CAT C7.1 engine has a rated power output ranging from 129 to 225 bkW (172 to 302 bhp) at 2200 rpm, and meets the U.S. EPA Tier 4 Final and EU Stage V emission standards.
Industries and applications powered by the C7.1 engine include: agriculture, aircraft ground support, drill rigs/drills, crushers/grinders, combine harvesters/harvesters, compactors/rollers, compressors, construction, cranes, rock crushers, chipper/stump grinders, forestry, forklifts, general industrial, hydraulic power units, irrigation equipment, loaders/haulers, material handling, mining, mobile earthmoving equipment, mobile sweepers, paving equipment, pumps, woodchippers, specialty agricultural equipment, sprayers, trenchers, and underground mining equipment.
Air Intake
Control System
- Fully electronic control system with waterproof connectors and wiring harnesses, engineered to withstand harsh off-highway environments.
- Flexible, configurable software features and widely supported SAE J1939 CAN bus enable high machine integration.
Cooling System
- Standard top tank temperature of 108°C (226°F), minimizing cooling package size.
- 50:50 water / ethylene glycol mixture.
- Technical cooling system integration guidance is available from our engineering team to ensure equipment reliability.
Flywheel and Flywheel Housing
- Multiple powertrain interfaces available, including SAE 1, SAE 2, and SAE 3 configurations.
Fuel System
- Electronic high-pressure common rail.
- Innovative filter design ensures optimal engine protection.
Lubrication System
- Multiple oil sump options for various applications.
General
- Paint: Caterpillar Yellow; optional colors available upon request.
- U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final) aftertreatment / clean emissions control equipment.
- Clean Emissions Module (CEM) consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC).
- NOx Reduction System (NRS)
- Selective Catalytic Reduction (SCR)
- 3″ hose connections with straight, 45°, and 90° options for increased flexibility.
Installation
The Cat C7.1 engine also features one of Caterpillar’s most advanced modular engine designs to date, and is equipped with an on-engine aftertreatment system. This allows it to be installed in a wide range of machines, particularly in industrial and construction applications, saving OEMs valuable installation time and space. Downsizing from the 9-liter platform reduces length by 20%, height by 5%, and weight by 40%, delivering significant benefits to OEMs.
Cost Savings
Downsizing offers multiple benefits. Based on the 6-cylinder engine platform, downsizing can reduce total fuel consumption by 18%. Coupled with a 3–4% reduction in total DEF consumption and integrated EGR, significant cost savings can be achieved quickly.
Reliable Operation
The Cat C7.1 engine utilizes passive regeneration technology, enabling operators to continuously perform demanding tasks even in extremely harsh environments without being hindered by the engine. Validated through thousands of hours of field testing, it meets Caterpillar’s stringent safety standards and can handle the diverse, severe operating conditions encountered by customers worldwide.
