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Features
High‑Production Power and Fast Cycle Times
With 249 net horsepower and a robust mid‑size platform, the 345 P‑Tier is built for heavy‑duty applications such as mass excavation, truck loading, and large‑scale site development. Its three‑pump hydraulic system optimizes flow across boom, arm, and swing functions—delivering faster cycle times, improved multitasking capability, and increased productivity on demanding jobsites.
Simplified Maintenance With No DPF and Proven Efficiency
The 345 P‑Tier meets Final Tier 4 / Stage IV emissions standards without a diesel particulate filter (DPF), eliminating regenerations and ash‑service intervals. This simplifies ownership while maintaining fuel‑efficient performance through a proven SCR‑based system—helping reduce downtime and keep machines working longer between service intervals.
Precision Control, Visibility, and Jobsite Awareness
Pilot‑controlled hydraulics and a push‑button power boost provide smooth, precise control with added digging force when needed. Standard right, rear, and left cameras with LED surround lighting deliver enhanced 270‑degree visibility, helping operators work confidently in busy, high‑traffic environments and maintain awareness in low‑light conditions.
Specifications
Powertrain
| Powertrain type | 2-speed propel with automatic shift |
| Maximum travel speed low/slow (mph) | 1.6 mph |
| Maximum travel speed low/slow (km/h) | 2.6 km/h |
| Maximum travel speed high/fast (mph) | 2.5 mph |
| Maximum travel speed high/fast (km/h) | 4 km/h |
| Drawbar pull (kg) | 30388 kg |
| Drawbar pull (lb) | 66990 lb. |
Hydraulics
| Hydraulics type | Open center, load sensing with variable-displacement pumps |
| Main pump type | 3 variable-displacement axial-piston pumps |
| Number of pumps | 3 |
| Main pump maximum rated flow per pump (gpm) | 62 gpm |
| Main pump maximum rated flow per pump (L/min) | 234.7 L/min |
| Pump 2 maximum rated flow per pump (gpm) | 62 gpm |
| Pump 2 maximum rated flow per pump (L/min) | 234.7 L/min |
| Pump 3 maximum rated flow per pump (gpm) | 56 gpm |
| Pump 3 maximum rated flow per pump (L/min) | 212 L/min |
| Pilot pump number of gears | 1 |
| Pilot pump maximum rated flow (gpm) | 9.6 gpm |
| Pilot pump maximum rated flow (L/min) | 36.3 L/min |
| Pilot pump pressure setting (psi) | 566 psi |
| Pilot pump pressure setting (kPa) | 3902.4 kPa |
| Implement circuits system operating pressure (psi) | 4970 psi |
| Implement circuits system operating pressure (kPa) | 34266.9 kPa |
| Travel circuits system operating pressure (psi) | 5150 psi |
| Travel circuits system operating pressure (kPa) | 35508 kPa |
| Swing circuits system operating pressure (psi) | 4700 psi |
| Swing circuits system operating pressure (kPa) | 32405.4 kPa |
| Power boost system operating pressure (psi) | 5510 psi |
| Power boost system operating pressure (kPa) | 37990 kPa |
| Controls type | Pilot levers, short stroke, low-effort hydraulic pilot controls with shutoff lever |
Undercarriage
| Number of carrier rollers per side | 2 |
| Number of track rollers per side | 8 |
| Number of shoes per side | 48 |
| Track adjustment type | Hydraulic |
| Track guides | 3 per side |
| Track chain type | Sealed and lubricated |
Electrical
| Battery voltage (V) | 12 V |
| Number of batteries | 2 |
| Battery capacity (CCA) | 860 CCA |
| Alternator rating (amp) | 50 amp |
| Work lights | 5 LED (1 mounted on frame, 1 on boom left [standard], 2 on top of cab [optional], 1 on boom right) |
Refill Capacities
| Fuel tank (gal.) | 100 gal. |
