Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1979 K20.
The 1979 Chevrolet K20 carries a remarkably clean reliability record, with just a single owner complaint on file and zero recalls — a complaint volume that matches the lowest documented year (1998) in the model's tracked history spanning 1990 through 1998. That lone complaint falls under the "Unknown Or Other" category, meaning no specific mechanical or structural concern surfaces as a pattern for this model year, in contrast to the model's 1993 peak of five complaints. For researchers evaluating the K20's long-term durability, the 1979's near-absence of owner complaints positions it well outside the model's more active trouble years and indicates that whatever issues later production years would generate, this early entry largely sidestepped them.
Engine, drivetrain, dimensions and economy.
| Overall length | 211 in |
| Overall width | 79.5 in |
| Overall height | 74 in |
| Wheelbase | 131.5 in |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The 1979 Chevrolet K20 shows minimal federal scrutiny in its specific target year, recording only a single complaint categorized as "Unknown or Other" with zero crash or fire incidents. In contrast, the provided generational federal record spans 1990 to 1998, revealing a late-lifecycle trend where complaints climbed to a peak of 5 in 1993 and recalls reached a high of 6 in 1994. The 1979 model year falls entirely before this documented arc of regulatory activity, implying that while the original production year was quiet, aging vehicles eventually triggered significant federal investigations and recalls over a decade later. The data does not specify the root causes for these later recalls or the single 1979 complaint. Given the lack of target-year defects and the likelihood that the subsequent 1990s recalls addressed aging components on surviving trucks, a 1979 K20 is a good year to buy provided you verify that those later safety campaigns have been completed.
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.
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.