2021 PETERBILT 520
6 recalls, 0 complaints - 35 TSBs
22V939000 Dec 16, 2022
SUSPENSION:MULTIPLE AXLE
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2015-2023 Peterbilt 320 and 520 refuse trucks equipped with Haulmaax/EX suspensions. The suspension tracking rod brackets may fail and detach from the forward drive axle, causing the axle to become unstable.
Consequence
An unstable axle can decrease vehicle stability and control, increasing the risk of a crash.
Remedy
Dealers will inspect the welds and add an additional bracket between the tracking rod bracket and axle housing, as necessary, free of charge. Owner notification letters are expected to be mailed February 14, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number ... Read more
21V720000 Sep 16, 2021
SERVICE BRAKES, AIR
Defect Description
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."
Consequence
A missing quick release valve cannot ensure correct rear brake release timing, increasing the risk of a crash or injury.
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.
21V391000 May 26, 2021
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Consequence
A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy
Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWC and 21PBD.
21V004000 Jan 11, 2021
STEERING:COLUMN
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2015-2021 Peterbilt 320 and 520 vehicles. The steering column support structure may crack or break in certain right-hand, stand-up drive models.
Consequence
If the steering column loosens from the mounting structure, steering control can become affected, increasing the risk of a crash.
Remedy
PACCAR will notify owners, and dealers will inspect the 520 models right hand stand-pp steering column structure and replace it if cracks are present, as well as add additional support brackets to the new (if replaced) or existing structure, free of charge. Additionally, for the 520 models, dealers... Read more
20V739000 Nov 25, 2020
ELECTRONIC STABILITY CONTROL (ESC)
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 520 vehicles. The stability control brake relay may have the Spring Brake Modulating (SBM) Valve or the lift axle hose incorrectly connected.
Consequence
A stability control event meant to only actuate the ABS controlled wheel ends could actuate lift axle brakes or modulate park brake chambers and could possibly de-stabilize the vehicle, increasing the risk of a crash.
Remedy
PACCAR will notify owners, and dealers will inspect the suspect chassis and correct the brake relay plumbing if needed, free of charge. PACCAR has issued owners an interim notification on January 4, 2020. Owner notification letters were mailed on January 25, 2021. Owners may contact Peterbilt cus... Read more
20V506000 Aug 26, 2020
POWER TRAIN:AXLE ASSEMBLY
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 348, 365, 367, 389, 520, 567 and Kenworth T800, T880, W900, W990 vehicles equipped with Watson and Chalin steerable lift axle suspension systems (model SL2065). The axles may have lower rear pivot bolts that are not long enough t... Read more
Consequence
The short screws can cause the hardware to separate from the suspension system and become road hazards, increasing the risk of a crash and/or injury.
Remedy
PACCAR will notify owners, and dealers will inspect suspect chassis and replace the pivot bolts, as necessary, free of charge. The recall began September 29, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for... Read more
No complaints found for this vehicle.
Technical Service Bulletins, 2021 PETERBILT 520
35 manufacturer communications from 25 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 060000 ENGINE AND ENGINE COOLING | 8 |
| 350000 EQUIPMENT | 5 |
| 110000 ELECTRICAL SYSTEM | 4 |
| 080000 FUEL SYSTEM, DIESEL | 3 |
| 040000 SERVICE BRAKES, AIR | 2 |
| 356000 EQUIPMENT ADAPTIVE/MOBILITY | 2 |
| 130000 VISIBILITY | 2 |
| 070000 FUEL SYSTEM, GASOLINE | 2 |
E290
Nov 20, 2023
060000 ENGINE AND ENGINE COOLING
Updated procedures and SRT time to include Fuel Filter replacement during cleaning process. Removed in-tank additive references.
