NHTSA ID Number: 10178149
Manufacturer Communication Number: TCH-022-005
TSB/Document Date: 2020-08-07
Summary
Bendix
Spicer Foundation Brake LLC (BSFB) has discovered that a small number of new-gen lightweight steer axle drum brakes installed on PACCAR® (Peterbilt® & Kenworth®) vehicles built between 2015 - 2019 may have cracks in the spiders (mounting plates). Vehicles that fall within these parameters, or have been serviced with the part numbers listed below, must be inspected for the possibility of cracked spiders. Use the inspection procedure detailed below. Vehicles with air disc brake steer axles, or drum brake part numbers not shown below, are not a part of this bulletin.
Technical Bulletin
Bulletin No: TCH-022-005
Subject:
Effective Date: 7/20/2020 through 7/20/2021
Cancels: N/A
Page: 1 of 2
PACCAR New-Gen Lightweight Steer Axle Drum Brake Inspection
®
Bendix Spicer Foundation Brake LLC (BSFB) has discovered that a small number of new-gen lightweight steer
axle drum brakes installed on PACCAR® (Peterbilt® & Kenworth®) vehicles built between 2015 - 2019 may have
cracks in the spiders (mounting plates). Vehicles that fall within these parameters, or have been serviced with
the part numbers listed below, must be inspected for the possibility of cracked spiders. Use the inspection
procedure detailed below. Vehicles with air disc brake steer axles, or drum brake part numbers not shown
below, are not a part of this bulletin.
Bendix® Spider Part No.
Vehicle Make
Model
Build Year
All
2015-2019
OE
Service
K125382
K125382N
K125383
K125383N
PACCAR®
Part No.
G1-545* & G1-515*
Service with Bendix
Spider & Pin Assembly
K124778N (LH)
K124779N (RH)
Inspection Procedure:
Note: This procedure must be performed on both steer axle brakes for the vehicles shown above.
1. Lift the hood of the vehicle for better visibility of the brake assembly.
2. Clean any loose debris (i.e. dirt or mud) from around the brake assembly. If the vehicle is equipped with a
dustshield, pull back the dustshield to gain visual access to the top edge of the spider and pin assembly. To
pull the dustshield back, first loosen the two dustshield screws adjacent to the ABS wheel speed sensor as
shown below.
Front of Vehicle
Dustshield Screws
Brake Assembly
(Dustshield Not Present)
3. Visually inspect the brake spiders for the presence of cracks as shown below.
Crack Present
Inspect for Cracks
Brake Spider
Dustshield
Bulletin No: TCH-022-005
Effective Date: 7/20/2020 through 7/20/2021
Cancels: N/A
Page: 2 of 2
4. If no cracks are found, return the vehicle to service and perform the Routine Service Inspection as indicated
below.
If cracks are found in either spider, each cracked component must be replaced with the appropriate service
part (as identified on page 1 of this bulletin). Although friction material is always replaced across an axle, it is
not necessary to replace components such as brake spiders if they do not show any signs of cracks. Each
wheel end is unique and not all are prone to cracking. For example, if the right steer axle spider is replaced,
the left does not need to be replaced unless cracks are found. Do not return the vehicle to service until the
appropriate repairs are made. To obtain the correct service parts see Order Replacement Parts below.
Part Number
Location
(K125382 or K125383)
Brake Spider
Order Replacement Parts:
1. If cracks are found in the brake spider, locate the part number on the spider as shown above and use the
table on page one to identify the corresponding Spider & Pin Assembly replacement.
2. Contact your local PACCAR® dealer to order the appropriate service replacement parts.
Note: The new replacement spiders (part numbers K124778N and K124779N) are manufactured from
a thicker material. This material difference does not impact the interchangeability of the service
replacement spiders, nor does having a replacement spider on one side of the axle and the original
spider on the other side of the axle.
Installation Procedure:
1. Replace the brake spider(s) as determined in the inspection.
2. Reinstall all of the remaining components of the brake assembly, including shoes and drums, in accordance
with the normal service protocols outlined in Bendix service manual BW7258. Ensure all hardware is installed
per the OEM requirements, replacing where required, and note the specific torque requirements from the OEM.
3. Submit a warranty claim for the parts and labor via your PACCAR service network. The standard labor
allowance / repair time is shown below for various hub types and model numbers.
