Replacement Onan QG-4000 Generator In A Jayco RedHawk 31XL
Updated 08/15/2025 | Published 07/20/2025
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Question:
I need to replace the generator in my Jayco RedHawk 31XL. It is a QG-4000, 4KY-26100R. Is your Cummins Onan Quiet Series Onboard RV Generator - 4,000 Watts - Gasoline Part Number: CM32ZR $4,190.06 an exact replacement for it? Is the QG-4000i also an exact replacement? Thank you, very much for your assistance
asked by: Miklos B
Expert Reply:
Hi Miklos!
The Onan QG-4000 4KY-26100R you have in your Jayco RedHawk 31XL will be the exact same thing as our part # CM32ZR. While the QG-4000 and QG-4000i both are Onan RV generators and share the same power output (4000 watts), the "i" in QG-4000i indicates it's an inverter generator, which has a different internal design and operating characteristics compared to the standard QG-4000. This makes it CARB complaint, so it can be used in California. It can be used as a replacement, but I do have to note that the air inlet and outlet is swapped. I included a picture showing what I mean.
If you are wanting to swap to the "i" variant, you will want the Cummins Onan QG 4000i Onboard RV Generator w/ Inverter - 4,000 Watts - Gasoline - CARB Compliant # CM42ZR.
Do you find yourself in California very often? If so, which part? I am originally from San Diego so I always like to see where people are traveling.
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Onan Generator - Quiet Series 4000 EVAP Onboard RV Generator - 4,000 Watts - Gasoline
- Generators
- No Inverter
- Gas
- 3001 - 4000 Watts
- Onboard Generator
- 12V Output
- Carbureted
- Electric Start
- Cummins Onan
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Lazer S.
8/15/2025
Hey Miklos, Did you decide to stick with the standard QG-4000 for your Jayco RedHawk, or are you considering the inverter model for those California trips? I'm curious because it might help others who are in a similar situation. Let me know if you need any more help!