Tow Mirrors and Other Accessory Recommendations for Towing with a for 2020 MB GLS450

Question

Question:

Hello Im new to towing a 25 foot Airstream with my new 2020 MB GLS450 that has the tow package can you please suggest: Tow mirrors Trailer tire monitors Rear view camera Anything to line up the hitch Trailer brake monitor Trailer leveling kit its a 25ft Airstream Anything else youd recommend to make it easier for a newbie. Thank you

asked by: Tony E

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Expert Reply:

That is a bit of a loaded question so I'll try to make my list condensed, but we do have everything to help you feel comfortable while towing your 25' Airstream trailer with your 2020 Mercedes-Benz GLS450.

While we haven't test fit any towing mirrors on a GLS450, the K-Source Universal Mirrors # KS3891-2 should work just fine as they fit just about any side mirror out there that is within 4-1/2" - 11-1/2" tall. These clip on the mirror house and then have protection wherever there will be contact to protect the vehicle.

For a tire monitor system I recommend the TST TPMS # TST-507-FT-4-C because it comes with 4 flow through sensors so you don't have to remove them when you need to add air to your trailer tires. It comes with a color display and a special tool for installation to help deter theft.

It is my understanding that your GLS450 came with a reverse camera since you have the tow package so you should be okay for lining up the hitch, but when it comes to a backup camera system I really like the Rear View Safety # RVS-062710 which can be paired with the Tow Kit # RVS-2133. This is a wired option so if you'd rather have wireless then the Furrion Vision S # FCE48TASL-05 is the way to go.

To utilize your trailer brakes I recommend the Curt Echo # C51180 because it plugs right into the 7-Way on your MB and then you can make adjustments via an Apple or Android smart device. This means you don't have another component to keep track of since the monitor is on your phone. When you aren't towing you can easily store the Echo in your glove box.

When it comes to a level towing setup, nothing works better than a weight distribution system. Your 25' Airstream should weight about 5,000 lbs so the Reese Strait-Line # RP66084 is my recommendation as it has some of the best sway-control integrated into it. This has a tongue weight range of 600 lbs - 1,200 lbs which should be right where you want for your system.

Please note that you need to remain under the weight rating for your vehicle/trailer hitch and also make sure that you have the trailer loaded so that the tongue weight is 10-15% of the weight of the loaded trailer. You can use a tongue weight scale like part # e99044 to make sure everything is loaded correctly each time you get ready to travel. You just need a 2" # A-90 or 2-5/16" # 19286 hitch ball to complete this towing setup.

I've attached some videos and helpful articles that you can also check out!

expert reply by: Jon G

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Answer 1

We have the Curt Echo Mobile Wireless brake controller part #C51180 which would work great with your 2022 Mercedes Benz GLS 450 that has a factory 7-way. Basically you'd just need to plug this into the 7-way and once synced to your smart phone…

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Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 3

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 4

While we may have an option for you, we do not have the exact specs on your Allis grease seal part number 5013 29772. However, with the 1.6" ID and 2.5" OD measurements you provides, that is very close to our #58846. This particular grease…

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Answer 5

The correct replacement for a Demco Master Cylinder 05680-C is the Replacement Master Cylinder part #5650. I spoke with Demco to confirm this for you.

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Answer 6

You will need the Red LED Trailer Clearance or Side Marker Light #328-K-52 or Amber LED Trailer Clearance or Side Marker Light #328-K-51 for your 2018 Forest River Sunseeker motorhome. These lenses have the same Top Command SAE-AP2-16 markings on the…

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Answer 7

The AL-KO trailer hub part number 8700 that you have is a 3,500 lb trailer hub/drum with a 5 on 4-1/2 inch bolt pattern. Based on that the #AKHD-545-35-EZ-K is the correct fit and would work great.

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Answer 8

We have a really great kit that comes with everything you'd need to convert your 2021 Vanleigh Pinecrest 335RLP from tandem 6k drum brakes to electric over hydraulic disc brakes with the HydraStar Disc Brake Kit w/ Actuator for Triple Axle…

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Answer 9

The old version of the #HBA-CAM used 4 wires, but the product was updated awhile back and now uses only two wires as shown in the photo on the product description page. The white wire from the HBA-CAM would tap into the white ground wire and the blue…

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Answer 10

Brake systems are not dependent on the hub bolt pattern. So you can use the Electric Trailer Brake Kit #AKEBRK-7-SA for 12 inch hub/drums or #AKEBRK-35-SA for 10 inch hub/drums. Then use #10-1-1 wire sold by the foot for your brake magnet wiring.…

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Answer 11

What you're going to need is two of the transfer switches in that case. I have attached a diagram from Furrion that shows you how you're going to need to hook the two transfer switches #F30ATS up: -one to the other, then one branching off to…

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Answer 12

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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