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Cummins QSB4.5 Coastal Workboat Inboard Marine Diesel Engine
$16,307.00
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Cummins QSB4.5 Specs
| Manufacturer / Brand | Cummins Marine |
| Model Designation | QSB4.5 Coastal Workboat |
| Engine Type | 4-Stroke Commercial Marine Diesel |
| Cylinder Configuration | Inline-4 Cylinder |
| Total Displacement | 4.5 Liters (275 cu in) |
| Bore x Stroke | 107 x 124 mm (4.21 x 4.88 in) |
| Aspiration & Charge Air | Turbocharged with Seawater Aftercooler (SWAC) |
| Cooling System Architecture | Marine Tubular Heat Exchanger with Seawater Raw Water Pump |
| Continuous Power Rating (P1) | 160 BHP (119 kW) @ 2,600 RPM |
| Maximum / Intermittent Power (P3/P4) | 170 BHP (127 kW) @ 2,800 RPM |
| Fuel Injection Platform | Bosch High-Pressure Common Rail (HPCR) with Full Authority Electronic Control |
| Cylinder Head Metallurgy | Single-Piece Cast Iron with 4 Valves per Cylinder (16 Valves Total) |
| Cylinder Liners | Parent Bore High-Strength Cast Iron Block |
| Flywheel Housing & Flywheel | SAE 3 Flywheel Housing with SAE 11.5 Flywheel |
| Electrical System & Ground | 24V Isolated Ground Marine Electrical System |
| Starter & Alternator Output | 24V 4.5 kW Starter / 24V 70A Marine Alternator |
| Lube Oil Sump Capacity | 11.0 Liters (2.91 US gal) Deep Marine Sump |
| Engine Coolant Capacity | 17.0 Liters (4.49 US gal) |
| Dry Weight (excl. gearbox) | 395 kg (871 lbs) |
| Overall Dimensions (L x W x H) | 914 x 742 x 851 mm (36.0 x 29.2 x 33.5 in) |
| Emissions Certification | EPA Marine Tier 3, IMO Tier II, EU Stage IIIA Compliant |
| Fuel Compatibility | Ultra-Low Sulfur Diesel (ULSD No. 2), Marine Gas Oil (MGO DMA), B20 |
| Transmission / Outdrive Compatibility | Bare Engine - Compatible with ZF 45A, ZF 63A, or Twin Disc MG-5050 Transmissions |
| Factory Warranty Period | 2-Year / 2,000-Hour Commercial Marine Warranty |
| Application Research | Coastal workboats, harbor pilot vessels, aquaculture support craft, inshore commercial fishing boats, and patrol utility launches |
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