Problems owners report
Complaints filed with NHTSA about the 2004 Kenworth T300, by the system named in each complaint. One complaint can name several.
- Electrical system1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
New York safety inspections
At its first New York inspection the 2004 Kenworth T300 failed the safety check 0.32% of the time — 85% less often than the average 2004 passenger car (2.21%). Median odometer at inspection: 181,838 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
Recalls in Canada
3 Transport Canada recalls for the 2004 Kenworth T300.
| 2007112 10 Apr 2007 | Powertrain On certain trucks, the wiring, parts, or transmission programming required for the auto neutral feature to function as designed were either not installed, conne… |
| 2004296 23 Aug 2004 | Engine On certain vehicles, the Cummins engines were assembled using a pneumatic tool to install the boss plug, in which the air pressure was set high enough to create… |
| 2003197 25 Aug 2003 | Other On certain vehicles, the cooling fan hub mounting bolts could fail resulting in the hub and fan assembly separating from the engine, which may result in equipme… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
ON CERTAIN TRUCKS, THE WIRING, PARTS, OR TRANSMISSION PROGRAMMING REQUIRED FOR THE AUTO NEUTRAL FEATURE TO FUNCTION AS DESIGNED WERE EITHER NOT INSTALLED, CONNECTED, OR PROGRAMMED PROPERLY.
ON CERTAIN TRUCKS, THE POWER FEED HARNESS P92-1993 TERMINALS WERE NOT PROPERLY CRIMPED.
ON CERTAIN TRUCKS BUILT WITH CUMMINS ISC AND ISL ENGINES, PLUGS WERE ASSEMBLED INCORRECTLY CREATING STRESS AND CRACKS WHICH COULD CAUSE AN OIL LEAK.
ON CERTAIN TRUCKS EQUIPPED WITH CATERPILLAR C7 OR 3126E 2002 ENGINES AND HORTON FAN HUBS, THE FAN HUB MOUNTING BOLTS CAN FAIL, RESULTING IN THE HUB AND FAN ASSEMBLY SEPARATING FROM THE ENGINE. THIS LOSS OF CLAMP LOAD CAUSES UNWANTED VIBRATION IN THE ASSEMBLY THAT LEADS TO BOLT FAILURE.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Kenworth told its dealers about the 2004 Kenworth T300: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 10188550 | Information Only Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter. |
| 10177021 | 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 incomplete information. |
| 10173212 | Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles. |
| 10173205 | Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage. |
| 10170199 | This SKU is a Climate Control Module. The customer communication requested return of unsold inventory to inspect alignment pins and knobs. The alignment pins may be weak which cause them to break and knob material may be weak which could cause them to break. Breaking of the alignment pins or knob could prevent adjustment of the climate control system. |
| 10168703 | Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor. |
| 10027646 | KENWORTH TRUCKS: REDUCED ENGINE POWER FROM FUEL STARVATION. ANY MODEL KENWORTH EQUIPPED WITH THE 2007 EMISSIONS COMPLIANT ISX ENGINE AND OPTIONAL DAVCO 382 FUEL FILTER, BUILT PRIOR TO 8/11/08, *PE |
| 10026545 | KENWORTH: THE ORIGINAL PUBLICATION IDENTIFIED CHASSIS WITH PX-8 ENGINES ONLY. PX-8 AND ISC ENGINES-ENGINE WARNING LIGHT ON. *PE |
NHTSA manufacturer communications (public domain)