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September 16, 2021 NHTSA CAMPAIGN NUMBER: 21V720000
Quick Release Valve Missing/FMVSS 121
A missing quick release valve cannot ensure correct rear brake release timing, increasing the risk of a crash or injury.
NHTSA Campaign Number: 21V720
Manufacturer PACCAR Incorporated
Components SERVICE BRAKES, AIR
Potential Number of Units Affected 15
Summary
PACCAR Incorporated (PACCAR
) is recalling certain 2020-2021 Peterbilt
520 vehicles. The quick release valve on the rear brake signal hose may be missing. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, “Air Brake Systems.”
Remedy
Dealers will inspect the vehicles for a missing quick release valve, and install one if necessary, free of charge. Owner notification letters were mailed on October 7, 2021. Owners may contact PACCAR’s customer service at 1-940-591-4220 (Peterbilt
). PACCAR
’s number for this recall is 21PBK.
Notes
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 www.nhtsa.gov.
21PBK – Model 520 Dual Steer Quick Release – NHTSA ID: 21V720
Number
21PBK
Supplier
Description
Model 520 Dual Steer Quick Release – NHTSA ID: 21V720
Date
9/23/2021
What’s New
Safety Recall – Certain Model 520 trucks may have been built without a quick release (QR) valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a tri-drive or liftable tag axle and Dual Seated or Right Hand Stand-Up steering configurations. Vehicles will be inspected and, if necessary, a QR valve will be installed.
Introduction
Peterbilt has decided that certain Model 520 trucks built from 11/04/2019 through 3/30/2021 may have been built without a quick release valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a tri-drive or liftable tag axle and Dual Seated or Right Hand Stand-Up steering configurations.
Resolution
Safety Recall
Service all affected chassis that enter your dealership, even if the customer has no issue with the chassis.
1. Review the attached chassis list for your dealer code and schedule your customer(s) for service if their chassis is on the
2. If you are not using Service Management to start repair orders, review SIR for “Complete” or “In Process” next to the “21PBK” campaign code prior to performing this
3. Follow the procedures below to inspect the brake plumbing and, if necessary, install the quick release
Federal Law
It is a violation of Federal law for a dealer to sell or lease new vehicles covered by this recall until the defect or noncompliance has been corrected.
Warranty
There is no time or mileage limit for this recall. Peterbilt will pay for parts at dealer net plus applicable mark up and labor:
- 3 hours to inspect the brake plumbing to see if the quick release valve is installed. File Quick Claim 21PBKA.
-
- This labor is for inspection only. It is not applicable for trucks that require the quick release valve installation.
- 4 hours to install the quick release valve and complete the necessary plumbing for Dual Seated Drive configuration. File Quick Claim 21PBKB. This includes the inspection of the brake plumbing for the presence of the quick release valve.
- 4 hours to install the quick release valve and complete the necessary plumbing for Right Hand Stand-Up configuration. File Quick Claim 21PBKC. This includes the inspection of the brake plumbing for the presence of the quick release valve.
- File an additional claim for extraordinary circumstances, referencing A quick claim for standard labor must be filed first.
Procedure
1. Inspect the truck to see if the Quick Release (QR) valve is installed. If not installed as shown below, tilt the cab forward for access and bolt the QR valve to the washer bottle housing.
2. Using the images below, determine the correct plumbing for the QR valve and locate the primary delivery hose from the foot valve that will be routed to the QR
3. Wrap the threads of the fittings with Teflon tape and install into the QR valve as shown for the appropriate steering configuration
4. Remove the primary delivery hose from the foot valve, trim the excess if necessary and install in the outlet port of the QR
5. Cut a new section of hose to install from the QR valve inlet back to the foot
6. Avoid kinking the hoses and secure the hose bundle with cable ties.
Parts
Parts are available through PACCAR Parts.
