المحرك Caterpillar 3408C لـ حفارة

The Legendary 18L V8 Workhorse for Heavy-Duty Applications
Overview
The Caterpillar 3408C is a rugged, reliable 4-stroke V8 diesel engine built for the most demanding industrial, marine, and power generation environments. Renowned for its high torque, simple mechanical design, and rebuildable construction, the 3408C has earned a global reputation for long service life and low operating costs. Though no longer in production, it remains a top choice for operators prioritizing proven performance and easy maintenance.


Key Specifications
Engine Type: 4-stroke, V8, turbocharged & aftercooled
Displacement: 18.0 L (1,099 in³)
Bore × Stroke: 137 mm × 165 mm (5.4 in × 6.5 in)
Power Range: 540–900 HP (403–671 kW) @ 1,800–2,100 rpm
Max Torque: 2,500+ lb-ft (3,390+ N·m) @ 1,400 rpm
Fuel System: Mechanical direct injection (inline pump)
Cooling: Water-cooled (ATAAC or JWAC aftercooling)
Dry Weight: ~4,000–4,500 lb (1,814–2,041 kg)
Firing Order: 1-5-4-2-6-3-7-8
Core Advantages
✅ Unmatched Durability
Heavy-duty gray iron block, forged steel crankshaft, and 4-valve cylinder heads designed for repeated rebuilds. Withstands harsh conditions and poor fuel quality.
✅ High Torque & Efficiency
18L displacement delivers massive low-end torque for heavy loads, ensuring reliable performance in tough applications.
✅ Simple & Serviceable
Mechanical control system enables easy diagnostics and repair in remote areas. Global parts network supports minimal downtime.
✅ Versatile Applications
Ideal for:
Marine propulsion & auxiliary power (fishing boats, tugboats, work vessels)
Industrial machinery (mining, oilfield, crushers, conveyors)
Power generation (500–750 kVA prime/standby gensets)
Heavy equipment (D9R dozers, haul trucks)