Brake Line Routing May Cause Wear and Fluid Leak – Braun Northwest – 2019-2020 RAM 4500/5500

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January 13, 2021 NHTSA CAMPAIGN NUMBER: 21V008000

Brake Line Routing May Cause Wear and Fluid Leak

A worn rear brake line may leak fluid, resulting in a partial or complete loss of the rear brakes, increasing the risk of a crash.


NHTSA Campaign Number: 21V008

Manufacturer Braun Northwest


Potential Number of Units Affected 23



Braun Northwest (Braun Northwest) is recalling certain 2019-2020 RAM 4500/5500 vehicles equipped with Liquid Spring rear suspension systems. In the affected suspension systems, the rear brake caliper flexible line may have been routed so that it contacts a suspension component, possibly causing excessive wear and a loss of rear brakes.



Braun Northwest will notify owners, and dealers will install a repair kit to each rear caliper and modify the rear brake caliper flexible line mounting. Any worn rear brake caliper flexible lines will be replaced as needed, free of charge. The recall began June 8, 2020. Owners may contact Braun Northwest customer service at 1-360-748-0195.



Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to


Important Safety Recall

NHTSA Recall Number: 21V-008

Date: April 1, 2021

Subject: RAM Rear Brake Caliper Flexible Line Modification Safety Recall Notice


Dear North Star Ambulance Owner,


This notice is being sent to you in accordance with the requirements of the National Highway Traffic and Motor Vehicle Safety Act.


LiquidSpring LLC has determined that a defect which relates to motor vehicle safety exists in a component of certain LS suspension systems installed on 2019-20 model year RAM 4500/5500 cab chassis, and only suspension systems installed on the above chassis are included in the safety recall.


The affected system component is the rear brake caliper flexible line. The routing of the rear brake caliper flexible lines during the installation of the suspension kit may be causing brake caliper flexible line wear due to contact with a suspension component(s). Continued vehicle use with the rear brake caliper flexible line contacting suspension component(s) may result in partial or complete loss of rear service brakes which could cause damage to the chassis and/or other vehicles, and possibly result in a crash.


You are receiving this notice because our records indicate that you may have purchased a vehicle equipped with an affected LS suspension system. We recommend that vehicle operator(s) be aware of any abnormal brake pedal feedback or reduced braking ability and that the rear brake caliper flexible lines should be inspected for any leakage. If any wear is found on the rear brake caliper flexible lines (not the protective spiral wrap), do not drive the vehicle.


The affected suspension systems have a serial number range 2007563 — 2013191. The suspension system serial number may be found on the serial number plate located on the driver side front frame hanger of the suspension. See Figures 1 & 2 for the location and view of the serial number plate.


The LiquidSpring contact information is as follows:

Phone: 765-474-7816 Ext. 1 for Customer Service – 8:00 a.m. -5:00 p.m. EDT



Braun Northwest contact information is as follows:

Phone: 360-748-0195 or 800-245-6303 Service hours are 7:00 a.m. – 3:30 p.m. PST


If LiquidSpring or Braun Northwest fails, or is unable, to arrange service as described above without charge, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590 or call toll-free Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153); or go to




Jim Braun – Vice president


4 Affected Products


RAM 4500 2019-2020
RAM 5500 2019-2020


5 Associated Documents

Defect Notice 573 Report

RCLRPT-21V008-5530.PDF 217.386KB



Recall Acknowledgement

RCAK-21V008-2850.pdf 245.266KB



Recall 573 Report- Amendment 1

RCLRPT-21V008-6364.PDF 217.484KB



Recall Quarterly Report #1, 2020-2

RCLQRT-21V008-8087.PDF 211.129KB



ISSUED Owner Notification Letter(Part 577)

RCONL-21V008-5157.pdf 1322.516KB



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