What Size Hole to Cut When Installing SmartPlug Power Inlet

Updated 12/17/2025 | Published 12/15/2025

Question:

What diameter hole do you recommend for a new install in the wall of my RV?

asked by: Bob

Expert Reply:

Hey Bob, when installing the SmartPlug RV/Marine Data Port Inlet # SM36MJ you would want to use a 3 inch diameter hole saw. Do

expert reply by: Jameson C

Bob

12/15/2025

Thanks Jameson! That seems big but that's what I'll use!

Jameson C.

12/15/2025

@Bob Do you have the plug already and do you happen to have hole saws?

Bob

12/16/2025

I received the plug yesterday but need to purchase a hole saw for the install.@JamesonC

Jameson C.

12/16/2025

@Bob right on! Yeah 3 inch is the correct size for data ports like this.

See All (4) Replies to Bob ∨

Joe

12/17/2025

I replaced the existing coax cover on my 2023 Airstream with the Smartplug. I use it for my Starlink, which uses the RJ45 plug. I didn't need to cut a hole in the camper, because the old cover was the same size. The screw pattern was the same too. It works great, it's water proof and matches the other Smartplug that has the power coupler. My camper is in storage, so I can't get a picture. It was a bit pricey, but I will never need to replace it, it's extremely durable. Thats worth the money to me.