Category : Crawler Dozers ➔ Manufacturer : Caterpillar ➔ Model : D7R XR ➔
The Caterpillar D7R XR is a crawler dozer designed for heavy earthmoving, grading, and site preparation work. Built on the D7R platform, the XR configuration is associated with extended track gauge and improved stability for demanding dozing applications. It is commonly used in construction, mining, land clearing, and road building where traction, blade control, and durability are required. The D7R XR typically features a diesel engine, hydrostatic or powershift drivetrain depending on configuration, and Caterpillar undercarriage components. As a crawler dozer, it is suited to pushing material over rough terrain and operating in high-load conditions.
Blades
Caterpillar D7R XR Crawler Dozer Blades specifications
A-Blade Width
13.50 ft (4.11 m)
Angle Straight Blade Width
14.75 ft (4.50 m)
Blade Type
S, SU, U, A
S-Blade Width
12.80 ft (3.90 m)
Su - Blade Width
12.10 ft (3.69 m)
Dimensions
Caterpillar D7R XR Crawler Dozer Dimensions specifications
Ground Clearance
1.36 ft (0.41 m)
Height
7.90 ft (2.41 m)
Height - Rops/Canopy
11.70 ft (3.57 m)
Height To Top Of Cab
11.73 ft (3.58 m)
Length Of Track On Ground
10.01 ft (3.05 m)
Length W/ Blade
19.81 ft (6.04 m)
Length W/O Blade
15.54 ft (4.74 m)
Overall Length - Basic Tractor - With Drawbar
15.50 ft (4.72 m)
Overall Length - With Blade
258.00 in (655.32 cm)
Width Over Tracks
9.42 ft (2.87 m)
Engine
Caterpillar D7R XR Crawler Dozer Engine specifications
Aspiration
Turbocharged
Displacement
640.80 cu in (10,500.85 cu cm)
Engine Make
2236
Engine Model
3306T
Flywheel Power
230.00 hp (171.51 kw)
Flywheel Power - Power Shift
140.00 hp (104.40 kw)
Gross Power
247.00 hp (184.19 kw)
Maximum Flywheel Power
247.00 hp (184.19 kw)
Net Power
230.00 hp (171.51 kw)
Number Of Cylinders
6
Power Measured @
2100 rpm
Hydraulic System
Caterpillar D7R XR Crawler Dozer Hydraulic System specifications
Pump Flow Capacity
46.80 gpm (177.14 lpm)
Pump Type
Piston
Relief Valve Pressure
3306 psi
Operational
Caterpillar D7R XR Crawler Dozer Operational specifications
Alternator Supplied Amperage
70 amps
Cooling System Fluid Capacity
19.90 gal (75.32 l)
Engine Oil Capacity
7.30 gal (27.63 l)
Final Drives Fluid Capacity
3.50 gal (13.25 l)
Fuel Capacity
126.60 gal (479.18 l)
Hydraulic Fluid Capacity
14.30 gal (54.13 l)
Operating Voltage
24 V
Operating Weight
54,100.00 lbs (24,539.38 kg)
Powertrain Fluid Capacity
47.10 gal (178.27 l)
Ripper
Caterpillar D7R XR Crawler Dozer Ripper specifications
Maximum Clearance Raised - Under Tip, Pinned In Bottom Hole
25.20 in (64.01 cm)
Maximum Penetration
29.50 in (74.93 cm)
Number Of Pockets
3
Overall Beam Width
87.10 in (221.23 cm)
Ripper Type
Parallelogram
Service Refill Capacities
Caterpillar D7R XR Crawler Dozer Service Refill Capacities specifications
Cooling System
19.90 gal (75.32 l)
Engine Crankcase
7.20 gal (27.25 l)
Final Drive - Each
3.50 gal (13.25 l)
Fuel Tank
126.60 gal (479.18 l)
Hydraulic Tank
14.30 gal (54.13 l)
Power Train
48.10 gal (182.06 l)
Transmission - Bevel Gear And Steering Clutch Compartments - Torque Converter
48.10 gal (182.06 l)
Standard Blade
Caterpillar D7R XR Crawler Dozer Standard Blade specifications
Capacity
9 cu yd
Cutting Depth
20.80 in (52.83 cm)
Height
60.00 in (152.40 cm)
Width
12.20 ft (3.72 m)
Transmission
Caterpillar D7R XR Crawler Dozer Transmission specifications
1.0 Forward
2.20 mph (3.54 kph)
1.0 Reverse
3.00 mph (4.83 kph)
2.0 Forward
4.00 mph (6.44 kph)
2.0 Reverse
5.10 mph (8.21 kph)
3.0 Forward
6.80 mph (10.94 kph)
3.0 Reverse
8.60 mph (13.84 kph)
Max Speed - Forward
6.80 mph (10.94 kph)
Max Speed - Reverse
8.60 mph (13.84 kph)
Number Of Forward Gears
3
Number Of Reverse Gears
3
Transmission Type
Power Shift
Undercarriage
Caterpillar D7R XR Crawler Dozer Undercarriage specifications
Ground Clearance
0.12 ft (0.04 m)
Ground Contact Area
5768 in2
Ground Pressure
10.46 psi
Number Of Shoes Per Side
41
Number Of Track Rollers Per Side
8
Shoe Type
Extreme Service-Heavy Duty
Shoes/Side
41
Standard Shoe Size
24.02 in (61.01 cm)
Track Gauge
6.50 ft (1.98 m)
Track On Ground
10.00 in (25.40 cm)
Track Rollers/Side
8
Width - Shoe
24.02 in (61.01 cm)
Weights
Caterpillar D7R XR Crawler Dozer Weights specifications
Operating Weight
61,236.00 lbs (27,776.22 kg)
Operating Weight - Power Shift
60,336.00 lbs (27,367.98 kg)
Winch
Caterpillar D7R XR Crawler Dozer Winch specifications
Drum Diameter
12.10 in (30.73 cm)
Drum Width
12.20 in (30.99 cm)
Flange Diameter
21.70 in (55.12 cm)
Increased Tractor Length - Std
3.10 in (7.87 cm)
Oil Capacity
21.40 gal (81.00 l)
Weight*
4,120.50 lbs (1,869.03 kg)
Winch And Bracket Length
48.50 in (123.19 cm)
Winch Case - Width
48.10 in (122.17 cm)