DUAL SEATED DRIVE CONFIGURATION
Quantity | Part Number | Description |
288251BXW | Quick Release Valve | |
2 | HWC01097 | Hex Bolt |
2 | HWC03128 | Flat Washer |
G38-1021-0608 | 90 Degree Male Fitting | |
G38-1023-0608 | Straight Male Fitting | |
AP2335 | 3/8 IN Plug | |
1 foot | Source Locally | #8 Orange or Black Nylon Brake Hose![]() |
As Needed | Source Locally | Teflon Tape |
As Needed | Source Locally | Cable Ties |
RH STAND-UP CONFIGURATION
Quantity | Part Number | Description |
288251BXW | Quick Release Valve | |
2 | HWC01097 | Hex Bolt |
2 | HWC03128 | Flat Washer |
2 | G38-1023-0608 | Straight Male Fitting |
AP2335 | 3/8 IN Plug | |
1 foot | Source Locally | #8 Orange or Black Nylon Brake Hose![]() |
As Needed | Source Locally | Teflon Tape |
As Needed | Source Locally | Cable Ties |
2 Affected Products
Vehicle
MAKE | MODEL | YEAR |
PETERBILT![]() | 520 | 2020-2021 |
8 Associated Documents
Recall Acknowledgement
Noncompliance Notice 573 Report
RCLRPT-21V720-4896.PDF 214.273KB
Recall Quarterly Report #1, 2021-4
RCLQRT-21V720-0829.PDF 211.135KB
Recall 573 Report: November 23, 2021
RCLRPT-21V720-5673.PDF 214.406KB
Recall 573 Report: November 23, 2021
RCLRPT-21V720-3194.PDF 214.406KB
Safety Bulletin
RCSB-21V720-5081.pdf 1069.359KB
ISSUED Owner Notification Letter(Part 577)
RCONL-21V720-4839.pdf 206.414KB
Recall Quarterly Report #2, 2022-1
RCLQRT-21V720-3696.PDF 211.237KB
Recalls Documents
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- Cross References: E5503, E-5503, A193222D2006, 01008, M3189, TDAA3222D2006, A3222L2066, 4707D, 4707Q, L3011, A193222D200, R4707, 21855, 4707R, 4707XT, HV774707QG, XSEG24707QP
- Fits 16-1/2" Diameter x 7" Wide Meritor
'Q Plus' Quick Change Brakes
- New Brake Shoes (No Core Charge)
- Shoe FMSI Number: 4707
- Has The Plus (+) Symbol In The Brake Shoe Table
- Premium 4707Q+ Brake Shoe Repair Kit: High quality materials, advanced production technology and strict quality control to ensure that our product quality is leading. Specifically designed for heavy-duty vehicles, including commercial trucks, trailers, and buses.
- Meets Industry Standards: Compliant with industry specifications, FMVSS-121 certified by LINK. Certified to comply with FMVSS 121 performance requirements and testing protocols.
- Complete Repair Kit: Includes all components needed to replace or repair brake shoes, comes with brake shoes, return springs, adjustment components, and hardware. No core charge needed, brake shoes are Brand New not remanufactured.
- High Performance: Donโt sacrifice brake performance, our high performance after market brake shoe repair kits are the best solution when your air brake system needs a reliable and affordable upgrade. They are perfectly suited for ABS
, ensuring powerful and responsive braking.
- Precision Fit: Engineered to match OEM specifications, ensuring a precise fit for your heavy-duty vehicle. This accuracy in design simplifies installation, reduces downtime, and ensures the brake shoes align perfectly with your brake drums, maximizing braking performance and safety.
- Replacement shoe/linings and repair kit
- Fits Dexter
12-1/4" x 4" P Q style air brakes
- Repair kit includes rollers, anchors, springs, and clips for 1 wheel
- Services 1 wheel (2 shoe/linings, 1 repair kit)
- Premium Brake Shoe Repair Kit: High quality materials, advanced production technology and strict quality control to ensure that our product quality is leading. Specifically designed for heavy-duty vehicles, including commercial trucks, trailers, and buses.
- Meets Industry Standards: Compliant with industry specifications, FMVSS-121 certified by LINK. Certified to comply with FMVSS 121 performance requirements and testing protocols.
- Complete Repair Kit, No Core Return Needed: Includes all components needed to replace or repair brake shoes, comes with brake shoes, return springs, adjustment components, and hardware. Brake shoes are Brand New not remanufactured, you will not be charged a core fee. You do not need to return the core.
