With our huge inventory of new, used and rental equipment, WesTrac has the right machine for the job.
With our huge inventory of new, used and rental equipment, WesTrac has the right machine for the job.
Keep your operation working around the clock by making WesTrac your partner in parts. With over 75,000 product lines stocked in our warehouses, ready-to-go, we won't let you down.
The Cat® 374 Excavator is a 74-tonne large excavator that brings high production, durability, and low maintenance costs to your jobsite. The 374 excavator has 10% more swing torque, twice the structural durability and 20% lower maintenance costs than the 374F.
Cat® 374– More Production and Durability with Less Maintenance
The unique capabilities and features of the Cat® 374 improve your operation when it comes to efficiency, production, and safety. With 10% more swing torque and a hydrostatic swing circuit, the 374 recovers energy while swinging and can load up to 33 40-ton trucks an hour. Equipped with the SD5.0m3 bucket, this machine can load a 70-ton off-road truck in 7 passes. Built for durability, the 374 is structurally sound with reinforced track rollers, booms, sticks upper and lower frames. Reduced hydraulic oil capacity, improved filters with longer service intervals, and an integrated auto-lube-ready system save you up to 20% in maintenance costs. The 374 offers the latest technology and data, allowing you to make informed, smart decisions in a competitive industry. Improved all-around visibility helps keep your jobsite and employees safe while enhancing productivity.
Net Power - ISO 9249 | 361 kW | 484 HP |
Net Power - ISO 9249 (DIN) | 491 hp (metric) | 491 hp (metric) |
Engine Model | Cat C15 | Cat C15 |
Engine Power - ISO 14396 | 362 kW | 485 HP |
Engine Power - ISO 14396 (DIN) | 492 hp (metric) | 492 hp (metric) |
Bore | 137 mm | 5.4 in |
Stroke | 171 mm | 6.7 in |
Displacement | 15.2 l | 928 in³ |
Biodiesel Capability | Up to B20¹ | Up to B20¹ |
Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, and Japan 2014 emission standards. | Meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, and Japan 2014 emission standards. |
Note (1) | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,700 rpm. Advertised power is tested per the specified standard in effect at time of manufacture. | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,700 rpm. Advertised power is tested per the specified standard in effect at time of manufacture. |
Note (2) | ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels.Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. | ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels.Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. |
Hydraulic System
Main System - Maximum Flow - Implement | 896 l/min | 237 gal/min |
Maximum Pressure - Equipment | 37000 kPa | 5366 psi |
Maximum Pressure - Equipment - Lift Mode | 38000 kPa | 5511 psi |
Maximum Pressure - Travel | 35000 kPa | 5076 psi |
Maximum Pressure - Swing | 35000 kPa | 5076 psi |
Swing Mechanism
Swing Speed | 6.34 r/min | 6.34 r/min |
Maximum Swing Torque | 298 kN·m | 220000 ft·lbf |
Weights
Operating Weight | 71700 kg | 158200 lb |
Note | Long Variable Gauge undercarriage, Reach boom, R4.67VB (15'4") stick, SD 3.3 m³ (4.32 yd³) bucket, 900 mm (35") HD double grouser shoes and removal type counterweight. | Long Variable Gauge undercarriage, Reach boom, R4.67VB (15'4") stick, SD 3.3 m³ (4.32 yd³) bucket, 900 mm (35") HD double grouser shoes and removal type counterweight. |
Service Refill Capacities
Fuel Tank Capacity | 920 l | 243 gal (US) |
Cooling System | 71 l | 19 gal (US) |
Engine Oil | 62 l | 16 gal (US) |
Swing Drive | 20 l | 5 gal (US) |
Final Drive - Each | 32 l | 9 gal (US) |
Hydraulic System - Including Tank | 620 l | 164 gal (US) |
Hydraulic Tank | 326 l | 86 gal (US) |
DEF Tank | 80 l | 21 gal (US) |
Dimensions
Boom | Reach 7.8m (25'7") | Reach 7.8m (25'7") |
Stick | R3.6m (11'10") | R3.6m (11'10") |
Bucket | SD 3.3 m³ (4.32 yd³) | SD 3.3 m³ (4.32 yd³) |
Shipping Height - Top of Cab | 3559 mm | 11.8 ft |
Handrail Height | 3982 mm | 13 ft |
Shipping Length | 13652 mm | 44.9 ft |
Tail Swing Radius | 4171 mm | 13.8 ft |
Counterweight Clearance | 1494 mm | 4.1 ft |
Ground Clearance | 782 mm | 2.6 ft |
Track Length | 5873 mm | 19.3 ft |
Track Length to Center of Rollers | 4705 mm | 15.5 ft |
Track Gauge | 3410 mm | 11.2 ft |
Transport Width | 3400 mm | 11.1 ft |
Note | Track gauge undercarriage extended with 650 mm (26") shoes; transport width undercarriage retracted with 650 mm (26") shoes and no steps | Track gauge undercarriage extended with 650 mm (26") shoes; transport width undercarriage retracted with 650 mm (26") shoes and no steps |
Working Ranges & Forces
Maximum Digging Depth | 8570 mm | 28.1 ft |
Boom | Reach 7.8m (25'7") | Reach 7.8m (25'7") |
Stick | R3.6m (11'10") | R3.6m (11'10") |
Bucket | SD 3.3 m³ (4.32 yd³) | SD 3.3 m³ (4.32 yd³) |
Maximum Reach at Ground Level | 13160 mm | 43.2 ft |
Maximum Cutting Height | 12550 mm | 41.2 ft |
