Regulator for Cummins Onan QG 2500i Onboard RV Generator
Updated 02/18/2026 | Published 02/13/2026
Products Featured in This Question
Question:
Cummins Onan QG 2500i Onboard RV Generator... What LP regulator is needed for this generator? We have tried off the shelf low pressure regulators and they all seem to give too much flow.
asked by: Charles D
Expert Reply:
Hi Charles; do you have the Cummins Onan QG 2500i Onboard RV Generator # CM25ZR installed on your RV? Assuming you do, it will operate off of the existing two-stage regulator. This will maintain a constant 11" w.c. propane pressure. If this is some kind of standalone installation you can use a regulator like # CAM59333 or # CAM59313.
(click to enlarge)
Product Page this Question was Asked From
Onan Generator - QG 2500i Onboard RV Generator w/ Inverter - 2,500 Watts - Propane - CARB Compliant
- Generators
- Inverter
- Propane
- 2001 - 3000 Watts
- Onboard Generator
- 12V Output
- Carbureted
- Electric Start
- Cummins Onan
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Recommended TorkLift Tie Downs for a 2024 F-350 w/a 8' Bed and Factory Hitch
- Q&A: Dimensions of Deezee Truck Bed Mat # DZ26GJ
- Q&A: Recommended Cummins Onan QG 2500i Generator for a Camper
- Q&A: Possible Replacement Solution for Reflect-O-Lite 1400
- Q&A: Troubleshooting a Firestone Air Command That Is Not Pairing to Phone
- Q&A: Looking for Lug Nut Cover for 5/8 inch Lug Nut
- Q&A: Why Are 100psi Rated Compressors Being Recommended For Air Springs With 150psi Capacities
- Article: Trailer Drum Brakes vs. Disc Brakes: Making the Decision
- Article: Replacing RV Awning Fabric: Your Step-by-Step DIY Guide
- Article: The Best Trailer Tongue Locks for Preventing Trailer Theft
- Article: Slipper Spring Trailer Suspension System Review
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Can You Flat Tow a 2024 Chevy Blazer?