- High Performance: Donโt sacrifice brake performance, our high performance after market brake shoe repair kits are the best solution when your air brake system needs a reliable and affordable upgrade. They are perfectly suited for ABS
, ensuring powerful and responsive braking.
- Precision Fit: Engineered to match OEM specifications, ensuring a precise fit for your heavy-duty vehicle. This accuracy in design simplifies installation, reduces downtime, and ensures the brake shoes align perfectly with your brake drums, maximizing braking performance and safety.
- ใHigh-Quality ConstructionใBuilt from premium carbon steel, our 5081 Repair Tool ensures durability and reliability. Designed for heavy-duty use, its solid build and anti-corrosion properties guarantee consistent performance during brake adjustments, making it an essential tool for maintaining tractors and trailers.
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- ใUser-Friendly DesignใFeaturing a smart design with a central hook, our tool effortlessly engages the J eye of a spring. By simply hooking the spring loop and applying pressure against the axle, it streamlines the installation process, offering convenience and ease of use for both professionals and DIY enthusiasts.
- ใEasy InstallationใDesigned for simplicity, our tool enables quick spring installation on S Cam Air Brakes without requiring additional tools such as vise grips or screwdrivers. Just hook the retaining spring loop and press it firmly onto the axle, ensuring a snug fit and reliable performance.
- ใCost-Effective SolutionใInvest in a tool that saves you both time and money. Our 5081 Repair Tool not only simplifies the brake adjustment process but also reduces the need for multiple tools. Its durable construction means you won't need frequent replacements, offering a long-term, cost-effective solution for maintaining your heavy-duty vehicles.
- THE 5081 TOOL - Made of quality, robust, solid and sturdy carbon steel. Heavy duty, anti-corrosion materials ensure high performance of the brake repair brake adjusting tools.
- FUNCTION - To safely replace brake shoes on heavy duty tractors and trailers. Good replacement for OTC 5081 air brake spring tool.
- PERFECT DESIGN - The install tool has a hook engages the spring at the J eye on the end. Simply hook the retaining spring loop and press down against the axle.
- BENEFITS - It is better using the air brake spring installer tool than using vise grips, screwdrivers to unhook the retaining springs. Easy and safe way to do the job.
- BUY WITH CONFIDENCE - You will get 1x S-Cam air barke spring snap shoes tool, and 12-MONTH WARRANTY.
- Function: Safely replace brake shoes on heavy-duty tractors and trailers
- Hook Design: This tool has a little hook that engages the spring at the J eye on the end, and the bar goes under the axle to leverage the spring out of position
- Easy to Use: Simply hook the retaining spring loop and press down against the axle.
- Material: Made of high quality steel. Corrosion-resistant & Durable Steel construction with extreme anti-wear property.
- Package Include: 1pcs Air Brake Spring Tool
- ใ Compatible for ใ: works great on tractor and trailer brakes, any heavy duty brakes!
- ใ Materialใ: Corrosion-resistant & Durable Steel construction with extreme anti-wear property.
- ใ How to Useใ: This tool makes install spring on the S Cam Air Brake a snap. No more using vise grip and screwdriver to remove brake shoes.Simply hook the retaining spring loop and press down against the axle.
- ใ Features ใ: Best choice for doing brakes in a hurry. Serve as a lever against the axle to seperate the spring loop from the brake shoe. Safely replace brake shoes.
- ใ Package included ใ: 1pcs S-Cam Air Brake Spring Tool .
- ใEssential Tools for TrucksใLT895 Truck Brake Spring Tool can easily install Eaton
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- ใEasy WorkใThis truck brake spring tool can easily install air brake shoe anchor springs. The outward-facing handle cleverly uses the design concept of a labor-saving lever, making it easier to grasp and apply pressure, allowing you to handle it alone and making the job easier.
- ใSturdy and DurableใMade of high-quality steel, high hardness, strong and durable, good corrosion resistance and rust resistance, and long service life.
- ใSlot DesignใThe slotted end on the tool always keeps the spring at the correct working angle. So you can easily connect the springs. This makes it easier to remove or install the spring.