Maximum Loading Height | 8430 mm | 27.7 ft |
Minimum Loading Height | 3310 mm | 10.1 ft |
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | 8440 mm | 27.8 ft |
Maximum Vertical Wall Digging Depth | 6910 mm | 22.8 ft |
Bucket Digging Force - ISO | 358 kN | 80550 ft·lbf |
Stick Digging Force - ISO | 295 kN | 66390 ft·lbf |
Air Conditioning System
Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.00 kg (2.2lb) of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons). | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.00 kg (2.2lb) of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons). |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
CAB
High-resolution 254 mm (10") LCD touch screen monitor |
Heated seat with air-adjustable suspension (Deluxe only) |
Heated and cooled seat with auto adjustable suspension (Premium only) |
Sound suppressed cab with viscous mounts |
Automatic bi-level air conditioner |
Jog dial and shortcut keys for monitor control |
Keyless push-to-start engine control |
Height-adjustable console, infinite with no tool |
Tilt-up left-side console |
51 mm (2") orange seat belt |
Bluetooth integrated radio (including USB, aux port and microphone) |
2 x 12V DC outlets |
Document storage |
Rear head storage net and lunchbox storage net |
Cup and bottle holders |
Openable two-piece front window |
Upper radial wiper with washer |
Parallel wiper with washer (Premium only) |
Openable polycarbonate skylight hatch (Premium only) |
LED dome light |
Floor welcome light |
Roller front sunscreen |
Roller rear sunscreen (Premium standard) |
Rear window emergency exit |
Washable floor mat |
Beacon Ready |
CAT TECHNOLOGY
VisionLink® |
Remote Flash |
Remote Troubleshoot |
Operator Coaching |
Compatibility with radios and base stations from Trimble, Topcon, and Leica |
Capability to install 3D grade systems from Trimble, Topcon, and Leica |
Cat Grade 2D |
Cat Assist (Grade, Boom, Bucket, Swing, Lift) |
Cat Payload (Static Weigh, Semiautomatic Calibration, Payload/Cycle Information, USB Reporting Capability) |
Work tool recognition (Requires PL161 attachment locator on work tool and Bluetooth receiver on machine) |
Work tool tracking (Requires PL161 attachment locator on work tool and Bluetooth receiver on machine) |
ELECTRICAL SYSTEM
Maintenance-free 1,400 CCA batteries (x2) |
Centralized electrical disconnect switch |
Chassis light |
Exterior lights (integrated into storage box) |
ENGINE
Three selectable modes: Power, Smart, and Eco |
Auto engine speed control |
Up to 4500m (14,760 ft) altitude capability |
52°C (126°F) high-ambient cooling capacity |
-18°C (-0.4°F) cold start capability |
Hydraulic reverse fan |
Double element air filter with integrated pre-cleaner |
3 vertical side-by-side cooling system |
95 Amp alternator |
HYDRAULIC SYSTEM
Boom and stick regeneration circuit |
Electronic main control valve |
Dedicated closed loop swing circuit |
Auto heavy lift |
Auto hydraulic oil warmup |
Auto swing parking brake |
High performance hydraulic return filter |
Two speed travel |
Bio hydraulic oil capability |
SAFETY AND SECURITY
Caterpillar One Key security system |
Lockable external tool / storage box |
Lockable door, fuel, and hydraulic tank locks |
Lockable disconnect switch |
Service platform with anti-skid plate & recessed bolts |
Right hand handrail and hand hold (ISO 2867:2011 compliant) |
Visibility mirror package |
Signaling/warning horn |
Ground-level secondary engine shutoff switch |
Rearview and right-hand-sideview cameras |
Walkway |
Travel alarm (North America only) |
2D E-Fence (E-ceiling, E-floor, E-swing, E-wall, E-cab avoidance) |
Auto hammer stop |
SERVICE AND MAINTENANCE
Integrated vehicle health management system |
Auto lube ready |
Grouped location of engine oil & fuel filters |
Sampling ports for Scheduled Oil Sampling (S·O·S℠) |
QuickEvac maintenance ready |
UNDERCARRIAGE AND STRUCTURES
Long variable gauge undercarriage |
Swivel guard |
Grease lubricated track |
HD travel motor guard |
Standard counterweight |
HD bottom guard |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
Cat® 374– More Production and Durability with Less Maintenance
The unique capabilities and features of the Cat® 374 improve your operation when it comes to efficiency, production, and safety. With 10% more swing torque and a hydrostatic swing circuit, the 374 recovers energy while swinging and can load up to 33 40-ton trucks an hour. Equipped with the SD5.0m3 bucket, this machine can load a 70-ton off-road truck in 7 passes. Built for durability, the 374 is structurally sound with reinforced track rollers, booms, sticks upper and lower frames. Reduced hydraulic oil capacity, improved filters with longer service intervals, and an integrated auto-lube-ready system save you up to 20% in maintenance costs. The 374 offers the latest technology and data, allowing you to make informed, smart decisions in a competitive industry. Improved all-around visibility helps keep your jobsite and employees safe while enhancing productivity.