| Fuel tank (L) | 378.5 L |
| Cooling system (qt) | 50.8 qt |
| Cooling system (L) | 48.1 L |
| Engine oil with filter (qt) | 50.8 qt |
| Engine oil with filter (L) | 48.1 L |
| Hydraulic tank (gal.) | 42 gal. |
| Hydraulic tank (L) | 159 L |
| Hydraulic system (gal.) | 87 gal. |
| Hydraulic system (L) | 329.3 L |
| Swing bearing grease bath (lb) | 41.9 lb. |
| Swing bearing grease bath (kg) | 19 kg |
| Pump drive gear case (qt) | 1.8 qt |
| Pump drive gear case (L) | 1.7 L |
| Swing drive (qt) | 12.4 qt |
| Swing gearbox (qt) | 12.4 qt |
| Swing gearbox (L) | 11.7 L |
| Travel gearbox (gal.) | 2.9 gal. |
| Travel gearbox (L) | 11 L |
| Diesel-exhaust fluid (DEF) (qt) | 16.8 qt |
| Diesel-exhaust fluid (DEF) (L) | 15.9 L |
Cylinders
| Number of boom cylinders | 2 |
| Boom cylinder bore (in.) | 5.3 in. |
| Boom cylinder bore (mm) | 134.6 mm |
| Boom cylinder rod diameter (in.) | 3.9 in. |
| Boom cylinder rod diameter (mm) | 99.1 mm |
| Boom cylinder stroke (in.) | 62.1 in. |
| Boom cylinder stroke (mm) | 1577.3 mm |
| Number of arm cylinders | 1 |
| Arm cylinder bore (in.) | 5.9 in. |
| Arm cylinder bore (mm) | 149.9 mm |
| Arm cylinder rod diameter (in.) | 4.1 in. |
| Arm cylinder rod diameter (mm) | 104.1 mm |
| Arm cylinder stroke (in.) | 65.3 in. |
| Arm cylinder stroke (mm) | 1658.6 mm |
| Number of bucket cylinders | 1 |
| Bucket cylinder bore (in.) | 5.3 in. |
| Bucket cylinder bore (mm) | 134.6 mm |
| Bucket cylinder rod diameter (in.) | 3.5 in. |
| Bucket cylinder rod diameter (mm) | 88.9 mm |
| Bucket cylinder stroke (in.) | 42.1 in. |
| Bucket cylinder stroke (mm) | 1069.3 mm |
Cooling
| Cooling system type | High-efficiency, direct-driven suction-type fan and enclosed fan guard; side-by-side radiator, oil cooler, and intercooler with dust net |
Engine
| Manufacturer | Isuzu |
| Model | 6HK1XASA02 |
| Non-road emission standards | EPA Final Tier 4/EU Stage IV |
| Net power (rpm) | 1900 rpm |
| Net power at net power rpm (ISO 9249) (hp) | 249 hp |
| Net power at net power rpm (ISO 9249) (kW) | 185.7 kW |
| Cylinders | 6 |
| Displacement (cu in.) | 475 cu in. |
| Displacement (L) | 7.8 L |
| Off-level capacity (%) | 70 % |
| Off-level capacity (degrees) | 35 degrees |
| Aspiration type | Turbocharged, air-to-air charge-air cooler |
Operating weights of excavator with standard counterweight and boom
| Conditions for measuring operating weights | With full fuel tank; 79-kg (175 lb.) operator; 1.25-m3 (1.63 cu. yd.), 1067-mm (42 in.), 957-kg operating weights without (2,110 lb.) bucket; 3.76-m (12 ft. 4 in.) arm; 8680-kg (19,136 lb.) counterweight |
| With 32-in. triple semi-grouser shoes (lb) | 78705 lb. |
| With 800-mm triple semi-grouser shoes (kg) | 35700 kg |
Ground Pressure
| 32-in. triple semi-grouser shoes without blade (psi) | 7.3 psi |
| 800-mm triple semi-grouser shoes without blade (kPa) | 50.3 kPa |
Operating weights of optional components with standard counterweight and boom
| 32-in. triple semi-grouser shoes (lb) | 28021 lb. |
| 800-mm triple semi-grouser shoes (kg) | 12710 kg |
| 1-piece boom, with arm cylinder (lb) | 5258 lb. |
| 1-piece boom, with arm cylinder (kg) | 2385 kg |
| 10-ft, 2-in. arm with bucket and linkage (lb) | 3294 lb. |
| 3.11-m arm with bucket and linkage (kg) | 1494.1 kg |
| 12-ft, 4-in. arm with bucket and linkage (lb) | 3490 lb. |
| 3.76-m arm with bucket and linkage (kg) | 1583 kg |
| Boom-lift cylinders (2), total weight (lb) | 1287 lb. |
| Boom-lift cylinders (2), total weight (kg) | 583.8 kg |
Swing Mechanism
| Speed (rpm) | 10.5 rpm |
| Torque (lb-ft) | 66750 lb-ft |
| Torque (Nm) | 90501 Nm |