Cat 420

Current-generation Cat 420 backhoe loader (C3.6 engine, Tier 4 Final / Stage V, North American specalog AEHQ8243-04, 2026); Al-Bahar (UAE) lists no 420 or 424 (its range is 426, 426F2, 428, 432, 434, 444), so the North American sheet is used.

UAEUSAGlobal

dig depth: 14'0"
power: 91 hp
Operating weight: 17,271 lb
Shovel capacity: 1.25 yd³

Side

Front

Overall length (loader on ground): 23'5"
Total travel height: 12'0"
Cab roof height: 9'3"
Height to top of exhaust stack: 8'11"
Rear axle centreline to front grille: 8'11"
Wheelbase: 7'3"
Stabiliser spread, operating (centre): 10'10"

Dimensions

Total travel length: 23'6"
Overall width: 7'5"
Rear frame width: 7'7"
Shovel width (GP shovel): 89 in
Height to loader hinge pin (transport): 1'3"
Ground clearance (LH step): 1'0"
Ground clearance (AWD guard): 1'0"
Ground clearance (485 kg counterweight): 0'11"
Front wheel tread gauge: 6'3"
Rear wheel tread gauge: 5'8"
Stabiliser spread, operating (outside): 12'4"
Turning circle, outside front wheels (Inner wheel not braked): 26'11"
Turning circle, outside widest loader bucket (Inner wheel not braked): 35'3"

Backhoe performance

14Max dig depth (SAE maximum, standard stick): 14'0"
Max dig depth (E-stick extended) (SAE maximum, extendible stick extended): 17'7"
15Digging depth, 2440 mm flat bottom: 12'10"
Digging depth, 610 mm flat bottom: 13'11"
16Reach at ground level, from slew centre: 18'4"
Reach at ground level, from slew centre (E-stick extended): 21'9"
Reach from rear axle centreline at ground line: 21'11"
Max load-over height (Loading height, standard stick): 12'2"
17Loading reach: 6'1"
Maximum operating height (backhoe): 18'4"
Bucket tearout force: 14,431 lbf
Dipper tearout force: 9,786 lbf
Swing arc: 180°
Bucket rotation: 205°

Loader performance

Shovel capacity (GP bucket, SAE rated, pin-on): 1.25 yd³
Lift capacity to full height: 7,230 lb
Shovel breakout force: 11,216 lbf
Lift breakout force: 11,280 lbf
Tipping load at breakout point: 14,689 lb
Dump height: 9'1"
7Maximum hinge pin height: 11'5"
8Dump angle at full height: 44°
9Dump reach at maximum angle: 2'8"
10Maximum bucket rollback at ground level: 36°
11Loader digging depth: 0'3"
12Grille to bucket cutting edge, carry position: 4'10"
13Maximum operating height (loader): 14'3"

Weight

Operating weight: 17,271 lb
Operating weight (maximum, ROPS capacity): 24,251 lb
Operating weight (minimum): 16,279 lb

Engine

Engine model: Cat C3.6, electronic turbo, intercooled
Emissions: U.S. EPA Tier 4 Final / EU Stage V
Displacement: 220 in³
Bore: 3.86 in
Stroke: 4.72 in
Gross power: 102 hp
Gross power (ISO 14396) (At 2,200 rpm; 74.5 kW (100 hp) engine rating): 100 hp
Net power: 91 hp
Net peak power: 105 hp
Max torque: 322 lb-ft
Gross power, 110 hp rating: 112 hp
Net power, 110 hp rating: 101 hp
Max torque, 110 hp rating (Net, SAE J1349; 82 kW (110 hp) engine rating): 358 lb-ft

Transmission

Transmission: Power shift 4F/3R (standard); 6F/3R power shift optional, with or without LTC
Top speed: 25 mph

Hydraulics

Hydraulic system: Closed center, load sensing; variable-flow axial piston pump
Pump flow (At 2,200 rpm): 49.4 gal/min
Max pressure: 3,626 psi

Tyres

Front tyres: 340/80-18
Rear tyres: 500/70-24

Service capacities

Fuel tank: 42.3 gal
Engine oil, with filter: 2.4 gal
Cooling system (With air conditioning): 4.8 gal
Diesel exhaust fluid (DEF): 5.0 gal
Hydraulic system, with tank: 25.1 gal
Hydraulic tank: 11.1 gal
Transmission, power shift (AWD): 5.0 gal
Rear axle: 4.2 gal
Front axle (AWD): 2.9 gal
Final drive, front (each): 0.2 US gal
Final drive, rear (each): 0.4 US gal

Service intervals

Engine oil and filter (or 12 months): 500 hours
Transmission oil: 1,000 hours
Axle oil: 1,000 hours
Hydraulic oil (With Cat HYDO Advanced 10): 3,000 hours
Coolant (Cat ELC, or 72 months): 12,000 hours