Datsun 520 Truck was produced from 1965 to 1968. The minor model change came in late 1968 with the updated 521. The 521 and L521 continued to use the J13 engine until the Premium-engined 521 was introduced for North America (PL521).
520 J13 engine 521 J13 engine PL521 L16 engine
520 Truck L520 Truck for LHD (left-hand-drive) L520U Truck, LHD for USA G520 Long wheelbase (long body) Truck U520 Double-cab Pickup (2-dr with back seat, 1-piece body/bed) V520 2-dr Van (wagon)
521 G521 Long Body Truck (long wheelbase) PL521 L16 engine U521 Double-cab pickup 2-dr V521 Van 2-dr
Wheelbase
521 has 45 mm longer wheelbase than equivalent 520 version.
Wheelbase mm 520 4245 G520 4635 U520 4300 V520 4300
521 4290 G521 4680 U521 4345 V521 4345
Weight
521 975 kg G521 1010 U521 1050 V521 1070
Load Capacity
521 3 passenger + 1000 kg G521 3 passenger + 1000 kg U521 6 passenger + 400 kg V521 3 passenger + 500 kg 5 passenger + 300 kg