Total Complaints
1 filings
KENWORTH T440 · model year
2021 KENWORTH T440
1 NHTSA complaints, and 4 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2021KENWORTHT440 carries 1 consumer safety complaint in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2021 T440 is service brakes with 1 filings. Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 4 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 3 investigation files overlapping the 2021 T440. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
1
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| SERVICE BRAKES | 1 |
Recalls (4)
21V39100026/05/2021
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
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.
24V14500023/02/2024
SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, and 2009-2019 Kenworth W900 ve
24V91500009/12/2024
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models. Electrical noise and low signal to the power line carrier may cause the ECU to
21V60100003/08/2021
FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Peterbilt 536, 537, 548 and Kenworth T270, T280, T370, T380, T440, T470, and T480 vehicles equipped with Cummins L9 diesel engines. A fuel leak may occur from the fuel hose between the fuel pump and the remote fuel filter head.
Recent Complaints
20220315SERVICE BRAKES
While driving the factory floor mat can slide under the rear of the brake pedal while it is being applied. Once pedal is released it will still hold brake pressure causing brakes to remain engaged while still allowing vehicle to move down the road in turn causing brakes to heat up and either lockup/ catch fire or once cooled become inoperable. We have heat marks on exterior of front drums and pads were glazed over.
Compare 2021KENWORTHT440 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2021 KENWORTH T440 have?▼
The 2021 KENWORTH T440 has 1 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
Are there any recalls for the 2021 KENWORTH T440?▼
Yes, the 2021 KENWORTH T440 has 4 recall(s). The most common affected component is FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2021 KENWORTH T440?▼
The most-complained component for the 2021 KENWORTH T440 is SERVICE BRAKES with 1 complaints. Other frequently reported areas include various components.
Is the 2021 KENWORTH T440 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.