# Service bulletin PB33\-005\-WST

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11020274
- Published by NHTSA: 2025\-07\-08
- Manufacturer's number: PB33\-005\-WST
- Manufacturer's date: 2025\-06\-19
- NHTSA component: STEERING

## NHTSA's summary

Parts Bulletin for Tie Rod Assembly Part Breakdown

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020274-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020274-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Steering

## Vehicles listed

- 2020 to 2021 WESTERN STAR 4700
- 2022 to 2026 WESTERN STAR 47X
- 2020 WESTERN STAR 4900
- 2021 to 2026 WESTERN STAR 49X
- 2020 to 2021 WESTERN STAR 5700
- 2022 to 2026 WESTERN STAR 57X
- 2020 to 2023 WESTERN STAR 6900

## Recalls for the same vehicles and component

- [22V722000](/recalls/nhtsa/22V722000.md), 2022-09-28: STEERING:LINKAGES:TIE ROD ASSEMBLY
- [2021304](/recalls/tc/2021304.md), 2021-05-19: Steering
- [21V369000](/recalls/nhtsa/21V369000.md), 2021-05-19: STEERING:LINKAGES:TIE ROD ASSEMBLY
- [2021219](/recalls/tc/2021219.md), 2021-04-12: Steering
- [21V256000](/recalls/nhtsa/21V256000.md), 2021-04-12: STEERING:LINKAGES:TIE ROD ASSEMBLY; STEERING:CRITICAL FASTENERS
- [2019539](/recalls/tc/2019539.md), 2019-10-25: Steering
- [19V769000](/recalls/nhtsa/19V769000.md), 2019-10-25: STEERING

## Other bulletins for the same vehicles and component

- [SS778\-WST](/bulletins/11013219.md), 2025-01-29, Other: STEERING. Service Solution for Power Steering Reservoir Fill Cap Venting
- [TechTalk7155](/bulletins/10186610.md), 2021-02-03, Service bulletin: STEERING. Tech Talk discussion on 2020 Western Star, TRW Power Steering Whine.
- [CALShackle](/bulletins/10185927.md), 2021-01-28, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION; EQUIPMENT; STEERING. Customer Advisory Letter for Threaded Pin and Bushing. Western Star Trucks built in 2020 with threaded pins and bushings have been found with loose shackles on the rear of the steering axle suspension. The pins are seizing from lack of lube causing the shackle to rotate on the pin.
- [WP20\-018R](/bulletins/10184029.md), 2020-12-12, Service bulletin: STEERING; POWER TRAIN. Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. Revisions are in blue. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on\-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one \(1\) or two \(2\) years and current parts, labor, and reimbursement policies apply.
- [WP20\-018](/bulletins/10183988.md), 2020-12-12, Service bulletin: STEERING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on\-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one \(1\) or two \(2\) years and current parts, labor, and reimbursement policies apply.
- [TechTalk7742](/bulletins/10183399.md), 2020-12-04, Service bulletin: STEERING; SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:SHACKLE. Tech Talk discussion on loose rear spring shackle bushings in the springs causing steer axle to shift on pins. New comments added.
- [TechTalk2209](/bulletins/10183296.md), 2020-12-01, Service bulletin: STEERING. Tech Talk discussion on TRW GEAR\-STRG,THP60,1200RAD,AB,ST. Steering exhibits shutter when turning left.
- [TechTalk7742](/bulletins/10181990.md), 2020-11-03, Service bulletin: EQUIPMENT; STEERING; SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:SHACKLE. Tech Talk discussion on loose rear spring shackle bushings in the springs causing steer axle to shift on pins,
- [TechTalk4725](/bulletins/10180350.md), 2020-09-30, Service bulletin: STEERING; EQUIPMENT. Tech Talk discussion about power steering fluid.
- [CALWST46\-002](/bulletins/10179075.md), 2020-09-01, Service bulletin: STEERING; EQUIPMENT. Customer Advisory Letter for Torque Validation of Steering Wheel Mounting Bracket Bolts. Western Star 4700 \& 4900 vehicles equipped with a certain steering wheel mounting bracket bolt installation may have a low toque value setting.

JSON: [/v1/bulletins/11020274](/v1/bulletins/11020274)

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