Hub Type
Standard Labor
Allowance / Repair Time
ConMet® Preset Plus®
1.6 Hours
T440, T470, T680, T800,
T880, W900, W990
365, 367, 382, 384, 386,
389, 567, 579, 587
Spicer® LMS™
1.9 Hours
T270, T370
330, 337, 348
4. Return the vehicle to service and perform the Routine Service Inspection indicated below.
Routine Service Inspection:
All brakes must be inspected on three (3) month intervals for any signs of defect or damage, including cracks.
This periodic inspection remains a requirement for ensuring proper brake function throughout the life of all
Bendix® drum brakes. In keeping with these service procedures – as published in Bendix service manual
BW7258 – a thorough visual inspection for brake wear, loose fasteners, broken parts, and/or obvious damage
should be made each time the brake is serviced or the wheel and drum is removed. In no case should the visual
inspection interval exceed three (3) months of service. Refer to the Spider Inspection of this service manual for
additional service information.
Service manual BW7258 and all other Bendix literature is available for download in our Document Library at
bendix.com located under the Quick Links tab.
Rev. 000 © 2020 Bendix Spicer Foundation Brake LLC • All Rights Reserved
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Provides an extra margin of safety in extreme braking...
- Mix of polyglycol ethers ensures hot brake-system operation...
- Excellent for ABS, disc and drum brake systems
- Delivers braking power when needed by avoiding a spongy...
- Both wet and dry boiling points exceed the minimum...
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: TCH-022-005
Replacement Service Bulletin Number:
MFR Communication Date: 2020-07-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES, AIR
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used escaner automotriz device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way, and we’ll provide a solution within 24 hours. THINKSCAN 689BT Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- [Good News] THINKSCAN 689BT is the most competitive automotive scan tool to date, offering wireless updates with no subscription fees(valued 500Buc.ks) . With all the features of THINKTOOL PD8,PRO, built on Android 10 platform with 4-core CPU, 4GB RAM
and 64GB ROM, serving up to 5X faster than older MAX/MINI/PLUS vehicle scanners escaner automotriz, no more slow and delayed feedbacks, it's time to update your garage tool. - [Big Money Saver] Premium THINKSCAN 689BT Wireless Diagnostic Scanner Escaner Automotriz, save up to 400USD per year, includes all useful features: Full bi-directional controls, ECU coding, 34+ services, OEM all system diagnostics, Worldwide vehicles coverage, CAN FD & DoIP, FCA AutoAuth（The 689BT only provides a login and purchase portal, and users are required to register for an FCA account and pay a membership fee in order to perform the relevant automotive diagnostics)
- [3000+ Active Tests]Active testing is one of the most useful features in automotive maintenance and greatly improves mechanic efficiency. THINKCAR 689BT bidirectional scanner can send action commends to vehicle sub-systems or components for active test without using vehicle controls. It can perform various tests such as: EVAP Test, Fuel Trim Reset, Injector Buzz Test, Window/ Mirror/ Door Lock Test, Pump and Value Tests, etc. Get functions from "Diagnose>Car Model>System>Active Test".
- [Hot Advanced Features] 689BT bidirectional tool newly adds ECU Coding, Power Balance, Flash Hidden Functions, Reset Adaptive Data, Match Replaced Components, Customize OE-Settings. Such as: 1. changing the color of interior lights 2. switching on/off the auto hold, 3. customizing dash kits 4. activating the auto side mirror folding function 5. disables auto start-stop. Note: Coding functions vary by model&year.
- 【Warm Tips】Wired THINKSCAN 689 is connected through a detachable OBDII cable, and we also have added OBD2 Extension Cable (about 60 cm/2 feet) as g ift, enabling customers handling vehicle repairs with ease. Just click "Bundles Item" above to get it. Note: FCA AutoAuth is a third-party service, additional cost may be required.
- 【Professional Car Diagnostic Tool】Tired of renew fees? Thinkscan 689 scanner provides dealer-level advanced functions without annual fees for auto mechanics and repair shops. 34+ Services, 3000+ Active Test, ECU Coding, 140+ Brands Coverage, FCA AutoAuth, CANFD&DOIP Protocol, Component Matching, Power Balance, V.A.G Guided, Compatible with Google Chrome integration, etc. With strong hardware backing, 64G Memory, Android 10, 4-core processors, and 4150mAh battery. Thinkscan 689 brings you the best as your daily business helper and never lets you drop the ball!
