Cat and MaK marine propulsion engines, generator sets, controls, parts and repower programs.
Caterpillar Marine Equipment Enhanced
Cat C7.1 Marine Auxiliary Engine (Electronic)
Cat C7.1 electronic in-line 6 marine auxiliary diesel engine, 109–218 bkW, common rail fuel system, heat exchanger or keel cooled; U.S. EPA Tier 3, IMO II, EU Stage V and China II.
Description
The Cat C7.1 (Electronic) is an in-line six-cylinder, four-stroke turbocharged-aftercooled diesel used as a marine auxiliary and generator set engine, covering 109–218 bkW at 50/60 Hz.
Technical data
- Power range: 109–218 bkW
- Rated speed: 1500/1800 rpm (variable 600–2400 rpm)
- Bore × stroke: 105 mm × 135 mm
- Displacement: 7.01 l (428 in³)
- Governor: electronic (A5E2 V2 ECM)
- Cooling: heat exchanger or keel cooled
- Lube oil refill with filter change: 20 l (5.3 gal); oil change interval 500 hours
- Flywheel housing: SAE No. 3 with SAE 11.5 in flywheel; counterclockwise rotation
- Dimensions (L × W × H): 1095 × 851 × 891 mm
- Emissions: U.S. EPA Tier 3, IMO II, EU Stage V, China II
- Example rating: 209 bkW (280 bhp) at 2300 rpm (EPA Tier 3 / IMO II)
Key features
- Common rail fuel system with electric priming pump; self-priming fuel system
- Gear-driven jacket water and sea water pumps
- Maintenance-free valve train with hydraulic lash adjusters
- Closed crankcase ventilation; integral oil cooler; fuel cooler
- Water-cooled turbocharger and exhaust manifold; corrosion-resistant sea water aftercooler
- 12 V or 24 V electrical system and starter; compatible with Cat displays and electronics
Options
- Water-cooled 6 in exhaust elbow configurations
- Engine-mounted bilge and auxiliary water pumps with electromagnetic clutch
- Shell-and-tube jacket water heat exchanger with gear-driven sea water pump
- Jacket water heater, calorifier connections, transmission oil cooler
- SOLAS double-wall high-pressure fuel line kit
- Secondary alternator (24 V 100 A or 12 V 175 A), glow plugs, extra sensor packages
Specifications
| Emissions | U.S. EPA Tier 3, IMO II, EU Stage V, China II U.S. EPA Tier 3, IMO II, EU Stage V, China II |
|---|---|
| Stroke | 5.31 in 135 mm |
| Displacement | 428 in³ 7.01 l |
| Aspiration | Turbocharged - Aftercooled Turbocharged - Aftercooled |
| Governor | Electronic (A5E2 V2 ECM) Electronic (A5E2 V2 ECM) |
| Configuration | In-line 6, 4-stroke-cycle diesel In-line 6, 4-stroke-cycle diesel |
| Refill Capacity | Lube Oil System w/Oil filter change: 20 L (5.3 gal) Lube Oil System w/Oil filter change: 20 L (5.3 gal) |
| Oil Change Interval | 500 hours 500 hours |
| Cooling | Heat exchanger or keel cooled Heat exchanger or keel cooled |
| Flywheel Housing | SAE No. 03 with SAE 11.5 in flywheel SAE No. 03 with SAE 11.5 in flywheel |
| Rotation | Counterclockwise Counterclockwise |
| Rated Engine Speed | 1500/1800, 600 - 2400 rpm 1500/1800, 600 - 2400 rpm |
| Bore | 4.13 in 105 mm |
| Engine Dry Weight - Approximate | 1676 1676 |
| Height | 34.5 in 891 mm |
| Length | 43.1 in 1095 mm |
| Width | 33.5 in 851 mm |
| Power Range | 109 - 218 bkW |
| Frequency | 50 / 60 |
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