- ใSatisfaction Guaranteeใ Provides a 100% satisfied after-sales service. If you are not satisfied with it, simply return it within 30 days. Premium Support 1 year Warranty.
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
SEOCONTENT-START21PBK – Model 520 Dual Steer Quick Release – NHTSA ID: 21V720 Number 21PBK Supplier Peterbilt Description Model 520 Dual Steer Quick Release- NHTSA ID: 21V720 Date 9/23/2021 What’s New 6′? Edit [cJ Clone Safety Recall – Certain Model 520 trucks may have been built without a quick release (QR) valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a tri-drive or liftable tag axle and Dual Seated or Right Hand Stand-Up steering configurations. Vehicles will be inspected and, if necessary, a QR valve will be installed. Introduction Peterbilt
has decided that certain Model 520 trucks built from 11/04/2019 through 3/30/2021 may have been built without a quick release valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a tri-drive or liftable tag axle and Dual Seated or Right Hand Stand-Up steering configurations. Resolution Safety Recall Service all affected chassis that enter your dealership, even if the customer has no issue with the chassis. 1. Review the attached chassis list for your dealer code and schedule your customer(s) for service if their chassis is on the list. 2. If you are not using Service Management to start repair orders, review SIR for “Complete” or “In Process” next to the “21PBK” campaign code prior to performing this repair. 3. Follow the procedures below to inspect the brake plumbing and, if necessary, install the quick release valve. Federal Law It is a violation of Federal law for a dealer to sell or lease new vehicles covered by this recall until the defect or noncompliance has been corrected. Warranty There is no time or mileage limit for this recall. Peterbilt
will pay for parts at dealer net plus applicable mark up and labor: โข 0.3 hours to inspect the brake plumbing to see if the quick release valve is installed. File Quick Claim 21PBKA. o This labor is for inspection only. It is not applicable for trucks that require the quick release valve installation. โข 0.4 hours to install the quick release valve and complete the necessary plumbing for Dual Seated Drive configuration. File Quick Claim 21PBKB. This includes the inspection of the brake plumbing for the presence of the quick release valve. โข 0.4 hours to install the quick release valve and complete the necessary plumbing for Right Hand Stand-Up configuration. File Quick Claim 21PBKC. This includes the inspection of the brake plumbing for the presence of the quick release valve. โข File an additional claim for extraordinary circumstances, referencing 21PBK. A quick claim for standard labor must be filed first. Take-off parts disposition: Destroy parts 30 days after the claim has been paid. PRWS CLAIM CODING Campaign 21PBK Campaign Safety Recall Code: Type Claim Truck Repair Type Proactive Category: Customer 029 Causal Code A1 Concern Code Corrective 12 Responsibility Camp Action Code: Code Failure 013- Causal Part 288251BXW Location 010- 008 Supplier N/A 013-183 Code 0.3 hours to inspect the brake plumbing for the quick release valve. SRT Code 013-184 0.4 hours to install and plumb the quick release valve – includes inspection for the presence of the valve. CLAIM CODING 013-010- 69 Failure 008 Work Location: Accomplished: 705 09 Failure Responsibility Type: Code: 013-183 C SRT Claim Type: Code: 0.3 hours to inspect the brake plumbing for the quick release valve. 013-184 0.4 hours to install and plumb the quick release valve includes inspection for the presence of the valve. Procedure 1. Inspect the truck to see if the Quick Release (QR) valve is installed. If not installed as shown below, tilt the cab forward for access and bolt the QR valve to the washer bottle housing. 2. Using the images below, determine the correct plumbing for the QR valve and locate the primary delivery hose from the foot valve that will be routed to the QR valve. 3. Wrap the threads of the fittings with Teflon tape and install into the QR valve as shown for the appropriate steering configuration below. 4. Remove the primary delivery hose from the foot valve, trim the excess if necessary and install in the outlet port of the QR valve. 5. Cut a new section of hose to install from the QR valve inlet back to the foot valve. Dual Seated Steer Plumbing Right Hand Stand-up Plumbing 6. Avoid kinking the hoses and secure the hose bundle with cable ties. Parts Parts are available through PACCAR Parts. DUAL SEATED DRIVE CONFIGURATION Quantity Part Number Description 1 288251BXW Quick Release Valve 2 HWC01097 Hex Bolt 2 HWC03128 Flat Washer 1 G38-1021 -0608 90 Degree Male Fitting 1 G38-1023-0608 Straight Male Fitting 1 AP2335 3/8 IN Plug Source Locally #8 Orange or Black Nylon 1 foot Brake Hose
