Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket

Part Number: WM6780

In Stock

$56.15

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Wheel Masters RV Levels,Trailer Levels RV Levels - WM6780

Wheel Masters Screw-On RV Levels - WM6780

RV Levels WM6780 - Manual Levels - Wheel Masters

Show All (5) Product Images

Show Fewer Product Images

In Use/Installed

WM6780 - Screw-On Wheel Masters Graduated Levels

Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket Manual Levels WM6780

Show All (6) In Use/Installed

Show Fewer In Use/Installed

Customer Photos

Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket customer photo

Show All (7) Customer Images

Show Fewer Customer Images

Videos

Wheel Masters Level Master Trailer Bubble Level Review

Show All (1) Videos

Show Fewer Videos

Need help with installation?

Locate installers near me

The Level Master takes the hassle out of leveling your fifth-wheel trailer or camper. Large, side-to-side scale is easily visible from the cab of your truck. Additional scale helps with front-to-back leveling. Includes mounting bracket and hardware. Great Prices for the best rv levels from Wheel Masters. Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket part number WM6780 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

All Info
Reviews (211)
Q & A (0)
Related Parts
Photos

Wheel Masters RV Levels - WM6780

Features:

Easy-to-read bubble level helps you level your 5th-wheel trailer or camper when parking or using landing gear
Large scale assists with side-to-side leveling
- Each mark indicates 1" of blocking
Smaller scale helps with front-to-rear leveling
Easily visible from truck cab
Won't leak or freeze
Simple installation on your trailer's king pin box with included mounting bracket and hardware

Specs:

Application: fifth-wheel pin boxes 11-1/8" to 15-3/16" wide
Dimensions: 11" long x 2-3/4" wide
1-Year limited warranty

The Level Master is an all-in-one bubble level that assists you in leveling your fifth-wheel trailer or camper. When you arrive at the campsite, the Level Master helps you find a level spot to park your trailer without leaving the cab of your truck. The large level provides a visual of the side-to-side position of your trailer.

After you park, the Level Master helps you balance your trailer side to side while you are operating your landing gear. Each mark on the scale indicates 1 inch of blocking. So if the bubble is 1 block away from the center of the level, then you need to raise the side of your camper by 1 inch.

An additional level is built into the larger scale and comes in handy when you are leveling your camper front to rear.

Wheel Liners Level Master Bracket on Pinbox

The included mounting bracket makes it simple to attach the Level Master to your trailer's pin box.

6780 Level Master All-in-One RV Bubble Level with Mounting Bracket by WheelMasters

Installation Details WM6780 Installation instructions

Customer Satisfaction Score:

99% were satisfied with this product

1% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered

1% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered

4.6

211 reviews

5 Stars		(160)
4 Stars		(34)
3 Stars		(9)
2 Stars		(3)
1 Star		(5)

by: Tom C 04/13/2026

I really like this 5th wheel level. It is so easy to see without jumping in and out of the truck and the gradients give you a great idea of the thickness you need to level your camper. It was also very easy to install, and easy to adjust except they did not give you a recommended drill size to use to drill through the ¼” thick steel pin box. I initially drilled one hole with a 3/16” drill bit and a bit of machine oil, but I felt the bolt hole was a bit snug (and I didn't want to snap the bolt), so I redrilled the hole with a 13/64” drill bit and the bolt fit great. I also added a washer to each bolt to give it a bit more support. It is a really nice addition to our 5th wheel

Click to Enlarge

Lazer S.

4/14/2026

Glad you like it, Tom! It's always amazing how small things like this can make such a difference! ^___^ What kind of 5th wheel did you install it on?

Thomas

4/27/2026

@LazerS - Grand design 303rls

Lazer S.

4/27/2026

@Thomas Nice camper! Those ones are roomy! ^___^ Have fun out there and just let us know if there is anything we can help with down the road!

by: Melissa L 09/12/2026

Fast shipping great product

by: Gary 09/05/2026

Very nice can see it while in my truck makes life better !if something happens to it will buy again

by: Donna 07/12/2016 One Year Later

Great product. We just took a trip from Minnesota to New Mexico/Arizona and back. Made leveling the fifth wheel a breeze, done in minutes. Easy installation, just make sure you are level first.

