- Length W/ Blade: 21.56 ft / 6570 mm
- Width Over Tracks: 8.86 ft / 2700 mm
- Height To Top Of Cab: 11.52 ft / 3510 mm
- Length Of Track On Ground: 10.54 ft / 3210 mm
Caterpillar D8R Series II
The Caterpillar D8R Series II is a 37.6 t-class crawler tractor with a 310 hp engine.

Crawler tractors are commonly used for pushing, grading and clearing material where tracked traction is useful. Published rows for Caterpillar D8R Series II include published operating weight of 82960 lb / 37630 kg, published engine power of 310 hp / 231.2 kw, the published “Length W/ Blade” field of 21.56 ft / 6570 mm. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Length W/ Blade” field (21.56 ft / 6570 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Width Over Tracks” field (8.86 ft / 2700 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Height To Top Of Cab” field (11.52 ft / 3510 mm) with the specific machine's configuration and records; options and condition can differ.
What changes with this option
Compared with the base Caterpillar D8R: 16 of 27 published specifications change.
| Section | Specification | Caterpillar D8R | Caterpillar D8R Series II |
|---|---|---|---|
| Dimensions | Length W/ Blade | 21 ft / 6398 mm | 21.56 ft / 6570 mm |
| Dimensions | Width Over Tracks | 8.67 ft / 2642 mm | 8.86 ft / 2700 mm |
| Dimensions | Height To Top Of Cab | 11.48 ft / 3498 mm | 11.52 ft / 3510 mm |
| Dimensions | Length Of Track On Ground | 10.52 ft / 3206 mm | 10.54 ft / 3210 mm |
| Dimensions | Ground Clearance | 1.74 ft / 528 mm | 1.99 ft / 606 mm |
| Dimensions | Length W/O Blade | 14.95 ft / 4554 mm | 16.18 ft / 4930 mm |
| Undercarriage | Track Gauge | 6.84 ft / 2082 mm | 6.83 ft / 2080 mm |
| Undercarriage | Ground Contact Area | 5554 in2 / 3.59 m2 | 5544 in2 / 3.58 m2 |
| Undercarriage | Ground Pressure | 13.1 psi / 90.33 kPa | 14.67 psi / 101.15 kPa |
| Engine | Engine Model | 3406C / 3406C | 3406E TA / 3406E TA |
| Engine | Gross Power | 328 hp / 244.6 kw | 310 hp / 231.2 kw |
| Engine | Power Measured @ | 2100 rpm / 2100 rpm | 2000 rpm / 2000 rpm |
| Engine | Displacement | 893 cu in / 14.7 L | 891 cu in / 14.6 L |
| Operational | Operating Weight | 73850 lb / 33497.8 kg | 82960 lb / 37630 kg |
| Transmission | Max Speed - Forward | 6.7 mph / 10.8 km/h | 6.6 mph / 10.7 km/h |
| Standard Blade | Width | 13 ft / 3937 mm | 13 ft / 3940 mm |
Not published for this option: Number Of Shoes Per Side, Track Pitch, Net Power, Aspiration, Cooling System Fluid Capacity, Engine Oil Capacity, Hydraulic Fluid Capacity, Powertrain Fluid Capacity, Final Drives Fluid Capacity, Operating Voltage, Alternator Supplied Amperage, Transmission Type, Pump Type, Relief Valve Pressure, Pump Flow Capacity
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Manufacturer-published specifications.