Isuzu Giga trucks from Japan can be found with several different engine families, so “Isuzu Giga” alone is not enough information for a used-truck purchase. Older Japanese Giga stock includes engines such as the 6WF1, 6WG1 and PE-series diesels, while the 9.839-liter 6UZ1 became a major engine in later generations and remains important in the current Japanese-market Giga. The correct choice depends on more than displacement or horsepower. Overseas buyers should compare the engine code together with the full model code, chassis configuration, GVW, payload, body, transmission, emissions equipment and mechanical condition. This guide explains the main Giga engine families ...
