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| Isuzu Giga | |
|---|---|
| Overview | |
| Manufacturer | Isuzu |
| Also called |
|
| Production | 1994–present |
| Assembly |
|
| Body and chassis | |
| Class | Truck |
| Body style | 2-door standard cab (Worldwide) 4-door crew cab (Australia only) |
| Powertrain | |
| Transmission | 5-speed manual, 6-speed manual, 7-speed manual (Japanese Domestic Market Only), 16-speed manual (for tractor only), 6-speed automatic, 10-speed automatic, 12-speed automatic & 16-speed automatic (Smoother-G & some export models outside Japan) |
| Chronology | |
| Predecessor | Isuzu 810 |
TheIsuzu Giga (Japanese:いすゞ・ギガ) is a line of heavy-dutycommercial vehicles produced byIsuzu since 1994. Outside of Japan, the line is known as theIsuzu C/E series andIsuzu S&E series[2] and was formerly known as theIsuzu Heavy-Duty Truck'.[3] Between 1994 and 2016, it was also sold inSouth America (under theChevrolet brand asChevrolet C/E series).
| First Generation | |
|---|---|
| Overview | |
| Manufacturer | Isuzu Motors Ltd. |
| Also called | C/E series (Intl. exports) Chevrolet C / E series (Latin America) |
| Production | 1994–2015 (Japanese market), Until 2022 (Export market) |
| Body and chassis | |
| Body style | Truck (standard cab (Worldwide), crew cab (Australia only)) |
| Powertrain | |
| Engine | 6NX1 & 6HK1 (Indonesian market only based on Isuzu F-series), 6SD1, 6WA1, 6WF1, 6WG1, 6UZ1, 8PE1, 8TD1, 10PE1, 10TD1, 12PE1 |
| Transmission | 7-speed manual 12-speed Smoother-GAMT 16-speed manual 16-speed Smoother-G |
The Isuzu Giga heavy-duty truck was first introduced in 1994 as the successor to the Isuzu 810. The early models featured multiple body types (box truck, tractor trailer, dump truck), new high GVW options (22t and 25t), and advanced design elements such as bumper-mounted headlights, which later became common in the industry. Several trim levels were offered, ranging from basic to luxury.Over the years, the Giga went through multiple updates that brought design refreshes, safety improvements, and regulatory compliance. In 1997, it became the first large truck line to include SRS airbags and HID headlights as standard safety features. Engine options evolved from V-type engines to more efficient straight-six and turbocharged engines, especially to meet stricter emission and noise regulations in the 2000s.Between 2000 and 2007, further updates focused on emissions compliance, safety standards, exterior redesigns (such as grille and bumper changes), and improved technology. Advanced features like radar-based distance warning and cruise control were introduced by 2007. By this time, older configurations (such as low cab and off-road cabs) were phased out.


Between 2007 and 2010, the Isuzu Giga received updates focused on safety, efficiency, and regulatory compliance. In 2007, electronic stability control (IESC) was added to tractor models, older engine types were discontinued, and a collision damage mitigation braking system was developed. By 2009, exterior components like mirrors and turn signals were redesigned to meet international regulations, and a side-monitoring feature was added to the driver assistance system.
In 2010, a major update introduced new emissions technology (SCR + DPD), standardized the engine lineup to the 6UZ1, improved cooling and lighting through cab redesign, added a new 16-speed transmission for dump trucks, and updated wheel standards.
| Second Generation | |
|---|---|
| Overview | |
| Manufacturer | Isuzu Motors Ltd. |
| Also called | C-series E-series S-series |
| Production | 2015-2022 (Tractor for Japanese market only), 2015-present (Export market & other cargo types for Japanese market except tractor) |
| Body and chassis | |
| Body style | Truck (standard cab (Worldwide), crew cab (Australia only)) |
| Related | Qingling Motors Isuzu VC61 |
| Powertrain | |
| Engine | 6NX1, 6UV1, 6UZ1, 6WG1 |
| Transmission | 7-speed manual 12-speed Smoother-GAMT 16-speed manual 16-speed Smoother-G |



