Mount-It! MI-429 Lockable RV TV Mount
- Fits 19 to 43 inch TVs up to 33 lbs, VESA up to 200x200mm
- Tilts +5 to -15 degrees and swivels 90 degrees each way
- Extends 15.3 inches, retracts to 2.4 inches
- Dual wall plates move the TV between indoor and outdoor spots
- Rust-resistant aluminum, built for RVs, campers, and boats
- Toothed locking arm, must be fully tightened to stop road wobble
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A lockable, full-motion mount for RV and camper walls that fits 19 to 43 inch TVs and moves between indoor and outdoor plates, though every joint screw must be fully tightened to stop road wobble.
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ASIN: B01F2OZ0VMModel: MI-429Category: TV Mounts
Overview
A full-motion arm built from rust-resistant aluminum carries 19 to 43 inch TVs on RV, camper, and boat walls, tilting from +5 to -15 degrees and swiveling 90 degrees each way. Dual wall plates let the same TV detach and move between an indoor and an outdoor mounting spot.
Being able to relocate the same TV from an indoor wall to a covered outdoor spot is the real selling point for RV owners. The mount's small size limit, just 43 inches and 33 lbs, keeps it out of range for anyone wanting a larger camper TV.
Who it's for
RV and camper owners who watch TV both inside and on a covered porch or awning area benefit most from the dual wall plates. Anyone with a larger TV or a fixed home installation should choose a different mount.
Pros and cons
- Moves between indoor and outdoor wall plates
- Rust-resistant aluminum for RV or marine use
- Full tilt, swivel, and extension range
- Lifetime US-based support and warranty
- Only fits up to 43 inches and 33 lbs
- Needs both screws tightened at every joint or it wobbles
- Small VESA limit of 200x200mm
Performance notes
The toothed locking arm is what keeps the mount from rattling loose on rough roads, but only when both the outer thumbscrew and inner Allen screw are fully tightened at each joint. Aluminum construction resists the rust and vibration that steel mounts face outdoors, while the dual wall plate system lets the same bracket detach and reattach at a second location.
Specifications
| Brand | Mount-It! |
|---|---|
| Model | MI-429 |
| Dimensions & fit | |
| Minimumsupported Screen Size | 22 inches |
| Maximumsupported Screen Size | 42 inches |
| Construction & materials | |
| Color | Black |
| Enclosure Material | Aluminum |
| Compatibility & installation | |
| Mounting Type | RV Wall Mount |
| Compatible Devices | RVs, Mobile Homes |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Movement Type | Tilting |
| Number Of Items | 1 |
| Mfr Part Number | MI-429 |
| Maximum Tilt Angle | 55 degrees |
Frequently asked questions
What size TV fits the Mount-It! MI-429?
TVs from 19 to 43 inches up to 33 lbs with a VESA pattern up to 200x200mm.
Can I use this TV mount both indoors and outdoors in my RV?
Yes, it ships with dual wall plates so the same TV can move between an indoor and outdoor spot.
Why does my mounted TV wobble on the road?
Both the outer thumbscrew and inner Allen screw at each joint need to be fully tightened; a loose screw causes the wobble.
Is this mount rated for boats?
Yes, Mount-It! lists it for RVs, campers, trailers, trucks, and boats, built from rust-resistant aluminum.