Recommended Cummins Onan Exhaust Kit for a QG 4000 Generator 4KY-26100R
Updated 09/06/2026 | Published 08/13/2026
Products Featured in This Question
Question:
2021 Jayco Alante 27A Looking for the exhaust tail pipe for the QG 4000i DF Onboard RV Generator, serial. Approximately 3.5inch X 22inch X 1 1/4. Needing the exhaust pipe shown in picture 3 of the In Use/Installedinch pictures. Any suggestions?
asked by: Glenn B
Expert Reply:
Thanks for the information Glenn! The Cummins Onan Exhaust Kit item # CM85FV is the correct one for your Onan Generator - QG 4000i DF Onboard RV Generator item # CM66GR.
The Cummins Onan Exhaust Kit item # CM85FV is designed specifically to fit the Onan QG 4000i DF generators. It has a 1-1/4" outer diameter, is 21-7/8" long overall, and has a 90° bend which drops down 3-1/2" from where it connects to the generator.
I attached a diagram below that will show you the dimensions of the Cummins Onan Exhaust Kit item # CM85FV.
Where do you typically run your QG 4000i? Do you boondock or tailgate at all? Feel free to answer this and throw in any other questions you have, where it says Add Comment.
(click to enlarge)
Product Page this Question was Asked From
Onan Generator - QG 4000i DF Onboard RV Generator - 4,000 Watts - Gas or Propane
- Generators
- Inverter
- Gas
- Gas and Propane
- Propane
- 3001 - 4000 Watts
- Onboard Generator
- 120V Output
- Electronic Fuel Injection
- Electric Start
- Cummins Onan
more information >
Continue Researching
- Shop: Cummins Onan Exhaust Kit
- Search Results: accessories and parts
- Shop: Utopia RV Kitchen Faucet with Pull-Down Sprayer - Brushed Nickel
- Shop: Cummins Onan EC-AGS+ Auto Generator Start System - Bluetooth - Diesel RVs
- Shop: Onan Generator - QG 4000i DF Onboard RV Generator - 4,000 Watts - Gas or Propane
- Shop: Adapter 5-Pin Male to 4-Pin Female for Rear View Safety Camera Systems
- Shop: Rear View Safety 5-Pin Female to 4-Pin Male Camera Adapter
- Video: A Closer Look at the Camco Gen-Turi 18" Extension w/ Coupler
- Shop: Camco Gen-Turi RV Generator Exhaust System
- Shop: Exhaust
- Shop: Suspension Enhancement
- Q&A: Undermount Kit for Onan RV Generator
- Q&A: Specification Sheet for a Cummins Onan QG 4000i Onboard RV Generator
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Video: Manufacturer Spotlight - SuperSprings Vehicle and Trailer Suspension
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Search Results: trailer wiring
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer tires and wheels
- Article: How to Measure for Trailer Hitch Drop
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: trailer jack
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Brake Controller
- Q&A: Does etrailer Carry Furrion Chill Cube w/ Heat Pump to Replace Dometic Duo-Therm
- Video: How to Choose a Trailer Brake Controller
on Generators
