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 Replacement Vacuum Check Valve for Roadmaster InvisiBrake part #RM-452141 has an arrow on the case which shows the direction of flow. The arrow will need to be pointed towards the engine which you can see in the attached photo. There is also a…

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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

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 5

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 6

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 7

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 8

When it comes to choosing between the Blue Ox Patriot #BLU37TR and the Brake Buddy Select 3 #HM39524, these systems are extremely similar in their setup and functionality. Both of these systems provide proportional braking in a compact and easy to…

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Answer 9

Hey Steve, thanks for reaching out! The Roadmaster Direct-Connect Base Plate Kit #RM87NQ fits your 2025 Ford Maverick as long as it's the Hybrid model that doesn't have the engine block heater. It doesn't come with the 6-Pin connector,…

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Answer 10

Hey Dan, I can definitely help you out! For a complete setup you will need the tow bar, base plate kit, safety cables, wiring, and a brake system. I recommend the following: -Blue Ox Base Plate Kit #BLU94ER -Blue Ox Avail Non-Binding Tow Bar #BLU28QV…

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Answer 11

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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Answer 12

Hey, Skip! Happy to help get your new Jeep set up for flat towing. There is going to be a list of parts, so I'll go ahead and list them all below for ya. Blue Ox Base Plate: Part #BX1139 Blue Ox Avail Non-Binding Tow Bar: Part #BX7420 Demco…

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

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