Click to Enlarge

by: Darryl 08/26/2025 One Year Later

great put it on the front of the fifth wheel hitch, takes some of the guess work out when parking.

by: Theodore 07/04/2026

Great product

by: Roland W 05/10/2024

Have a friend who has one and saw how much it helped. I had to have one. Installation was easy except for drilling the holes in the pin box. That metal is tough. Thanks to etrailer.com for their fast delivery.

Roland W. One Year Later

5/11/2025

Still solid and works well

by: Ronald 05/23/2026

I got the package on the day I was told it would be delivered n it’s exactly what I ordered

by: Edwin 07/28/2024 One Year Later

Easy to see in rear view mirror. Enables stopping rig in optimum position.

Edwin One Year Later

7/31/2025

Mounted and can see in rearview mirror, set 5th on site, quick glance and we know which set of wheels to put one or two blocks if angle is beyond ability of autolevel.

by: Don 01/23/2020

This is the second one of these I had. The first was previously mounted on our Wildcat 5th wheel and liked it so much I put one on our recently purchased Jayco. The only reason for dropping one star, is the cheap basically license plate bolts it comes with. I drilled 13/64" holes for them since they are self-tapping and one of the heads snapped off halfway in and I had to drill it out.......arrgghh! Admittedly it was cold out so the steel was brittle but was still aggravating. Then I got smart and went to the hardware store and got some automotive body bolts and nuts to mount it since I could get the the inside (see pic).

Click to Enlarge

by: Jeff 08/21/2015

3 out of 5 only because the side mounting plates are now made out of plastic that bends and twists when tightening the mounting screws down. They used to be metal. If they were a heavier gauge of plastic it would be better. I plan on making a set of metal ones to replace the plastic once we have finished this season.

Jeff One Year Later

8/20/2016

replaced the plastic with metal after last season. seems to be holding up just fine

by: Loren 03/04/2026

great price and shipped very fast, havn't mounted it yet

by: Azbowhunter 03/15/2021

Shipping was quick, system was easy to put together and install. Works great with my Tonneau cover.

Click to Enlarge

by: Bobby 08/15/2022 One Year Later

We have been using this brand of level for some time.
I like that you can see it from the truck.

Click to Enlarge

by: Gary Hennessee 07/07/2014

Products were exactly what I expected!

Even though the level was back ordered for several days, Patrick exceeded my expectations by keeping me posted on progress and following through post delivery.

I will most certainly recommend your products and services to friends.

Gary Hennessee

Gary H. One Year Later

7/10/2015

Exceeds my expectations! Exactly what I was looking for.

by: Michael M. 07/07/2014

This level is of fair quality. Mounting brackets are plastic not metal. Mounting screws are poor quality and break when installing. The need to purchase hardened or stainless screws is a must. I will use this one until it breaks or leaks. Then I will buy a different brand.

by: Mark 01/16/2021

Nice level, mounts easy on the fifth wheel hitch.

Mark K. One Year Later

1/16/2022

Love it, makes finding a level place to park so much easier. Going to have to buy another one, just sold the trailer I put this one on!!

by: Greg 06/13/2023

Great level and easy to see from drivers seat. Fairly easy installation but screws suppled with level will not work. You will need to get 4 really good self tapping screws because the king pin is really hard metal.

by: Kevin K. 03/30/2014

Would have given higher rating, but mounting brackets are plastic not metal. Also mounting hardware sheared of easily.

by: Star D. 08/05/2016

Finally got around to mounting it and we love it! Of course not as accurate as a small bubble but gets you close enough to level using the jacks. Very happy with the company and the shipping. Thanks!

by: Stacey 08/21/2014

Happy with the Wheel Masters level but I was surprised that the mounting brackets are made out of plastic. We will see about the durability.

by: Troy D 10/24/2014

I have read other reviews about this product, if you use a drill and over tighten your brackets you will break them, don't be superman and don't over tighten the self tappers and your going to be fine. Take your time and pre-drill first with 1/8" drill bit. Great product, just make sure you level out your rv first and take your time. Instructions are OK but do not forget to adjust your bubble for your front to rear with the Phillips head screw on the top of the level. I would buy this product and recommend it to all who ask.

by: Don 01/23/2020

This is the second set I have bought as we had them on our Wildcat when we traded it in for a Jayco. They literaly take seconds to install, are strong and work perfectly with Andersen Jack Blocks

by: Richard 09/06/2025

once again great as always service and delivery.

by: Lenny M 07/08/2014

The right product at the right price. Makes leveling a 5th wheel easier from the drivers seat. I just wish delivery was in time for my trip.

