JLG M600 ANSI Parts Manual - Manual (Page 172)

SECTION 5 - CYLINDER
172 E600/E600J/E600JP/M600/M600J/M600JP 3121118
ITEM PART NUMBER QTY DESCRIPTION REV
27 4640509 1 Cartridge, Valve (Counterbalance Nonvented)
27 2900792 1 Seal Kit-4640509 Valve
28 4640932 1 Cartridge, Valve (Counterbalance Vented)
28 7011112 1 Seal Kit-4640932 Valve
100 Ref Seal Kit Options (Includes Items 14, 16-20 & 23-25)
100 2901549 1 Seal Kit E600 & M600
100 2901901 1 Spacer, Tube E600J & M600J & E600JP & M600JP