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Quick Disconnect Kit for Brakemaster Air line - Vehicle Side

Quick Disconnect Kit for Brakemaster Air line - Vehicle Side

Item # RM-921004-50
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Shipping Weight: 0.22 lbs
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Roadmaster Tow Bar Braking Systems - RM-921004-50
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Call 800-298-8924 to order Roadmaster accessories and parts part number RM-921004-50 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Quick Disconnect Kit for Brakemaster Air line - Vehicle Side. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (13)
  • Q & A (2)
  • Photos
  • Why etrailer?

Roadmaster Accessories and Parts - RM-921004-50

  • Tow Bar Braking Systems
  • Quick Disconnects
  • Roadmaster


  • Limited Lifetime Warranty


  • Fits Roadmaster BrakeMaster Air line
  • Male fitting with L-shaped bracket
  • Includes chain with weather cap

921004-50 Roadmaster Quick Disconnect for Air Line

Customer Reviews

Quick Disconnect Kit for Brakemaster Air line - Vehicle Side - RM-921004-50

Average Customer Rating:  5.0 out of 5 stars   (13 Customer Reviews)

- RM-921004-50

Excellent parts 733895

- RM-921004-50

Easy order. Fast delivery. Rigging up a toad. Pictures to come.......... Maybe. 696733

- RM-921004-50

Not was the part EXCELLENT and exactly what we needed they shipped it to a campground we were headed to. We were on a trip across the country and did not want to go without brakes on the tow vehicle. Thanks to everyone for helping us out! 609640

Product is still working GREAT!!
James W - 03/03/2020


- RM-921004-50

Works perfectly and easy install. 589857

- RM-921004-50

Product arrived in time and was exactly what I needed. 492168

- RM-921004-50

Super fast order shipping. 458266

- RM-921004-50

did the job graet 438039

- RM-921004-50

TOAD connection for Roadmaster Brakemaster. Easy safe connection for air brake line. The most difficult part is finding an out of the way location on the TOAD that still allows one to easily connect and/or disconnect the hose. 345024

- RM-921004-50

Product is of excellent quality and just what I needed. Will be installed on my 06 Tacoma that will be towed behind my motorhome. I always shop with confidence at etrailer. 331297

- RM-921004-50

The part was exactly what I needed, and at a good price (shipping included) and the service was the best. Quick and easy. Thank you 294997

- RM-921004-50

Excellent service! 283219

- RM-921004-50

This is a very high quality fitting and goes on the towed vehicle or trailer (the tag says Car side). This is a male fitting that is open to air passage unlike the female that has a check valve. If you use it on the car side the compressor will run freely every time you apply the brakes when not towing a trailer/vehicle causing premature compressor failure. If you use the female on the trailer side and the male pops out during hard braking (this has happened to me once) the brakes wont release because of the female check valve and by the time you realize something is wrong and stop your rig, the tires could be blown or worse... I hope this long review helps some one down the road. Thanks Ralph (who's been doing this a long time) Winstead 101597

It is working great with no problems. I would recommend this fitting to all..
Ralph W - 09/27/2014


- RM-921004-50

My brake master uses this on the trailer side as I will be installing it on the trailer side per brake master instructions.. 101378


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Info for this part was:

Expert Research:
Jameson C
Updated by:
Isabelle B

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