Forum Discussion

ezgoin's avatar
ezgoin
Explorer
Aug 13, 2020

Onan exhaust hangers don’t last

I had to replace the Onan exhaust hangers several years ago when the exhaust dropped off while driving. Now, just 3 years later, 2 of the 3 hangers have broken again. The rubber part of the hanger appears to to just rot away, maybe because of the Arizona heat. The weight of the exhaust pipe also may be a factor in the rubber breaking.

Wouldn’t a full metal support strap be better? Are there any available that are compatible with the Onan exhaust?

Thanks,
Bill
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    First the hangers are standard automotive products you can get replacements at Auto-Zone Discount auto. and I suspect Wal*Mart (never looked) but they are standard.

    The metal around the pipe. then a fiber/rubberized-fiber/ metal to the body is standard not just vibration but HEAT isolation is provided. 've done all metal on occasions but it's not recommended because of the HEAT isolation.
  • bukhrn's avatar
    bukhrn
    Explorer III
    I just replaced mine after 13 years, but that was my own fault, got too close to the porch steps on the S&B, and caught the end of the pipe.:S
  • MountainAir05 wrote:
    My first one last about 5 years. The replacement came from a auto parts store and its been on there 15 years. It looks like maybe a tire type laminated material. Without some flex you going to get breakage on metal to metal connectors.

    Same with mine. Original only lasted about 2 years. Bought the smallest one I could find at an auto parts store and 8 years later it still looks almost new,
  • My first one last about 5 years. The replacement came from a auto parts store and its been on there 15 years. It looks like maybe a tire type laminated material. Without some flex you going to get breakage on metal to metal connectors.
  • Some hangers have a web material and not rubber type material.
    The exhaust along with genset needs to be mounted so stop vibration.