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Engine 
Engine Model
Cat C9
Cat C4.4
Cat C7.1
Power - Net
198 hp
148 kW
170 hp
127 kW
Biodiesel Capability
Up to B100*
Note (1)
Net power advertised is the power available at the flywheel when engine is equipped with a fan at maximum speed, air cleaner, muffler, alternator. Advertised power is tested per the specified standard in effect at the time of manufacture.
Net power available at the flywheel when the engine is equipped with fan, air cleaner, aftertreatment, and alternator with engine speed at 2100 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Rated horsepower at 1770 rpm. Net power advertised is the power available at the engine flywheel when the engine is equipped with a fan, air cleaner, clean emissions module and alternator. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)
*Cat engines are compatible with the following renewable, alternative, and bio-fuels** with lower greenhouse gas emission impact: Up to B20 biodiesel (FAME)***, up to 100% HVO and GTL renewable fuels. **Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. ***Up to B100 capable when equipped with optional B100-compliant fuel lines. Please consult the Operations and Maintenance Manual (OMM) for further information.
Cat 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). ** Lower-carbon intensity fuels do not significantly reduce GHGs at the tailpipe.
Cat 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 30% biodiesel.
D6R2 (Tier 2/Stage II)
Emissions
China Nonroad II, equivalent to U.S. EPA Tier 2/ EU Stage II
U.S. EPA Tier 4 Final/EU Stage V/Japan 2014/Korea Stage V
U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)/Korea Stage V
Standard - Net Power - Rated - ISO 9249/SAE J1349
189 hp
141 kW
Standard - Net Power - Rated - ISO 9249 (DIN)
192 mhp
192 mhp
XL/LGP - Net Power - Rated - ISO 9249/SAE J1349
212 hp
158 kW
XL/LGP - Net Power - Rated - ISO 9249 (DIN)
215 mhp
215 mhp
D6R2 (Tier 3/Stage III)
Emissions
China Nonroad II, equivalent to U.S. EPA Tier 2/ EU Stage II
U.S. EPA Tier 4 Final/EU Stage V/Japan 2014/Korea Stage V
U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)/Korea Stage V
Standard - Net Power - Rated - ISO 9249/SAE J1349
189 hp
141 kW
Standard - Net Power - Rated - ISO 9249 (DIN)
192 mhp
192 mhp
XL/LGP - Net Power - Rated - ISO 9249/SAE J1349
212 hp
158 kW
XL/LGP - Net Power - Rated - ISO 9249 (DIN)
215 mhp
215 mhp
Service Refill Capacities
Fuel Tank
112 gal (US)
424 l
69 gal (US)
260 l
83.2 gal (US)
315 l
Weights
Operating Weight
41853 lb
18984 kg
29259 lb
13272 kg
42263 lb
19170 kg
Operating - D6R2 (S)
41853 lb
18984 kg
Operating - D6R2 (SU)
42033 lb
19066 kg
Operating - D6R2 (A)
42875 lb
19448 kg
Operating - D6R2 XL (SU)
43903 lb
19914 kg
Operating - D6R2 XL (A)
44024 lb
19969 kg
Operating - D6R2 LGP (S)
47754 lb
21661 kg
Undercarriage - Standard
Ground Pressure - A-Blade (ISO 16754)
9 psi
64 kPa
Undercarriage - XL
Ground Pressure - SU - Blade (ISO 16754)
9 psi
61 kPa
Undercarriage - LGP
Ground Pressure - SLGP - Blade (ISO 16754)
5 psi
35 kPa
Blades
S-Blade Capacity
5.2 yd³
4 m³
SU - Blade Capacity
7.3 yd³
5.6 m³
A-Blade Capacity
5.2 yd³
4 m³
SU XL - Capacity
7.3 yd³
5.6 m³
A XL - Capacity
5.2 yd³
4 m³
S-Blade Capacity - LGP
5 yd³
3.8 m³
S-Blade Width
132.3 in
3360 mm
SU - Blade Width
128.3 in
3260 mm
A-Blade Width
164 in
4166 mm
SU XL - Width
128.3 in
3260 mm
A XL - Width
164 in
4166 mm
S-Blade Width - LGP
160 in
4063 mm