Cat 446B vs. Case 851FX Backhoe loaders Comparison

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

Comparison

Highlight differences

Cat 446 Backhoe loaders

Case 851 Backhoe loaders

Operational specifications

Arm crowding force

Arm crowding force 4,898.8 kg

Arm crowding force -

Years

Years 1989-2004

Years 2022-2025

Market Average

Market Average AED 437,000

Market Average AED 210,000

Price

Price AED 158,000

Price AED 189,000

General

Backhoe digging depth

Backhoe digging depth 5.24 m

Backhoe digging depth 4,700 mm

Backhoe dump height

Backhoe dump height 2.04 m

Backhoe dump height 3,800 mm

Bucket capacity

Bucket capacity 1.15 cu m

Bucket capacity 0.3 cu m

Bucket digging force

Bucket digging force 6,871.93 kg

Bucket digging force -

Bucket width

Bucket width 243 cm

Bucket width -

Displacement

Displacement 4,391.74 cu cm

Displacement 3,400 cu cm

Loader dump height

Loader dump height 2.71 m

Loader dump height 2,660 mm

Loader dump reach

Loader dump reach 0.88 m

Loader dump reach 840 mm

Lifting capacity

Lifting capacity 3,905.44 kg

Lifting capacity 3,700 kg

Max speed forward

Max speed forward 31.54 kph

Max speed forward 39.2 kph

Operating weight

Operating weight 8,891 kg

Operating weight 8,100 kg

Transmission type

Transmission type auto-shift

Transmission type Powershuttle with TC

Wheelbase

Wheelbase 2.26 m

Wheelbase 2.18 m

Engine model

Engine model -

Engine model FPT F5BFL413A*W

Max torque

Max torque -

Max torque 459 Nm

Tire size

Tire size -

Tire size (F) Standard 9x16-16 PR, (R) Standard 16.9x28-12 PR

Backhoe

Backhoe reach from swivel

Backhoe reach from swivel 6.61 m

Backhoe reach from swivel 5,900 mm

Bucket rotation

Bucket rotation 169 º

Bucket rotation 204 º

Engine

Bore

Bore 10.67 cm

Bore -

Gross power

Gross power 82.03 kw

Gross power 72 kw

Net power

Net power 76.06 kw

Net power -

Number of cylinders

Number of cylinders 4

Number of cylinders -

Power measured @

Power measured @ 2,200 rpm

Power measured @ -

Stroke

Stroke 12.7 cm

Stroke -

Torque rise

Torque rise 32.6 %

Torque rise -

Emissions

Emissions -

Emissions CEV Stage IV

Operating specifications

Brake system

Brake system Fully enclosed, hydraulic, multidisk

Brake system Wet Multi Discs, 4 Discs

Cab ROPS

Cab ROPS SAE J394, SAE J1040 Apr 88, ISO 3471 1986

Cab ROPS -

Cab sound

Cab sound ANSI/SAE J1166 May 90 is 81 dB (A)

Cab sound -

Extended backhoe digging depth

Extended backhoe digging depth 6.55 m

Extended backhoe digging depth -

Extended backhoe dump height

Extended backhoe dump height 4.91 m

Extended backhoe dump height -

Extended backhoe dump reach

Extended backhoe dump reach 3.26 m

Extended backhoe dump reach -

Extended backhoe reach from swivel

Extended backhoe reach from swivel 7.89 m

Extended backhoe reach from swivel -

Exterior sound

Exterior sound SAE J88 Jun 86, is 76dB (A)

Exterior sound -

Rack back angle

Rack back angle -

Rack back angle 45 º

Hydraulic system

Circuit type

Circuit type Closed center

Circuit type -

Pump flow cap

Pump flow cap 178.27 lpm

Pump flow cap 154 lpm

Relief valve pressure

Relief valve pressure -

Relief valve pressure 209.94 bar

Pump type

Pump type -

Pump type Closed center

Refill capacities

Engine oil cap

Engine oil cap 10.98 liter

Engine oil cap 9.1 liter

Tires

Front tires size (2WD)

Front tires size (2WD) 14.5/75 x16.1,10PR,F3 / 12.5x20,10PR,R4

Front tires size (2WD) -

Rear tires size

Rear tires size 21Lx24,12PR,R4

Rear tires size -

Service refill capacities

Fuel cap

Fuel cap 125.28 liter

Fuel cap 129 liter

Hydraulic fluid cap

Hydraulic fluid cap 155.19 liter

Hydraulic fluid cap 80 liter

Cooling fluid cap

Cooling fluid cap -

Cooling fluid cap 20 liter

Rear axle fluid capacity

Rear axle fluid capacity -

Rear axle fluid capacity 17.1 liter

Front axle fluid capacity

Front axle fluid capacity -

Front axle fluid capacity 8.9 liter

Transmission fluid cap

Transmission fluid cap -

Transmission fluid cap 18 liter

Dimensions

Ground clearance

Ground clearance 0.34 m

Ground clearance -

Height - top of cab

Height - top of cab 2.87 m

Height - top of cab -

Overall Length

Overall Length 7.68 m

Overall Length -

Overall Width

Overall Width 2.44 m

Overall Width -

Turning radius

Turning radius 5.73 m

Turning radius -

Transport length

Transport length -

Transport length 6 m

Transport width

Transport width -

Transport width 2 m

Loader

Loader digging depth

Loader digging depth 16.26 cm

Loader digging depth 110 mm

Breakout force

Breakout force -

Breakout force 54.11 kN

Transmission

Max speed reverse

Max speed reverse 20.76 kph

Max speed reverse -

Number of forward gears

Number of forward gears 4

Number of reverse gears

Number of reverse gears 3

Number of reverse gears 4

Performance

Looking at performance technical specs and key features the Cat 446B Backhoe loaders excels in terms of engine power at and operating weight compared to other models like the Case 851FX Backhoe loaders.

User rating

Owners operators and fleet managers recommend the Cat 446B Backhoe loaders for its high reliability and endurance in diverse applications. The same can be said about the Case 851FX Backhoe loaders.