– 1 foot As Needed Source Locally Teflon Tape As Needed Source Locally Cable Ties Quantity 1 2 2 2 1 1 foot As Needed As Needed Links Chassis List Customer Letter Authored by: PR RH STAND-UP CONFIGURATION Part Number Description 288251BXW Quick Release Valve HWC01097 Hex Bolt HWC03128 Flat Washer G38-1023-0608 Straight Male Fitting AP2335 3/8 IN Plug Source Locally #8 Orange or Black Nylon Brake Hose
– 1 foot Source Locally Teflon Tape Source Locally Cable Ties
**************************************************************************************************************
PETERBILT MOTORS COMPANY A MCIOIII. COMPANY 1700 WOODBAOOK STREET DENTON, TEXAS 76205-786-4 940-581-4000 Recall Notice: 21 PBK IMPORTANT SAFETY RECALL INFORMATION Issued in Accordance With Federal Law N**H**T*S A -U.S. Oeporment al :II ,nm. rr-z 0 –I n m IMPORTANT SAFETY RECALL October 8, 2021 Subject: Safety Recall: 21 PBK- Model 520 Dual Steer Quick Release NHTSA: 21V720 EXPIRATION DATE: NONE This notice applies to your vehicle. Your VIN(s) can be found on the bottom or back of this page. Dear Peterbilt Customer, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Peterbilt Motors Company has decided that a defect which relates to motor vehicle safety exists in certain Model 520 vehicles manufactured from 11/04/2019 through 3/30/2021. Vehicles may fail to conform to Federal Motor Safety Standard (FMVSS) No. 121 if a quick release valve was not installed. The absence of this valve could affect rear brake timing and could increase the risk of a crash. Your vehicle has been identified as being built within the date range in which the quick release valve may not have been installed. What is the problem? What will your dealer do? What should you do? A quick release valve that is required for proper brake timing may not have been installed. The brake plumbing will be inspected to see if the quick release valve was installed. If not, the valve will be installed. Contact your Peterbilt Dealer to schedule an appointment for repair. Peterbilt Motors Company has initiated this recall to remedy the issue with no charge to you. Please contact your Peterbilt dealer to schedule an appointment for these services. To find your Peterbilt dealer, please visit the Dealer Locator at www.Peterbilt.com or scan the QR code. When contacting your Peterbilt dealer, reference the Recall number and the NHTSA number. This repair may take up to 1.0 hour of labor depending on dealer scheduling. If you had this repair performed before receiving this letter, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification remedy of the problem associated with this recall. Receipts for parts and/or labor are required for consideration of reimbursement. Contact your local Peterbilt dealership for details. If you require further information about this recall, or experience any difficulty in making arrangements for this repair, please contact: Peterbilt Motors Company, 1700 Woodbrook St, Denton, TX 76205, Attn: Customer Services Department. If you conclude that Peterbilt has not enabled you to remedy this defect in a reasonable time and without charge, you may submit a complaint to: Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590, or call the toll free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to https://www.safercar.gov. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. If you no longer own this vehicle, we would appreciate your advising us of the new owner if you know their name, We apologize for any inconvenience this preventive procedure may cause and thank you for your participation in helping Peterbilt provide the highest levels of customer satisfaction and service expertise. We value your business and appreciate your ongoing loyalty to Peterbilt and its dealer network. Industry-leading quality, performance and reliability are hallmarks of Peterbilt products, and we thank you for making Peterbilt your truck of choice. Sincerely, -wt.~?~ Michelle Ponsonby Director of Customer Service Peterbilt Motors Company Our records Indicate that these vehicles are affected by 21 PBK and are owned by Scan this QR code to open the Peterbilt Dealer Locator. -,.
SEOCONTENT-END