The second-generation Isuzu Giga was unveiled at the 2015 Tokyo Motor Show and launched with a full model change. The new model introduced a redesigned cab shared with Forward and Elf trucks, improved aerodynamics, updated interior with digital displays and steering controls, multiple cab configurations, and enhanced comfort. The 6UZ1 engine continued with efficiency upgrades, alongside improved transmissions and fuel-saving technologies such as Smart Glide. Advanced safety systems were added, including improved pre-crash braking, lane departure warning, and driver support technologies. Fleet management systems (MIMAMORI and PREISM) were also enhanced.
From 2015 to 2018, updates included the introduction of CNG, improved tractor models, new engines (including the 6NX1), better fuel efficiency, compliance with newer emissions regulations, and LED lighting upgrades. Special editions were released, such as the 80th Anniversary model.Between 2019 and 2021, safety became a major focus, with pedestrian and cyclist detection systems, blind spot monitoring, driver monitoring, adaptive cruise control, lane keep assist, and the Emergency Driving Stop System (EDSS) were added. Comfort improvements included higher roofs and premium seating. Monitoring features expanded to include tire pressure, battery status, and safety reporting.
In 2025, the Giga became the first heavy-duty truck in Japan to include a wheel detachment warning system as standard on all models, alongside further strengthened safety technologies.[4]
With the full model change, the symbol at the end of the model has been changed from the original Giga QKG-CYL77A to QPG-CYL77B, for example, in 6x2.
As of 2022 the second generation Giga has launched in Japan, China and Malaysia.[5]

The UD Quon-based model was introduced in March 2023.[6]
"Classification" in the table below indicates the two digits of the three letters of the vehicle model code (C ** or EX * above).
| Classification | Engine model | Aspiration | Displacement | Power | Installation period |
|---|---|---|---|---|---|
| 23 | 6SD1 | Straight-six engine - TCI | 9,839 cc | 228 kW (310 PS) 250 kW (340 PS) | 1994-2005 |
| 50 | 6WA1 | 12,068 cc | 243 kW (330 PS) 265 kW (360 PS) 287 kW (390 PS) | 1994-2000 | |
| 51 | 6WF1 | 14,256 cc | 243 kW (330 PS) 272 kW (370 PS) | 1999-2007 | |
| 52 | 6WG1 | 15,681 cc | 294 kW (400 PS) 309 kW (420 PS) 338 kW (460 PS) 382 kW (520 PS) | 1997- | |
| 60 | 6NX1 | 7,790 cc | 250 kW (340 PS) | 2016- | |
| VC61 | 6UZ1 6WG1 byQingling Isuzu | Straight-six engine - TCI | 9,839 cc 15,681 cc | 382 kW (520 PS) 338 kW (460 PS) 309 kW (420 PS) 279 kW (380 PS) | 2018- |
| 73 | 6TE1 | V6 engine - Naturally aspirated | 18,933 cc | 243 kW (330 PS) 272 kW (370 PS) | 2001-2003 |
| 74 | 8TD1 | V8 engine - Naturally aspirated | 24,312 cc | 302 kW (410 PS) 331 kW (450 PS) 353 kW (480 PS) | 2000-2003 |
| 75 | 10TD1 | V10 engine - Naturally aspirated | 30,390 cc | 441 kW (600 PS) | 1997-2003 |
| 77 | 6UZ1 | Straight-six engine - TCI | 9,839 cc | 243 kW (330 PS) 279 kW (380 PS) 294 kW (400 PS) | 2005- |
| 78 | 6UV1 | Straight-six engine - TCI (CNG) | 9,839 cc | 243 kW (330 PS) | 2015- |
| 80 | 8PE1 | V8 engine - Naturally aspirated | 15,201 cc | 210 kW (285 PS) | 1994-2003 |
| 81 | 10PE1 | V10 engine - Naturally aspirated | 19,001 cc | 239 kW (325 PS) 265 kW (360 PS) | |
| 82 | 12PE1 | V12 engine - Naturally aspirated | 22,801 cc | 283 kW (385 PS) 309 kW (420 PS) 331 kW (450 PS) | 1994-2000 |
1st-gen GIGA - Isuzu's heavy-duty truck underwent a full model change and was released as the GIGA. Named after the unit prefix for billion as well as meaning large or massive, the truck was the largest model Isuzu had ever produced.