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Engine 
Engine Model
Cat C7.1
Cat C7.1
Cat C4.4
Net Power - ISO 9249
172 hp
129 kW
170 hp
127 kW
Engine Power - ISO 14396
174 hp
129 kW
173 hp
129 kW
Net Power - ISO 9249 (DIN)
175 hp (metric)
175 hp (metric)
173 hp (metric)
173 hp (metric)
Engine Power - ISO 14396 (DIN)
176 hp (metric)
176 hp (metric)
175 hp (metric)
175 hp (metric)
Bore
4 in
105 mm
4 in
105 mm
Stroke
5 in
135 mm
5 in
127 mm
Displacement
428 in³
7 l
428 in³
7.01 l
269 in³
4.4 l
Biodiesel Capability
B20¹
B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V emission standards.
Meets U.S. EPA Tier 4 Final, EU 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 1,800 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 2,200 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) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 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. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 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. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
Drive
Maximum Travel Speed
3 mile/h
4.9 km/h
3.5 mile/h
5.7 km/h
Maximum Drawbar Pull
57,551 lbf
256 kN
70320 lbf
313 kN
45,187 lbf
201 kN
Hydraulic System
Main System - Maximum Flow
124 gpm
468 L/min
113 gpm
429 L/min
Maximum Pressure - Equipment
5076 psi
35000 kPa
5076 psi
35000 kPa
Maximum Pressure - Equipment - Lift Mode
5511 psi
38000 kPa
5511 psi
38000 kPa
Maximum Pressure - Travel
5076 psi
35000 kPa
5076 psi
35000 kPa
Maximum Pressure - Swing
4351 psi
30000 kPa
3989 psi
27500 kPa
Swing Mechanism
Swing Speed
11 r/min
11 r/min
11 r/min
11 r/min
Maximum Swing Torque
72,281 lbf·ft
98 kN·m
60,480 lbf·ft
82 kN·m
Weights
General Forestry
66,140 lb
30000 kg
59,700 lb
27100 kg
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 1,800 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 2,200 rpm. Advertised power is tested per the specified standard in effect at time of manufacture.
Log Loader (U/U)
69,640 lb
31590 kg
63,300 lb
28700 kg
Note (2)
¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 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. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 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. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
Service Refill Capacities
Fuel Tank
262 gal (US)
990 l
91.1 gal (US)
345 l
Cooling System
5 gal (US)
17.5 l
7.9 gal (US)
30 l
6.6 gal (US)
25 l
Engine Oil
7 gal (US)
25 l
4 gal (US)
15 l
Swing Drive
3 gal (US)
11.5 l
2.4 gal (US)
9 l
1.3 gal (US)
5 l
Final Drive - Each
1 gal (US)
4.5 l
2.9 gal (US)
11 l
1.3 gal (US)
5 l
Hydraulic System - Including Tank
69 gal (US)
262 l
65.6 gal (US)
248 l
Hydraulic Tank
38 gal (US)
143 l
46.2 gal (US)
175 l
34.1 gal (US)
129 l
DEF Tank
11 gal (US)
41 l
12.2 gal (US)
46 l
6.9 gal (US)
26 l
Dimensions
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 1,800 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 2,200 rpm. Advertised power is tested per the specified standard in effect at time of manufacture.
Shipping Height - Tilted Cab
11.2 ft
3400 mm
11.3 ft
3420 mm
Handrail Height
10.8 ft
3270 mm
9.8 ft
2990 mm
Length: General Forestry - Boom Stretched Out
42.2 ft
12840 mm
38.3 ft
11690 mm
Length: Log Loader - Boom Stretched Out
44.9 ft
13690 mm
44.1 ft
13430 mm
Tail Swing Radius
10.3 ft
3130 mm
137.8 in
3501 mm
9.3 ft
2830 mm
Counterweight Clearance
4.2 ft
1280 mm
3.4 ft
1040 mm
Ground Clearance
2.5 ft
750 mm
30.5 in
774 mm
Track Length
15.3 ft
4670 mm
198.2 in
5035 mm
14.7 ft
4460 mm
Track Length to Center of Rollers
158 ft
4020 mm
11.9 ft
3620 mm
Track Gauge
9.2 ft
2790 mm
110.6 in
2809 mm
7.8 ft
2380 mm
Transport Width
11.4 ft
3490 mm
11 ft
3350 mm
Working Ranges
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder
28.8 ft
8800 mm
32.3 ft
9830 mm
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under
35.9 ft
10960 mm
36 ft
10970 mm
Air Conditioning System
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 1,800 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 2,200 rpm. Advertised power is tested per the specified standard in effect at time of manufacture.