One New Replacement Boom Hydraulic Cylinder Seal Kit
Fits John Deere Excavators


Models: 690, 690A
Application: Boom
Cylinder#: RE21394
Serial#: All

Models: 690B
Application: Boom
Cylinder#: RE12257
Serial#: 501307-
Cylinder#: RE21394
Serial#: All

Models: 690C, 690CR
Application: Boom
Cylinder#: RE18949
Serial#: -509184
Cylinder#: RE21394
Serial#: 509185-

Models: 740, 740A
Application: Lift
Cylinder#: -
Serial#: 708052-, Misc: 740A

Models: 693B
Application: Boom
Cylinder#: RE21394
Serial#: 501445-

Models: 693C
Application: Boom
Cylinder#: -
Serial#: -509184, 509185-

Models: 743,743A Tree Harvesters
Application: Dozer Lift
Cylinder#: -
Serial#: Field Replacement

Bore: 5"".

Replaces Part Number: RE15905