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Engine 
Engine Model
Cat C4.4
Cat C7.1
Cat C7.1
Net Power - ISO 9249
170 hp
127 kW
172 hp
129 kW
Engine Power - ISO 14396
173 hp
129 kW
174 hp
129 kW
Net Power - ISO 9249 (DIN)
173 hp (metric)
173 hp (metric)
175 hp (metric)
175 hp (metric)
Engine Power - ISO 14396 (DIN)
175 hp (metric)
175 hp (metric)
176 hp (metric)
176 hp (metric)
Bore
4 in
105 mm
4 in
105 mm
Stroke
5 in
127 mm
5 in
135 mm
Displacement
269 in³
4.4 l
428 in³
7.01 l
428 in³
7 l
Biodiesel Capability
B20¹
B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Meets U.S. EPA Tier 4 Final, EU Stage V 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 2,200 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 1,800 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
3.5 mile/h
5.7 km/h
3 mile/h
4.9 km/h
Maximum Drawbar Pull
45,187 lbf
201 kN
70320 lbf
313 kN
57,551 lbf
256 kN
Hydraulic System
Main System - Maximum Flow
113 gpm
429 L/min
124 gpm
468 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
3989 psi
27500 kPa
4351 psi
30000 kPa
Swing Mechanism
Swing Speed
11 r/min
11 r/min
11 r/min
11 r/min
Maximum Swing Torque
60,480 lbf·ft
82 kN·m
72,281 lbf·ft
98 kN·m
Weights
General Forestry
59,700 lb
27100 kg
66,140 lb
30000 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 2,200 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 1,800 rpm. Advertised power is tested per the specified standard in effect at time of manufacture.
Log Loader (U/U)
63,300 lb
28700 kg
69,640 lb
31590 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).
Forestry Road Builder
62,170 lb
28200 kg
Note (3)
High LC, 165 mm (6.5”) fixed riser SEC, 5.7 m (18'7") reach boom, R2.9 (9'7") thumb ready stick, 700mm (28") double grouser shoes, 1.2 m³ (1.6 yd³) HD bucket.
Log Loader (MH Stick)
63,050 lb
28600 kg
Note (4)
High LC, 1219 mm (48") tilting riser SEC, 5.9 m (19’6”) Straight boom, 5.8 m (19') drop nose log loader stick, 700mm (28") double grouser shoes, no grapple
Service Refill Capacities
Fuel Tank
91.1 gal (US)
345 l
262 gal (US)
990 l
Cooling System
6.6 gal (US)
25 l
7.9 gal (US)
30 l
5 gal (US)
17.5 l
Engine Oil
4 gal (US)
15 l
7 gal (US)
25 l
Swing Drive
1.3 gal (US)
5 l
2.4 gal (US)
9 l
3 gal (US)
11.5 l
Final Drive - Each
1.3 gal (US)
5 l
2.9 gal (US)
11 l
1 gal (US)
4.5 l
Hydraulic System - Including Tank
65.6 gal (US)
248 l
69 gal (US)
262 l
Hydraulic Tank
34.1 gal (US)
129 l
46.2 gal (US)
175 l
38 gal (US)
143 l
DEF Tank
6.9 gal (US)
26 l
12.2 gal (US)
46 l
11 gal (US)
41 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 2,200 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 1,800 rpm. Advertised power is tested per the specified standard in effect at time of manufacture.
Shipping Height - Tilted Cab
11.3 ft
3420 mm
11.2 ft
3400 mm
Handrail Height
9.8 ft
2990 mm
10.8 ft
3270 mm
Length: General Forestry - Boom Stretched Out
38.3 ft
11690 mm
42.2 ft
12840 mm
Length: Log Loader - Boom Stretched Out
44.1 ft
13430 mm
44.9 ft
13690 mm
Tail Swing Radius
9.3 ft
2830 mm
137.8 in
3501 mm
10.3 ft
3130 mm
Counterweight Clearance
3.4 ft
1040 mm
4.2 ft
1280 mm
Ground Clearance for Standard Undercarriage
1.4 ft
435 mm
Ground Clearance for High Undercarriage
2 ft
610 mm
Track Length
14.7 ft
4460 mm
198.2 in
5035 mm
15.3 ft
4670 mm
Track Length to Center of Rollers
11.9 ft
3620 mm
158 ft
4020 mm
Track Gauge
7.8 ft
2380 mm
110.6 in
2809 mm
9.2 ft
2790 mm
Transport Width
11 ft
3350 mm
11.4 ft
3490 mm
Working Ranges
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder
32.3 ft
9830 mm
28.8 ft
8800 mm
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under
36 ft
10970 mm
35.9 ft
10960 mm
Max Reach at Stick Nose at Ground Level - General Forestry Processor
29.1 ft
8860 mm
Max Reach at Stick Nose at Ground Level – Log Loader MH Stick
38.1 ft
11620 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 2,200 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 1,800 rpm. Advertised power is tested per the specified standard in effect at time of manufacture.