46-003
Oct 31, 2023
251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
A software fix for model 520EV that are not equipped with ESP (Stability Control) is now available. The currently available soft ware, part number:SCM_1p5_BC_R5p00_003, will address issues caused by software version R5.00_002 that affect Pe
E306
Oct 18, 2023
080000 FUEL SYSTEM, DIESEL
Incorrect fuel filter drain and replacement procedures on EPA21 MX-11 and MX-13 engines can result in the following: .Debris and contaminants introduced into the high-pressure fuel system. .Denial of warranty claims for injector and/or f
R2304
Jul 14, 2023
110000 ELECTRICAL SYSTEM
Quality and Volume Validation vehicles built for the 520 VMUX program between July 2019 and December 2020 are eligible for a retrofit of the digital display to a production intent unit that features updated base software, secured hardware,
E300
May 3, 2023
060000 ENGINE AND ENGINE COOLING
PACCAR will reimburse customers for the local purchase of in-tank fuel additive for EPA2021 compliant MX engines. This is a one-time reimbursement. Only customers who have received E290 injector cleaning qualify for this reimbursement. See
E290
Apr 3, 2023
060000 ENGINE AND ENGINE COOLING
FIX-AS-FAIL a?? Updated procedures and claim filing information. EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Refer to E300 for in-tank additive information.
45-064
Oct 18, 2022
060000 ENGINE AND ENGINE COOLING
Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic c
13-060
Aug 3, 2022
030000 BRAKES (PWS)
The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
01-085
Jul 12, 2022
130000 VISIBILITY
Info Only a?? Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC system, may have service port spacing which will not allow the connection of a pressure gauge to both the high and low side service port
E294
May 12, 2022
070000 FUEL SYSTEM, GASOLINE
Information Only - This bulletin is to provide information about the availability of a fuel filter set for Pre-Production or Validation level chassis. This fuel filter set is available directly from a PACCAR dealership parts department.
E290
Mar 31, 2022
060000 ENGINE AND ENGINE COOLING
This bulletin provides information on the EPA21 MX fuel injector cleaning procedure and includes suggested fuel system cleaning fluids. This procedure also provides information to determine if it is necessary to replace the fuel injectors.
E286
Mar 22, 2022
350000 EQUIPMENT
Fix-As-Requested - a??a??a??Engine Model Year 2021B and later PACCAR MX-11 & MX-13 Fuel Injector Adjustment During First C Service
E286
Mar 22, 2022
073200 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
Fix-As-Requested - a??a??a??Engine Model Year 2021B and later PACCAR MX-11 & MX-13 Fuel Injector Adjustment During First C Service
E286
Mar 22, 2022
060000 ENGINE AND ENGINE COOLING
Fix-As-Requested - a??a??a??Engine Model Year 2021B and later PACCAR MX-11 & MX-13 Fuel Injector Adjustment During First C Service
TIB 98-020
Mar 18, 2022
350000 EQUIPMENT
Information Only a?? New Level 1 required tools are available to support MY21B MX engines.
51-013
Feb 4, 2022
350000 EQUIPMENT
Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway (PMG001) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G ant
E282
Dec 17, 2021
060000 ENGINE AND ENGINE COOLING
Information Only: Due to differences between the PACCAR MX-11 or MX-13 2021A and 2021B engines, technicians must be able to identify which of these engines are in a chassis.
E280
Dec 2, 2021
060000 ENGINE AND ENGINE COOLING
Non-Safety Campaign: Certain DC tools were incorrectly calibrated. The resulting torque issue could affect the EPA21 MX-11 and MX-13 Oil Pan and/or the Exhaust Manifold.
21 PBK
Sep 23, 2021
040000 SERVICE BRAKES, AIR
a??Safety Recall a?? 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 Seate
43-071
Sep 21, 2021
080000 FUEL SYSTEM, DIESEL
Fix-As-Fail a?? Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a veh
21 PBG
Aug 6, 2021
080000 FUEL SYSTEM, DIESEL
a??Safety Recall - Model year 2021 Cummins PX9 fuel hose assemblies may leak from the hoses between the fuel pump and the remote filter head. A fuel leak in the presence of an ignition source may increase the risk of a fire. A repair is now
21-PBD
Jun 22, 2021
070000 FUEL SYSTEM, GASOLINE
Safety Recall a?? Cummins Fuel Rail Leak a?? NHTSA ID: 21V391 / TC: 2021-323, Cummins Recall: C2423.A Cummins PX9 and ISX12 fuel rails may leak around a sealing washer, potentially resulting in fuel leaks.A Undetected prolonged diesel fuel
15-029
May 27, 2021
010000 STEERING
Information Only - Power steering reservoir cap may separate during removal when it is pulled upward instead of twisted.
