The Caterpillar 345C L is a large hydraulic excavator manufactured by Caterpillar Inc. The 345C L, with 345 hp (257 kW) of net flywheel power, is classified as a large excavator by Caterpillar. In Caterpillar's naming conventions, the last two digits indicate the excavator's weight in metric tonnes. The 345C L is not named after its horsepower. Rather, it is a coincidence that both use the number 345. Caterpillar currently produces the 300 series, including the 345C L.

• Engine Model: Caterpillar C13 ACERT
• Net Flywheel Power: 345 hp (257 kW)
• Net Power (ISO 9249): 345 hp (257 kW)
• Net Power (SAE J1349): 349 hp (257 kW)
• Net Power (EEC 80/1269): 345 hp (257 kW)
• Cylinders: 6

• Operating Weight: 99,150 lb (44,970 kg)
• Operating Weight (long undercarriage): 99,150 lb (44,970 kg)

• Max Reach at Ground Level: 42.5 ft (13.0 m)
• Max Digging Depth: 29.3 ft (8.9 m)
• Max Bucket Capacity: 5 yd³ (3.8 m³)
• Nominal bucket weight: 3,880 lb (1,760 kg)
• Bucket digging force (Normal): 39,300 lbf (175 kN) (^[1]

• "Episode 678: Auction Fever", Planet Money, January 22, 2016.