Net Power - ISO 9249 | 361 kW | 484 HP |
Net Power - ISO 9249 (DIN) | 491 hp (metric) | 491 hp (metric) |
Engine Model | Cat C15 | Cat C15 |
Engine Power - ISO 14396 | 362 kW | 485 HP |
Engine Power - ISO 14396 (DIN) | 492 hp (metric) | 492 hp (metric) |
Bore | 137 mm | 5.4 in |
Stroke | 171 mm | 6.7 in |
Displacement | 15.2 l | 928 in³ |
Biodiesel Capability | Up to B20¹ | Up to B20¹ |
Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, and Japan 2014 emission standards. | Meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, and Japan 2014 emission standards. |
Note (1) | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,700 rpm. Advertised power is tested per the specified standard in effect at time of manufacture. | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,700 rpm. Advertised power is tested per the specified standard in effect at time of manufacture. |
Note (2) | ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels.Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. | ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels.Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. |
Hydraulic System
Main System - Maximum Flow - Implement | 896 l/min | 237 gal/min |
Maximum Pressure - Equipment | 37000 kPa | 5366 psi |
Maximum Pressure - Equipment - Lift Mode | 38000 kPa | 5511 psi |
Maximum Pressure - Travel | 35000 kPa | 5076 psi |
Maximum Pressure - Swing | 35000 kPa | 5076 psi |
Swing Mechanism
Swing Speed | 6.34 r/min | 6.34 r/min |
Maximum Swing Torque | 298 kN·m | 220000 ft·lbf |
Weights
Operating Weight | 71700 kg | 158200 lb |
Note | Long Variable Gauge undercarriage, Reach boom, R4.67VB (15'4") stick, SD 3.3 m³ (4.32 yd³) bucket, 900 mm (35") HD double grouser shoes and removal type counterweight. | Long Variable Gauge undercarriage, Reach boom, R4.67VB (15'4") stick, SD 3.3 m³ (4.32 yd³) bucket, 900 mm (35") HD double grouser shoes and removal type counterweight. |
Service Refill Capacities
Fuel Tank Capacity | 920 l | 243 gal (US) |
Cooling System | 71 l | 19 gal (US) |
Engine Oil | 62 l | 16 gal (US) |
Swing Drive | 20 l | 5 gal (US) |
Final Drive - Each | 32 l | 9 gal (US) |
Hydraulic System - Including Tank | 620 l | 164 gal (US) |
Hydraulic Tank | 326 l | 86 gal (US) |
DEF Tank | 80 l | 21 gal (US) |
Dimensions
Boom | Reach 7.8m (25'7") | Reach 7.8m (25'7") |
Stick | R3.6m (11'10") | R3.6m (11'10") |
Bucket | SD 3.3 m³ (4.32 yd³) | SD 3.3 m³ (4.32 yd³) |
Shipping Height - Top of Cab | 3559 mm | 11.8 ft |
Handrail Height | 3982 mm | 13 ft |
Shipping Length | 13652 mm | 44.9 ft |
Tail Swing Radius | 4171 mm | 13.8 ft |
Counterweight Clearance | 1494 mm | 4.1 ft |
Ground Clearance | 782 mm | 2.6 ft |
Track Length | 5873 mm | 19.3 ft |
Track Length to Center of Rollers | 4705 mm | 15.5 ft |
Track Gauge | 3410 mm | 11.2 ft |
Transport Width | 3400 mm | 11.1 ft |
Note | Track gauge undercarriage extended with 650 mm (26") shoes; transport width undercarriage retracted with 650 mm (26") shoes and no steps | Track gauge undercarriage extended with 650 mm (26") shoes; transport width undercarriage retracted with 650 mm (26") shoes and no steps |
Working Ranges & Forces
Maximum Digging Depth | 8570 mm | 28.1 ft |
Boom | Reach 7.8m (25'7") | Reach 7.8m (25'7") |
Stick | R3.6m (11'10") | R3.6m (11'10") |
Bucket | SD 3.3 m³ (4.32 yd³) | SD 3.3 m³ (4.32 yd³) |
Maximum Reach at Ground Level | 13160 mm | 43.2 ft |
Maximum Cutting Height | 12550 mm | 41.2 ft |
Maximum Loading Height | 8430 mm | 27.7 ft |
Minimum Loading Height | 3310 mm | 10.1 ft |
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | 8440 mm | 27.8 ft |
Maximum Vertical Wall Digging Depth | 6910 mm | 22.8 ft |
Bucket Digging Force - ISO | 358 kN | 80550 ft·lbf |
Stick Digging Force - ISO | 295 kN | 66390 ft·lbf |
