90-degree tailpipe exhaust kit for RV QG 5500 and 7000 series generators including HGJAA and HGJAB models. Includes tailpipe, clamp, and hanger. Connects to 1-3/8" O.D. downtube. Can be cut to length or extended to fit your installation. 1-year limited warranty.
The Cummins Onan 0155-3481-02 is a 26-inch, 90-degree exhaust tube kit designed for RV QG 5500 and 7000 series generators — including gasoline, EVAP, LP, and EFI variants — and their HGJAA and HGJAB model counterparts. A tailpipe is required at installation on all of these generators, which are equipped with a built-in USDA Forest Service approved spark arrester muffler.
The 90-degree bend allows the tailpipe to route from the generator's vertical downtube and exit horizontally through the RV floor or side panel. The 26" length can be cut to a shorter length with a pipe cutter to suit your specific installation, or the kit can be used in conjunction with extensions to reach longer runs. The underfloor mounting kit is recommended for underfloor installations that attach directly to the RV floor or floor supports.
Includes 26" 90-degree tailpipe, one clamp, and one hanger — everything needed to connect the generator exhaust to the RV exit point
The 26" pipe can be cut shorter to fit your specific installation — or extended to reach longer runs; use with additional pipe extensions as needed
Designed to connect directly to the 1-3/8" outer diameter generator downtube on all compatible HGJAA and HGJAB model generators
Designed and tested specifically for RV generator installations by Cummins Onan — ensures proper fit and safe exhaust routing
A tailpipe is required on all compatible generators at installation. These generator sets are equipped with a built-in USDA Forest Service approved spark arrester muffler — the tailpipe completes the exhaust system and routes exhaust gases safely away from the RV. Underfloor installations: Use the underfloor mounting kit (sold separately) for installations that attach directly to the RV floor or floor supports. Pipe length: The 26" tailpipe can be cut to a shorter length as needed. If your installation requires a longer run, additional pipe extensions are available to add length beyond 26". Check codes: Verify your installation meets all applicable RV standards, state, and federal codes regarding exhaust routing before completing the installation.
Included: • One (1) 26" 90-Degree Tailpipe (1-3/8" O.D.) • One (1) Clamp • One (1) Hanger • Installation Directions NOT Included (may be needed): • Underfloor Mounting Kit (for underfloor installations) • Pipe extensions (if run exceeds 26") • Pipe cutting tools
Backed by a 1-year limited manufacturer's warranty. Cummins Power Generation warrants this product against defects in materials and workmanship. Keep purchase receipt and installation date on file for warranty service.
All listed models use the 1-3/8" O.D. generator downtube that this exhaust kit connects to. Confirm your generator's model code before ordering. Contact Cummins Onan if you are unsure whether this kit fits your specific installation.