Replacement 3/8" Vacuum Check Valve for Roadmaster InvisiBrake Flat Tow Brake System

Question

Question:

I have an Invisibrake that I purchase about seven years ago. While having my car serviced a tech broke the vacuum check valve 3/8. I just want to confirm that Item # RM-452141 is in fact the replacement part.

asked by: Eric S

0

Expert Reply:

Yes, the Replacement 3/8" Vacuum Check Valve # RM-452141 is the correct replacement for your Roadmaster InvisiBrake Flat Tow Brake System # RM-8700.

expert reply by: Bud M

0

Answer 1

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 2

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 3

Both the Roadmaster and Blue Ox tow bars are great options. But if it was my decision to make I would go with the Blue Ox Avail part #BX7420 as we have found that the Blue Ox tow bars are a little easier to connect and disconnect from. Also this tow…

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Answer 4

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 5

To install a Redarc Tow Pro Liberty in your 2023 Toyota Tacoma Sport you will need the following parts: Redarc Tow-Pro Liberty Brake Controller item #RED24FR Plug-and-Play Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers item #RED99FR…

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Answer 6

Hey Kelvin, welcome back. To flat tow a 2026 Ford Maverick with your Demco Commander II Tow Bar item #DM9511012, I recommend the following parts: Baseplate Kit - Demco Tabless Base Plate Kit item #DM38CV Wiring Harness - Roadmaster Diode 7-Wire to…

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Answer 7

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 8

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 9

Hi JD; the Furrion Chill Cube #FR49TD air distribution box has a vent on it you can open and close. See the picture attached below. When it is closed it forces more of the air through the ducted system. Assuming you have a ducted system you will need…

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Answer 10

Gladly! The difference between the Blue Ox Patriot 3 Radio Frequency, Portable Braking System BRK2019 and the Blue Ox Patriot Radio Frequency, Portable Braking System #BLU37TR is that the Blue Ox Patriot 3 RBRK2019 is older, no longer available, and…

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Answer 11

Hi Ken! It looks like you have almost everything you need to set up your 2026 Jeep Gladiator Sahara for flat towing. The etrailer Invisible Base Plate Kit - Removable Arms #e98948 is a perfect fit and the etrailer XHD Non-Binding Tow Bar - RV Mount -…

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Answer 12

Hi Arthur, I took a look at your list of parts to flat tow your 2026 Jeep Wrangler Rubicon and it looks like you have almost everything you need! For the Blue Ox Patriot Supplemental Braking System part #BLU37TR, it plugs directly into a 12V outlet…

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Replacement 3/8" Vacuum Check Valve for Roadmaster InvisiBrake Flat Tow Brake System

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