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Home / Attachments / John Deere Front End Loaders / John Deere 521

John Deere 521 Front End Loader

The John Deere 521 NSL front end loader is used for John Deere 5205, 5210, 5220, 5320 tractors. The front end loader has double acting bucket and lift hydraulic cylinders.

The front end loader has a lift capacity (at pivot pin) of 2730 lbs (1240 kg) to full height of 122" (3090 mm) and breakout force of 5600 lbs (2545 kg). A full dump clearance with a 32-degree maximum dump angle is 100" (2540 mm).

The John Deere 521 loader is compatible with the following buckets: a 61" (1550 mm) standard material bucket with a rated capacity of 15.6 cu.ft (0.43 cu.m), 73" (1850 mm) standard material bucket with a rated capacity of 18.7 cu.ft (0.52 cu.m), and 85" (2150 mm) standard material bucket with a rated capacity of 21.7 cu.ft (0.62 cu.m).

Compatible Tractors
Tractor models John Deere 5205, 5210, 5220, 5320
Front tires 7.50x16
Rear tires 14.9x28
Pump capacity, gpm (lpm) 11.5 (43.5)
Hydraulic pressure, psi (bar) 2800 (193)

Loader
Loader model JD 521 NSL
Leveling system Non Self Leveling
Lift cylinder bore/stroke, in (mm) 2.5 (63) / 21.3 (540)
Lift cylinder rod diameter, in (mm) 1.6 (40)
Bucket cylinder bore/stroke, in (mm) 2.2 (56) / 22.5 (572)
Bucket cylinder rod diameter, in (mm) 1.26 (32)

61" Standard Material Bucket
Width, in (mm) 61 (1550)
Struck capacity, ft3 (m3) 13.0 (0.36)
Heaped capacity, ft3 (m3) 15.6 (0.43)
Weight, lb (kg) 264 (120)

73" Standard Material Bucket
Width, in (mm) 73 (1850)
Struck capacity, ft3 (m3) 15.6 (0.43)
Heaped capacity, ft3 (m3) 18.7 (0.52)
Weight, lb (kg) 330 (150)

85" Standard Material Bucket
Width, in (mm) 85 (2150)
Struck capacity, ft3 (m3) 17.1 (0.50)
Heaped capacity, ft3 (m3) 21.7 (0.62)
Weight, lb (kg) 440 (200)


Loader Dimensions
Maximum lift height at bucket pivot pin (JD 5210, 5220, 5320), in (mm) 122 (3090)
Maximum lift height at bucket pivot pin (JD 5205), in (mm) 114.2 (2895)
Maximum lift height under level bucket (JD 5210, 5220, 5320), in (mm) 114 (2890)
Maximum lift height under level bucket (JD 5205), in (mm) 106 (2705)
Clearance with bucket dumped (JD 5210, 5220, 5320), in (mm) 100 (2540)
Clearance with bucket dumped (JD 5205), in (mm) 89 (2280)
Reach at maximum lift height (JD 5210, 5220, 5320), in (mm) 20 (508)
Reach at maximum lift height (JD 5205), in (mm) 29 (745)
Reach with bucket on ground level (JD 5210, 5220, 5320), in (mm) 66 (1685)
Reach with bucket on ground level (JD 5205), in (mm) 69 (1750)
Maximum dump angle (JD 5210, 5220, 5320), degrees 32
Maximum dump angle (JD 5205), degrees 42
Maximum rollback angle (JD 5210, 5220, 5320), degrees 24
Maximum rollback angle (JD 5205), degrees 23
Digging Depth (JD 5210, 5220, 5320), in (mm) 5.4 (137)
Digging Depth (JD 5205), in (mm) 3.5 (90)

Operating Data
Lift Capacity to maximum height at pivot pin (JD 5210, 5220, 5320), lbs (kg) 2730 (1240)
Lift Capacity to maximum height at pivot pin (JD 5205), lbs (kg) 2115 (960)
Lift Capacity to max. height at 31.5" (0.8m) forward of pin (JD 5210, 5220, 5320), lbs (kg) 1740 (790)
Lift Capacity to max. height at 31.5" (0.8m) forward of pin (JD 5205), lbs (kg) 1610 (730)
Lift Capacity to 59" (1.5m) height at pivot pin (JD 5210, 5220, 5320), lbs (kg) 3717 (1685)
Lift Capacity to 59" (1.5m) height at pivot pin (JD 5205), lbs (kg) 3215 (1458)
Lift Capacity to 59" (1.5m) height at 31.5" (0.8m) forward of pin (JD 5210, 5220, 5320), lbs (kg) 2660 (1207)
Lift Capacity to 59" (1.5m) height at 31.5" (0.8m) forward of pin (JD 5205), lbs (kg) 2490 (1130)
Breakout force at pivot pin with bucket on ground (JD 5210, 5220, 5320), lbs (kg) 5600 (2545)
Breakout force at pivot pin with bucket on ground (JD 5205), lbs (kg) 4495 (2045)
Breakout force at 31.5" (0.8m) forward of pin (JD 5210, 5220, 5320), lbs (kg) 3732 (1696)
Breakout force at 31.5" (0.8m) forward of pin (JD 5205), lbs (kg) 3305 (1502)
Bucket rollback force at maximum height (JD 5210, 5220, 5320), lbs (kg) 3530 (1604)
Bucket rollback force at maximum height (JD 5205), lbs (kg) 3445 (1565)
Bucket rollback force at ground level (JD 5210, 5220, 5320), lbs (kg) 3800 (1727)
Bucket rollback force at ground level (JD 5205), lbs (kg) 3597 (1635)

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Front End Loaders Specifications
JOHN DEERE 220R JOHN DEERE 300CX JOHN DEERE 400E JOHN DEERE 440R
KUBOTA LA272 KUBOTA LA434 KUBOTA LA724 KUBOTA LA844
FORD 768 FORD 770A FORD 772 FORD 776B
MF 236 MF 946 MF 1530 MF DL250
NH 12LA NH 210TL NH 655TL NH 7106
CASE IH L130 CASE IH L160 CASE IH L350 CASE IH L760