34-074
Feb 25, 2021
110000 ELECTRICAL SYSTEM
The current chassis harness connector contains a wire that is no longer necessary with the latest electrical architecture. The presence of the wire could result in a false fault code.
02-160
Feb 10, 2021
350000 EQUIPMENT
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
130000 VISIBILITY
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
136000 VISIBILITY:WINDSHIELD WIPER/WASHER
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
356000 EQUIPMENT ADAPTIVE/MOBILITY
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
13-055
Oct 1, 2020
356000 EQUIPMENT ADAPTIVE/MOBILITY
Fix as Fail: Peterbilt has introduced an improved mounting bracket for low mount air tanks for vehicles built between January 01, 2017 and July 06, 2020. Torsional vibration may stress the currently-installed brackets and cause them to fai
13-055
Oct 1, 2020
350000 EQUIPMENT
Fix as Fail: Peterbilt has introduced an improved mounting bracket for low mount air tanks for vehicles built between January 01, 2017 and July 06, 2020. Torsional vibration may stress the currently-installed brackets and cause them to fai
13-055
Oct 1, 2020
040000 SERVICE BRAKES, AIR
Fix as Fail: Peterbilt has introduced an improved mounting bracket for low mount air tanks for vehicles built between January 01, 2017 and July 06, 2020. Torsional vibration may stress the currently-installed brackets and cause them to fai
34-087
Jun 10, 2020
110000 ELECTRICAL SYSTEM
Non-Safety Campaign: Peterbilt has determined that certain RHSU model 520 trucks, built from 7/16/2018 to 3/20/2020, may have been equipped with a Main Cab Harness that enables the Door Alarm to sound when it should be disabled. Model 520
43-067
Jun 10, 2020
160000 STRUCTURE
Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (a??SOCa??) exhaust and built from 03/6/2006 to 1/20/2020, the clamps that secure the SOC exhaust stacks may not be tightened properly. This may allow the
43-067
Jun 10, 2020
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (a??SOCa??) exhaust and built from 03/6/2006 to 1/20/2020, the clamps that secure the SOC exhaust stacks may not be tightened properly. This may allow the
32-015
Jun 8, 2020
110000 ELECTRICAL SYSTEM
Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplet
PETERBILT 520 - All Years Overview
Complete safety history for the PETERBILT 520 across all model years (1990, 2026).
97
Total Recalls
4
Total Complaints
0
Investigations
0
Reported Crashes
0
Reported Fires
0
Reported Deaths
PETERBILT 520 - Year by Year
Compare recalls and complaints across model years. Click any year to see full details.
| Year | Recalls | Complaints | |
|---|---|---|---|
| 2026 | 2 | 0 | View |
| 2025 | 7 | 0 | View |
| 2024 | 8 | 0 | View |
| 2023 | 5 | 0 | View |
| 2022 | 4 | 0 | View |
| 2021 (current) | 6 | 0 | |
| 2020 | 12 | 3 | View |
| 2019 | 8 | 1 | View |
| 2018 | 8 | 0 | View |
| 2017 | 5 | 0 | View |
| 2016 | 4 | 0 | View |
| 2015 | 3 | 0 | View |
| 2014 | 1 | 0 | View |
| 2013 | 1 | 0 | View |
| 2012 | 1 | 0 | View |
| 2011 | 1 | 0 | View |
| 2010 | 1 | 0 | View |
| 2009 | 1 | 0 | View |
| 2008 | 1 | 0 | View |
| 2007 | 1 | 0 | View |
| 2006 | 1 | 0 | View |
| 2005 | 1 | 0 | View |
| 2004 | 1 | 0 | View |
| 2003 | 1 | 0 | View |
| 2002 | 1 | 0 | View |
| 2001 | 1 | 0 | View |
| 2000 | 1 | 0 | View |
| 1999 | 1 | 0 | View |
| 1998 | 1 | 0 | View |
| 1997 | 1 | 0 | View |
| 1996 | 1 | 0 | View |
| 1995 | 1 | 0 | View |
| 1994 | 1 | 0 | View |
| 1993 | 1 | 0 | View |
| 1992 | 1 | 0 | View |
| 1991 | 1 | 0 | View |
| 1990 | 1 | 0 | View |