- 【Over 34 Reset Service, Adaptation + Relearn + Calibration + Initialization + Matching】Made for workshops, Thinkscan 689 scanner provides 34+ services for worldwide vehicles: such as Gear/SAS/EPB/TPMS/D.P.F/I.M.M.O/BMS/ETS/Oil/Brake/AFS/GEARBOX/SUNROOF/SUS Reset, ABS Bleed, Injector coding, etc. Warm tips: Compatibility may vary on vehicles' model and year, please contact seller before purchase to make sure it works well on your cars.
- 【Real Active Test】Thinkscan 689 scan tool features over 3000+ full bi-directional control ability, to send commands to vehicle’s systems/components, to verify system input/output without using the vehicle's controls, e.g. turn on the radiator fan, modulate the throttle, open/close windows, operate mirrors, Injector Buz Test, turn on interior&exterior lights, sound horn, test door lock actuators, turn on/off front/rear side ACM Solenoid, Vehicle level position calibration, Wheel Speed Sensor Supply.
- 【Comprehensive Solutions with Advanced Features】Take your vehicle customization to the next level with the Thinkscan 689's advanced ECU coding capabilities. This scan tool provides power balance, PMI, unlock more new features and enhance performance by activating dormant functions, customizing OE settings, matching replaced components, and reprogramming adaptive data to elevate your driving experience. Note: Compatibility varies by car models, please check before order.
- 【Cost-effective OBD2 scanner】 Thinkcar Thinkdiag2 is the most powerful wireless diagnostic tool for it's price! Equipped with multi-functions of Newly added CAN-FD protocol, BiDirectional control(Active Test), 15 Maintenance resets, All Systems diagnosis, Auto VIN, FCA AutoAuth, Unlock the protected FCA vehicle SGW module on Chrysler, Dodge, Jeep, Alfa Romeo, and Fiat vehicles manufactured after 2019.120+ Car brands coverage, No IP limited, etc. Good for workshops & DIYers. Kindly send us VIN to check compatibility before purchase
- 【OE-Level Full Systems Car Scanner with Added CAN FD Protocol】 Upgrade of Thinkdiag, Thinkdiag2 is a bluetooth diagnostic tool can diagnose Full System such as ECM, ABS, SRS, TCM, EPB, TPMS, SAS, A/C, BMS, etc. Thinkdiag2 can read/clear fault codes, read real-time data, read control module information,etc. As the only diagnostic scanner in this price range that supports the CAN-FD protocol, it suits for the latest GM(2019-) , saving $100 to buy a CAN FD adapter, reducing the risk of undetected errors to enhancing the user experience
- 【Bidirectional Test】This bidirectional scan tool Thinkdiag2 allows you to send commands from your smartphone directly to the vehicle's ECU for active testing, quickly locate problem areas, such as A/C clutch, windows, doors, sunroof, etc., reducing the diagnostic time and money. (Note: kindly send us VIN to check compatibility before order.)
- 【15+ Maintenance Functions】Thinkdiag2 OBDII code scanner is designed for individual car owners, DIYers, and small repair shops, which has a separate menu of 15 common special functions, such as Oil reset, EPB reset, SAS calibration, ABS bleeding, injector code, TPMS reset, etc. Enter from the all-system diagnostic menu to unlock more system special functions, and effectively handle the reset and relearn of most cars. Note: The Maintenance functions that each car can do may be different
- 【120+ car brands & FCA Autoauth+10 languages】Thinkcar thinkdiag2 helps you to troubleshoot the problems fast for 100 + US, European, Asian vehicle brands after 1996 that use the OBDII protocol. Only support 12V cars, including gasoline cars and diesel cars. Supporting Autoauth allows you to unlock the protected FCA vehicle SGW module on Chrysler, Dodge, Jeep, Alfa Romeo, Fiat vehicles, etc. (Note: Only provide AutoAuth login portal, and need purchase the registration number on the AutoAuth website by yourself.) Multilingual function allows workshop mechanics to avoid language barriers and use it around the world Without restriction
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.