The C4.4 IPU engine is a common rail direct injection engine with either a single turbo or twin turbo chargecooled air system. It meets U.S. EPA Tier 4 Final, EU Stage V and Japan 2014 (Tier 4 Final) emission standards. For ease of installation, the IPU provides full aftertreatment mounting, an integrated cooling system and inlet air filter mounted to the IPU.
Features
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Reliable, Quiet and Durable Power
Global manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
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Exhaust System
Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR) system supplied installed on engine. Zero downtime due to regeneration.
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World-class Product Support Offered Through Global Cat Dealer Network
Superior dealer service network, Customer Support Agreements (CSA) and Cat® Extended Service Coverage (ESC).
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Low-Cost Maintenance
Worldwide service delivers ease of maintenance and simplifies the servicing routine. Hydraulic tappets, multi-vee belts, service free DPF and 500-hour oil change intervals enable low-cost maintenance.
Specifications
Units for specifications
Power Rating
| Maximum Power | 188 hp 140 kW |
|---|---|
| Maximum Torque | 601 lb-ft @ 1400 rpm 815 Nm @ 1400 rpm |
| Rated Speed | 2000 - 2200 rpm |
| Minimum Power | 137 hp 102 kW |
Emission Standards
| Emissions | EU Stage V, U.S. EPA Tier 4 Final, Japan 2014 (Tier 4 Final) |
|---|
General
| Engine Configuration | Inline 4, 4-Stroke-Cycle Diesel |
|---|---|
| Bore | 4.1 in 105 mm |
| Stroke | 5 in 127 mm |
| Displacement | 268.5 in³ 4.4 l |
| Compression Ratio | 16.0:2 |
| Aspiration | Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA) |
| Rotation from Flywheel End | Counterclockwise |
| Aftertreatment | DOC+DPF+SCR |
Power Unit Dimensions
| Length | 60.3 in 1532 mm |
|---|---|
| Width | 34.2 in 869 mm |
| Height | 53.7 in 1364 mm |
| Weight | 1559 lb 707 kg |
Standard Equipment
Air Inlet System
- Standard air cleaners
Control System
- Full electronic control system, all connectors and wiring looms waterproof and designed to withstand harsh off-highway environments
- Flexible and configurable software features and well-supported SAE J1939 CAN bus enables highly integrated machines
Cooling System
- Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
- 50:50 water glycol mix
- Guidance on cooling system design available through your dealer to ensure equipment reliability
Flywheels and Flywheel Housing
- Wide choice of drivetrain interfaces, including SAE No. 2 and SAE No. 3 configurations
Fuel System
- Electronic high pressure common rail
- Innovative filter design to ensure maximum protection of the engine
Lube System
- Wide choice of sumps for different applications
Power Take Off
- SAE A and SAE B flanges on left-hand side. Additional SAE A flange available on left-hand side. Engine power can also be taken from the front of the engine on some applications. Factory fitted compressors are also available.
General
- Available with or without a balancer
- Paint: Caterpillar yellow, with optional colors available at request
U.S. EPA TIER 4 FINAL, EU STAGE V AFTERTREATMENT, JAPAN 2014 (TIER 4 FINAL) / CLEAN EMISSIONS CONTROL EQUIPMENT
- Diesel Oxidation Catalyst (DOC) / Diesel Particulate Filter (DPF) / Selective Catalytic Reduction (SCR)
- No ash service requirement
- Passive regeneration