The Case 621D is a wheel loader designed for material handling, loading, stockpiling, and general construction site work. As part of Case's 621 series, the 621D is typically associated with a mid-size loader configuration used in aggregate, municipal, agricultural, and industrial applications. It features a front-mounted loader arm and bucket arrangement, articulated steering, and a diesel powertrain suited to repetitive loading cycles. The model is commonly referenced for its balance of maneuverability, lift capacity, and operator visibility. Exact specifications, including engine output, operating weight, and bucket capacity, vary by configuration and production year.
Bucket
Case 621D Wheel Loader Bucket specifications
Breakout Force
23,237.00 lbs (10,540.14 kg)
Bucket Capacity - Heaped
3 cu yd
Bucket Capacity - Struck
2.57 cu yd
Bucket Width
8.54 ft (2.60 m)
Dump Clearance At Max Raise
9.21 ft (2.81 m)
Dimensions
Case 621D Wheel Loader Dimensions specifications
Ground Clearance
1.56 ft (0.48 m)
Height
10.83 ft (3.30 m)
Height To Top Of Cab
10.85 ft (3.31 m)
Hinge Pin - Max Height
12.59 ft (3.84 m)
Length
23.08 ft (7.04 m)
Length With Bucket On Ground
23.09 ft (7.04 m)
Reach At Max Lift And Dump
3.33 ft (1.01 m)
Weight
26,083.00 lbs (11,831.06 kg)
Wheelbase
9.52 ft (2.90 m)
Width
7.83 ft (2.39 m)
Width Over Tires
7.82 ft (2.38 m)
Engine
Case 621D Wheel Loader Engine specifications
Aspiration
turbocharged and air to air cooled
Displacement
409.00 cu in (6,702.32 cu cm)
Engine Make
2239
Engine Model
Family III 668TA/M2
Gross Power
148.00 hp (110.37 kw)
Max Torque
495.00 lbs ft (671.12 nm)
Net Power
136.00 hp (101.42 kw)
Number Of Cylinders
6
Power Measured @
2000 rpm
Torque Measured @
1200 rpm
Torque Rise
33 %
Hydraulic System
Case 621D Wheel Loader Hydraulic System specifications
Dump Time
1.5 sec
Lower Time
5 sec
Pump Flow Capacity
45.20 gpm (171.08 lpm)
Pump Type
closed centered pressure/flow compensated
Raise Time
5.4 sec
Relief Valve Setting
3600 psi
Operational
Case 621D Wheel Loader Operational specifications
Alternator Supplied Amperage
70 amps
Cooling System Fluid Capacity
6.40 gal (24.22 l)
Engine Oil Fluid Capacity
4.30 gal (16.28 l)
Front Axle/Diff Fluid Capacity
5.90 gal (22.33 l)
Fuel Capacity
50.00 gal (189.25 l)
Hydraulic System Fluid Capacity
30.10 gal (113.93 l)
Operating Voltage
24 V
Operating Weight
26,083.00 lbs (11,831.06 kg)
Rear Axle Oscillation
24 degrees
Rear Axle/Diff Fluid Capacity
5.90 gal (22.33 l)
Static Tipping Weight
22,434.30 lbs (10,176.04 kg)
Tire Size
20.5x25 L3
Transmission Fluid Capacity
5.00 gal (18.93 l)
Turning Radius
17.00 ft (5.18 m)
Transmission
Case 621D Wheel Loader Transmission specifications
Max Speed - Forward
24.00 mph (38.62 kph)
Max Speed - Reverse
15.60 mph (25.11 kph)
Number Of Forward Gears
4
Number Of Reverse Gears
3
Transmission Type
4F/3R proportional w/ electronic control module torque sensing autoshift/manual shift and modulation
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