Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2004 N-Series.
The 2004 Isuzu N-Series represents a model year defined by exceptional reliability metrics within its extensive production run, with owner complaint data tracked across the 2001–2024 model span showing minimal issues throughout its service life. This commercial truck recorded just one total owner complaint, with the Electrical System cited as the sole reported problem area, while zero recalls were issued for this model year—a figure that distinguishes it in a segment where recall activity is common. The complaint history data indicates that the N-Series maintained consistently low complaint levels across its model years, with 2010 marking both the highest and lowest recorded complaint counts at just one incident, suggesting stable build quality and few systemic concerns. For researchers evaluating the 2004 model's long-term durability and ownership experience, these figures position it among the more dependable iterations of the N-Series, offering a low-risk profile for fleet or commercial applications.
Capacities, torques and tune-up values from the factory service manual.
| Spark Plug Manufacturer | AC Delco |
| Spark Plug Gap | 0.060 in |
| Spark Plug Torque | 11 ft-lbs |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The 2004 Isuzu N-Series sits in a stable early-production window where federal records show zero complaints, one recall, and 49 technical service bulletins — identical to the 2003 model year and consistent with the 2001–2003 baseline. Unlike the subsequent 2005–2009 period when TSB volume climbed steadily from 59 to 92 while recall frequency held at one per year, 2004 precedes that escalation and also predates the first recorded complaint in 2010. Across the full 2001–2024 span, recalls remain remarkably constant at one or two annually, but TSB activity peaks in 2012–2013 (106 and 105) before declining sharply after 2019. The 2004 model year therefore occupies a low-activity inflection point before both the mid-generation TSB surge and the later emergence of complaint-driven scrutiny. The data does not specify the nature of the single 2004 recall or the electrical-system complaint category listed for the target year, though crash and fire complaints are recorded as zero. For a buyer prioritizing a model year with minimal federal intervention signals before the generation's service-bulletin expansion, 2004 represents a favorable vintage.
All 1 complaints on record, top 1 components.
Source: NHTSA Office of Defects Investigation complaint database.
No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.
Showing 5 of 19 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| WB11-X-001A | 2023-10-18 | Engine And Engine Cooling | The following information is provided to clearly explain Isuzuâs policy for control… |
| IB13-R-001G | 2023-05-08 | Unknown Or Other | This bulletin outlines the procedures for using the Alpine Exchange Program (the… |
| WB13-X-001B | 2022-08-30 | Equipment | Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural… |
| WB13-X-001A | 2022-08-02 | Equipment | Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural… |
| IB09-X-002B | 2022-07-20 | Equipment | The following is a list of the Isuzu-recommended Threebond product part numbers… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Cross-vehicle references for the kinds of data on this page.
NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.