bing tracking image
Q & A Icon

Replacement Thumb Lock Assembly for RV Compartment Doors  

Updated 11/02/2026 | Published 10/31/2026

Question:

Where can I get a thumb lock assembly for a standard black access door?

0

Expert Reply:

You can find them here Lamonte. We have few options for thumb locks that fit standard access doors. I have listed them below by the cylinder length:

1-1/2" - Weather-Resistant Compartment Lock item # RD65MR

1-1/8" - Weather-Resistant Compartment Lock item # RD45MR

7/8" - Weather-Resistant Compartment Lock item # RD95MR

5/8" - Weather-Resistant Compartment Lock item # RD35MR

To determine which thumb lock you need you would want to measure from the back of your access door's lock face to the base of the threaded body and the diameter of the hole that the latch fits into to pick out a replacement.

What kind of RV do you have and what kind of access door are you replacing the lock on? Feel free to answer this and throw in any other questions you have, where it says Add Comment.

expert reply by:
0
Jerred H
Compartment Lock
Compartment Lock
(click to enlarge)
Compartment Lock
Compartment Lock
(click to enlarge)
Lamonte S. profile picture

Lamonte S.

11/2/2026

I have the plastic thumb lock piece that pushes into the hole in the door.

Jerred H. profile picture
Etrailer Expert

Jerred H.

11/2/2026

@LamonteS We have a couple of those styles of locks that fit the B&B multi purpose hatch doors only like item # BM52MR. Replacement Plastic Turn Lock for B&B RV Hatches item # BM56GR in Black or item # BM36GR in White.

Product Page this Question was Asked From