Oil filler cap

[Calfroper]

I have a 2019 Newmar 3927 Gas V10 Class A and lost the oil filler cap. Any idea where I can find a replacement. It takes a special cap since the filler tube extends from the engine to the front firewall

 

[Texas Clodhopper]

I would start by calling Newmar parts. With luck, they will give you a part number, and you can source it locally.

 

[SGilbert]

If that doesn't work, go to an auto parts store and let them figure it out with a variety of caps.
It's not like a gas cap; no need to pressurize or vent.

 

[AbdRahim]

O’Reilly seems to be good with f53 chassis parts