211

true

Show More Reviews

See what our Experts say about this Wheel Masters RV Levels

Do you have a question about this RV Level?

Does the 5th Wheel Pin Box Mounting Bracket Require Drilling?
Yes, it does. The 5th Wheel Pin Box Mounting Bracket for Wheel Masters Level Master Trailer Bubble Level item # WM6700BK does require drilling. It comes with the necessary screws to install on your pin box. You would need to check with the manufacturer of your pin box to see if drilling into it would affect your warranty. To purchase the mounting bracket and level together you would want the Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket item # WM6780.
view full answer...
How to Determine Correct Height Setting on Demco Hijacker Autoslide
Thank you for providing those measurements! Since your 5th wheel hitch height is 47 inches, subtracting the bed height of 39 inches gives us the 8 inches you mentioned which is technically the setting you would need to use on your Demco Hijacker Autoslide # DM8550034. This poses a problem since the HIjacker is limited to a height adjustable from 15-1/4 to 18 inches tall. If your measurements are correct, this means that in order to tow your 5th wheel trailer with your 2019 GMC Sierra 2500...
view full answer...
Trailer Level With Fifth Wheel Pin Box Brackets
I do have an option for you but the Camco AccuLevel Trailer Bubble Level part # CAM25563 does not come with brackets or hardware to install. I recommend Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket part # WM6780. The level comes with the mounting hardware needed. I have attached a photo for your reference. If you do not want to drill into the pin box, I recommend Hopkins Never Fade Trailer Bubble Level Set part # HM08526 that is a stick on option.
view full answer...
Maximum and Minimum Span of Wheel Masters Level Master Trailer Bubble Level Mounting Bracket
5th Airborne pin box # 5AB-E7920 fits in place of the Leland 7920 pin box which is 14 inches wide. The Wheel Masters Level # WM6780 has an adjustable bracket that will go up to 15-3/16 inches wide so it will fit!
view full answer...
Will Wheel Masters Level Master Trailer Bubble Level Fit Reese Pin Box
Yes, the Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket # WM6780 that you referenced does fit Reese pin boxes.
view full answer...
Can Hopkins Trailer Hitch Level be Mounted on Bumper of 5th Wheel
Sure, you can use the Hopkins Trailer Hitch Level with Cover # HM09715 on the bumper of your 5th wheel if you like, though that may not provide the best information in terms of leveling, and there is a much better option for a 5th wheel. Instead of the hitch level I recommend the Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket # WM6780. The Level Master goes on top of your pin box which you can very easily see from your truck so you don't have to...
view full answer...
Is the Plastic Bracket for the Wheel Master Level Master UV Protected
I spoke with my contact at Wheel Masters about the Level Master, # WM6780, and the plastic bracket is UV protected. My contact also said that the engineers tell her that the bracket is unbreakable, I suppose similar to the unbreakable combs. But if you were to break it they would send you out a new one.
view full answer...
What Are Mounting Brackets of Wheel Masters Level Master Trailer Bubble Level WM6780 Made of
The mounting brackets for the Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket # WM6780 are made out of UV-protected plastic. The plastic is really durable though, and is designed to last, so it isn't going to just break apart, and won't corrode like a metal bracket would. I have added a link below to a video review for you to check out as well of the Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket # WM6780.
view full answer...
What Is The Slotted Section In Bracket For Wheel Masters Level Master Trailer Bubble Level Used For?
You are correct, the slotted section of the bracket on the Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket # WM6780 is another option for mounting the level to your pin box. I do not recommend using the slotted section as the only rear mount since as you mentioned it can cause the level to move if it is bumped, but instead I recommend using the two stationary holes as shown in the included video.
view full answer...

Do you have a question about this RV Level?

Info for this part was:

Edited by:

Leah B

Expert Research:

Michael H

Expert Research:

Jameson C

Written by:

David L

Video Edited:

Jacob T

Updated by:

Laura H

Video by:

Dustin K

Installed by:

David F

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.