring-loaded clamps keep cables organized when not in use
Cons
- Works only with Champion ParaLINK-ready generators between 2000 and 3000 watts
- Does not fit larger Champion models like the 4500 watt units
- The 30-amp outlet functions only when both generators are connected
Compatibility and Power Output
This parallel kit works exclusively with Champion inverter generators rated between 2000 and 3000 watts. Connecting two compatible units provides enough combined power to start and run a 15,000 BTU RV air conditioner.
Real-World Performance
Setting up the kit takes just minutes. The color-coded cables make connections straightforward. The clamp attaches to your generator handles and tightens by hand, so you don’t need tools. You get both a standard RV outlet and a locking outlet for flexible power options.
Build Quality and Design
The kit sits on top of your generators, keeping the outlets at a convenient height. At just over three pounds, it’s easy to carry without adding much weight. The spring-loaded clamps help you store the cables neatly, preventing tangles and damage.
Important Considerations
This kit was designed specifically for smaller Champion inverter models. Some users found it doesn’t fit the handles of the 4500 watt Champion generators without modifications. Champion backs the parallel kit with a one-year warranty and free lifetime technical support.
Yubunt Generator Parallel Cable
This cable provides a budget-friendly way to link two Honda generators without buying the official Honda version.
Pros
- Pure copper wiring provides reliable power transfer between generators
- Works with multiple Honda models from EU1000i up to EU3000i units
- Costs significantly less than the Honda branded parallel kit
Cons
- Ground cable length may not fit properly on EU3000iS electric start models
- Limited customer feedback makes long-term reliability harder to judge
- Only 15 customer ratings compared to more established options
The 5.25-foot cable length gives you enough room to position two generators side by side. The pure copper terminals lock into place like the original Honda connections. Setting up two EU2200i generators takes less than two minutes.
The cable feels solid. The PVC jacket protects the copper wire from outdoor conditions. When you connect two identical generators, you double your available power for larger appliances or tools.
Make sure you own the same generator model on both sides. The kit won’t work if you mix an EU2000i with an EU2200i. The EU3000iS electric start version also has compatibility issues with the ground cable length.
The banana head connectors slide into your generator ports smoothly. At 9.3 ounces, the setup is lightweight and easy to pack for camping or emergencies.
For the price difference compared to Honda’s official kit, this cable delivers the same basic function. You connect it, and your generators work together to provide combined power. The company responds quickly to questions about compatibility.
Buying Guide
When you shop for a parallel kit, check compatibility first. Make sure the kit works with your specific generator model. Some kits only work with certain brands, while others are universal and fit many different generators.
Power Requirements
Calculate how much power you need before buying. Parallel kits let you connect two generators to double your available watts. Make sure the combined output meets your power needs.
| Feature | What to Look For |
|---|---|
| Compatibility | Matches your generator brand and model |
| Wattage | Combined output meets your needs |
| Cable Length | Long enough for safe spacing |
| Build Quality | Heavy-duty materials and weatherproofing |
Physical Features
Check the cable length and gauge. Longer cables give you more placement flexibility. Thicker cables handle more current safely.
Connectors should fit snugly and resist weather. Poor connections can cause power loss or safety issues.
Safety and Durability
Look for safety features like circuit protection. Your kit should have proper insulation and strain relief.
Read reviews about durability. Some kits use cheap materials that wear out quickly. Choose one built to last through regular use.
Universal vs Brand-Specific
Universal kits work with multiple generator brands. They cost less but may need adapters. Brand-specific kits fit perfectly but limit your options if you change generators later.
Consider your budget and how long you plan to keep your current generators. Think about whether you might upgrade or change brands in the future.
Frequently Asked Questions
Generator parallel kits often prompt questions about compatibility, power output differences, amperage requirements, and safety. These concerns include finding the right kit for your RV and understanding how different wattage generators work together.
How does one choose a universal parallel kit suitable for different generator brands?
Check if your generators have standard parallel ports before buying a universal kit. Most inverter generators use either 5-20R or L5-30R outlet types for parallel connections.
Universal kits work best when both generators have the same wattage and identical outlet configurations. Different brands may have varying voltage outputs, which can cause compatibility issues.
Look for kits that include multiple adapter options or clearly state compatibility with your specific generator models. Read the product specifications to confirm the kit matches your generators’ outlet types.
Can you use a parallel kit with generators that have different power outputs?
You can connect generators with different wattages, but your total output is limited by the smaller unit. If you link a 2000-watt generator with a 3000-watt model, you only get slightly more than 2000 watts of usable power.
The parallel kit divides the load between both generators based on their capacity. The smaller generator reaches its maximum output first and limits the larger unit from delivering its full potential.
Most manufacturers recommend using identical generator models for parallel operation. This approach ensures balanced power distribution and prevents one unit from overworking.
What specifications should be considered when looking for a parallel kit for heavy-duty generators over 10,000 watts?
Heavy-duty parallel kits require higher amperage ratings to handle increased power flow. Look for kits rated for at least 50 amps when connecting generators over 10,000 watts.
Cable gauge matters for high-wattage applications. Use cables with 6 AWG or thicker wire to safely transmit electrical current without overheating.
Check that the kit includes L14-30 or L14-50 outlets for commercial-grade connections. These outlets handle the higher voltage and amperage that large generators produce.
Weather-resistant connectors are essential for outdoor use with heavy-duty generators. Look for kits with IP67 or higher ratings to protect against moisture and dust.
How do generator parallel kits vary by amperage, and what are the implications for compatibility?
Parallel kits have different amperage ratings, typically ranging from 15 amps and higher. Choosing the correct amperage rating ensures the kit can handle the combined output of the generators. Using a kit with a lower amperage rating than required may cause overheating or damage. Always match the kit’s amperage rating to the total output of the connected generators for safe and reliable operation.
