
Standard Features
(U.S. EPA Current Tier Certified)
- Displacement: 9.8 L
- Turbo charged & charge air cooled
- Peak torque: 1090 LB/FT @ 1500 RPM
- Fuel consumption: .342 LB/HP-HR
- Flywheel housing: SAE 1
- Electric self-priming fuel lift pump
- 24V electrics
- Glow plug starting aid
- High angularity oil pan
- 500-hour service intervals
- 5-year / 5,000-hour limited warranty*
*Years or hours of service, whichever comes first. Please see your authorized Isuzu distributor or dealer for warranty and other details.

Available Current Tier Certified Models
Main Specifications
Displacement | 9.8L (604.1 cu in) |
Cylinders | 6 |
Cycle | 4 Stroke |
Cooling System | WATER COOLED (RECOMMENDED O.A.T.) |
Valvetrain | OHC |
Injection | DIRECT INJECTED |
Aspiration | TURBOCHARGED OR CHARGED AIR COOLED |
Fuel | DIESEL |
Dry Weight | 840kg (1851.9lbs) |
Coolant Capacity (Block) | 22.5L (23.8 qt.) |
Oil Capacity | 36.0L (38.0 qt.) |
Horsepower | 269.9kW (362HP) @ 2000 RPM Variable |
Dimensions - L x W x H (6UZ1) | 1368.4mm x 1012mm x 1229.5mm (53.9in x 39.8in x 48.4in) |
Emissions | U.S. EPA Final Tier 4 |
EU Stage V Available† |
†Contact your authorized Isuzu distributor or local sales representative for product availability and information.
Isuzu REDTech™ 6U Lit Sheet
- 6UZ1
-
Displacement 9.8L (604.1 cu in) Cylinders 6 Cycle 4 Stroke Cooling System WATER COOLED (RECOMMENDED O.A.T.) Valvetrain OHC Injection DIRECT INJECTED Aspiration TURBOCHARGED OR CHARGED AIR COOLED Fuel DIESEL Dry Weight 840kg (1851.9lbs) Coolant Capacity (Block) 22.5L (23.8 qt.) Oil Capacity 36.0L (38.0 qt.) Horsepower 269.9kW (362HP) @ 2000 RPM Variable Dimensions - L x W x H (6UZ1) 1368.4mm x 1012mm x 1229.5mm (53.9in x 39.8in x 48.4in) Emissions U.S. EPA Final Tier 4 EU Stage V Available† †Contact your authorized Isuzu distributor or local sales representative for product availability and information.
Isuzu REDTech™ 6U Lit Sheet

U-SERIES
Standard Features
(Lesser Regulated Countries)
- Displacement: 9.8 L
- Turbo charged & charge air cooled
- Peak torque: 1090 LB/FT @ 1500 RPM
- Fuel consumption: .342 LB/HP-HR
- Flywheel housing: SAE 1
- Electric self-priming fuel lift pump
- 24V electrics
- Glow plug starting aid
- High angularity oil pan
- 500-hour service intervals
- 5-year / 5,000-hour limited warranty*
*Years or hours of service, whichever comes first. Please see your authorized Isuzu distributor or dealer for warranty and other details.
Available LRC Models
(Lesser Regulated Countries)
Main Specifications
Displacement | 9.8L (604.1 cu in) |
Cylinders | 6 |
Cycle | 4 Stroke |
Cooling System | WATER COOLED (RECOMMENDED O.A.T.) |
Valvetrain | OHC |
Injection | DIRECT INJECTED |
Aspiration | TURBOCHARGED OR CHARGED AIR COOLED |
Fuel | DIESEL |
Dry Weight | 840kg (1851.9lbs) |
Coolant Capacity (Block) | 22.5L (23.8 qt.) |
Oil Capacity | 36.0L (38.0 qt.) |
Horsepower | 260.2kW (349HP) @ 1800 RPM Constant |
269.9kW (362HP) @ 1950 RPM Variable | |
Dimensions - L x W x H (6UZ1) | 1368.4mm x 1012mm x 1229.5mm (53.9in x 39.8in x 48.4in) |
Emissions | U.S. EPA Tier 3 |
EC Stage IIIa |
- 6UZ1 LRC
-
Displacement 9.8L (604.1 cu in) Cylinders 6 Cycle 4 Stroke Cooling System WATER COOLED (RECOMMENDED O.A.T.) Valvetrain OHC Injection DIRECT INJECTED Aspiration TURBOCHARGED OR CHARGED AIR COOLED Fuel DIESEL Dry Weight 840kg (1851.9lbs) Coolant Capacity (Block) 22.5L (23.8 qt.) Oil Capacity 36.0L (38.0 qt.) Horsepower 260.2kW (349HP) @ 1800 RPM Constant 269.9kW (362HP) @ 1950 RPM Variable Dimensions - L x W x H (6UZ1) 1368.4mm x 1012mm x 1229.5mm (53.9in x 39.8in x 48.4in) Emissions U.S. EPA Tier 3 EC Stage IIIa