Air Conditioning System
Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.00 kg (2.2lb) of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons). | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.00 kg (2.2lb) of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons). |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
CAB
High-resolution 254 mm (10") LCD touch screen monitor |
Heated seat with air-adjustable suspension (Deluxe only) |
Heated and cooled seat with auto adjustable suspension (Premium only) |
Sound suppressed cab with viscous mounts |
Automatic bi-level air conditioner |
Jog dial and shortcut keys for monitor control |
Keyless push-to-start engine control |
Height-adjustable console, infinite with no tool |
Tilt-up left-side console |
51 mm (2") orange seat belt |
Bluetooth integrated radio (including USB, aux port and microphone) |
2 x 12V DC outlets |
Document storage |
Rear head storage net and lunchbox storage net |
Cup and bottle holders |
Openable two-piece front window |
Upper radial wiper with washer |
Parallel wiper with washer (Premium only) |
Openable polycarbonate skylight hatch (Premium only) |
LED dome light |
Floor welcome light |
Roller front sunscreen |
Roller rear sunscreen (Premium standard) |
Rear window emergency exit |
Washable floor mat |
Beacon Ready |
CAT TECHNOLOGY
VisionLink® |
Remote Flash |
Remote Troubleshoot |
Operator Coaching |
Compatibility with radios and base stations from Trimble, Topcon, and Leica |
Capability to install 3D grade systems from Trimble, Topcon, and Leica |
Cat Grade 2D |
Cat Assist (Grade, Boom, Bucket, Swing, Lift) |
Cat Payload (Static Weigh, Semiautomatic Calibration, Payload/Cycle Information, USB Reporting Capability) |
Work tool recognition (Requires PL161 attachment locator on work tool and Bluetooth receiver on machine) |
Work tool tracking (Requires PL161 attachment locator on work tool and Bluetooth receiver on machine) |
ELECTRICAL SYSTEM
Maintenance-free 1,400 CCA batteries (x2) |
Centralized electrical disconnect switch |
Chassis light |
Exterior lights (integrated into storage box) |
ENGINE
Three selectable modes: Power, Smart, and Eco |
Auto engine speed control |
Up to 4500m (14,760 ft) altitude capability |
52°C (126°F) high-ambient cooling capacity |
-18°C (-0.4°F) cold start capability |
Hydraulic reverse fan |
Double element air filter with integrated pre-cleaner |
3 vertical side-by-side cooling system |
95 Amp alternator |
HYDRAULIC SYSTEM
Boom and stick regeneration circuit |
Electronic main control valve |
Dedicated closed loop swing circuit |
Auto heavy lift |
Auto hydraulic oil warmup |
Auto swing parking brake |
High performance hydraulic return filter |
Two speed travel |
Bio hydraulic oil capability |
SAFETY AND SECURITY
Caterpillar One Key security system |
Lockable external tool / storage box |
Lockable door, fuel, and hydraulic tank locks |
Lockable disconnect switch |
Service platform with anti-skid plate & recessed bolts |
Right hand handrail and hand hold (ISO 2867:2011 compliant) |
Visibility mirror package |
Signaling/warning horn |
Ground-level secondary engine shutoff switch |
Rearview and right-hand-sideview cameras |
Walkway |
Travel alarm (North America only) |
2D E-Fence (E-ceiling, E-floor, E-swing, E-wall, E-cab avoidance) |
Auto hammer stop |
SERVICE AND MAINTENANCE
Integrated vehicle health management system |
Auto lube ready |
Grouped location of engine oil & fuel filters |
Sampling ports for Scheduled Oil Sampling (S·O·S℠) |
QuickEvac maintenance ready |
UNDERCARRIAGE AND STRUCTURES
Long variable gauge undercarriage |
Swivel guard |
Grease lubricated track |
HD travel motor guard |
Standard counterweight |
HD bottom guard |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |