Cat D7H vs. Cat D8R Crawler dozers Comparison

Compare available technical data for Bulldozers. Find the right details to make your decision easier.

Comparison

Highlight differences

Cat D7 Crawler dozers

Cat D8 Crawler dozers

Engine

Alternator supplied amperage

Alternator supplied amperage 35 Amh

Alternator supplied amperage 50 Amh

Aspiration

Aspiration Turbocharged

Aspiration Turbocharged, aftercooled

Gross power

Gross power 172.26 kw

Gross power 244.6 kw

Net power

Net power 160.33 kw

Net power 227.44 kw

Number of cylinders

Number of cylinders 6

Power measured @

Power measured @ 2,100 rpm

Torque measured @

Torque measured @ -

Torque measured @ 2,200 rpm

Bore

Bore -

Bore 110 cm

Stroke

Stroke -

Stroke 90 cm

Years

Years 2009-2017

Years 2018-2024

Market Average

Market Average AED 1,100,000

Market Average AED 1,510,000

Price

Price AED 900,000

Price AED 1,375,000

Blades

Blade angle

Blade angle 25 º

Blade angle -

General

Blade capacity

Blade capacity 4.51 cu m

Blade capacity 8.8 cu m

Blade width

Blade width 3.84 m

Blade width 3.96 m

Displacement

Displacement 10,500.85 cu cm

Displacement 14,700 cm3

Drive type

Drive type Planetary powershift

Drive type Powershift

Engine model

Engine model 3306

Engine model 3406 DITA

Max speed forward

Max speed forward 11.91 kph

Max speed forward 10.8 kph

Operating voltage

Operating voltage 24 V

Operating weight

Operating weight 23,647 kg

Operating weight 33,490 kg

Engine power

Engine power -

Engine power 305 hp

Max torque

Max torque -

Max torque 1,250 Nm

Dimensions

Blade height

Blade height 1.28 m

Blade height -

Ground clearance

Ground clearance 0.43 m

Ground clearance -

Height - top of cab

Height - top of cab 3.35 m

Height - top of cab -

Length with blade

Length with blade 5.58 m

Length with blade 6.4 m

Length without blade

Length without blade 4.63 m

Length without blade -

Service refill capacities

Cooling fluid cap

Cooling fluid cap 52.61 liter

Cooling fluid cap 92.35 liters

Fuel cap

Fuel cap 488.27 liter

Fuel cap 625.28 liter

Hydraulic fluid cap

Hydraulic fluid cap 115.06 liter

Hydraulic fluid cap 72.29 liter

Refill capacities

Final drives fluid cap

Final drives fluid cap 9.84 liter

Final drives fluid cap 14 liters

Engine oil cap

Engine oil cap -

Engine oil cap 32.55 liter

Undercarriage

Ground contact area

Ground contact area 74,725.18 cu cm

Ground contact area -

Ground pressure

Ground pressure 0.77 bar

Ground pressure -

Number of shoes per side

Number of shoes per side 40

Number of shoes per side 44

Number of track rollers per side

Number of track rollers per side 7

Number of track rollers per side 8

Track gauge

Track gauge 1.98 m

Track gauge 2.1 m

Track length

Track length 2.93 m

Track length -

Track width

Track width 51.05 cm

Track width 56.13 mm

Track pitch

Track pitch -

Track pitch 21.84 cm

Transmission

Max speed reverse

Max speed reverse 14.32 kph

Max speed reverse 13.84 kph

Number of forward gears

Number of forward gears 3

Number of reverse gears

Number of reverse gears 3

Hydraulic system

Pump flow cap

Pump flow cap 175.25 lpm

Pump flow cap 300.15 lpm

Relief valve pressure

Relief valve pressure 227.52 bar

Relief valve pressure 241.31 bar

Pump type

Pump type -

Pump type Piston

Performance

Looking at performance technical specs and key features the Cat D7H Crawler dozers excels in terms of engine power at and operating weight compared to other models like the Cat D8R Crawler dozers.

User rating

Owners operators and fleet managers recommend the Cat D7H Crawler dozers for its high reliability and endurance in diverse applications. The same can be said about the Cat D8R Crawler dozers.