Hydraulic Cylinder Seal Kits

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  • 31Y1-15885 Boom Cylinder Seal Kit for Hyundai R200W-7

  • Hyundai 31Y1-15885 Hydraulic Boom Cylinder Seal Kit 85x120mm

  • Hyundai R200W-7 R210LC-7 Boom Seal Kit 31Y1-15885

31Y1-15885 Boom Cylinder Seal Kit 85mm Rod 120mm Bore for Hyundai R200W-7 R210LC-7 R210NLC-7

Part Number: 31Y1-15885
Product Name: Boom Cylinder Seal Kit
Cylinder Position: Boom LH & RH
MOQ: 1 Piece
Warranty: 6 Months
Rod Diameter: 85 mm
Cylinder Bore: 120 mm
Application: Hyundai R200W-7, R200W-7A, R210LC-7, R210LC-7A, R210NLC-7, R210NLC-7A
Applicable Serial: R200W-7 #0615-; R210LC-7 #3966-; R210NLC-7 #0269-

Product Description

31Y1-15885 Boom Cylinder Seal Kit

31Y1-15885 is a boom hydraulic cylinder seal kit for selected Hyundai excavators. The applicable cylinder configuration uses an 85 mm rod and 120 mm bore and serves both left-hand and right-hand boom cylinders.

Fitment is production-range dependent, so the machine serial number should be checked together with the original seal kit number before ordering.

Hyundai Model and Serial Number Fitment

For R200W-7, 31Y1-15885 applies from serial number #0615. For R210LC-7 it applies from #3966, and for R210NLC-7 from #0269. The corresponding R200W-7A, R210LC-7A and R210NLC-7A configurations also use this boom seal kit.

Earlier R200W-7 and R210NLC-7 machines use 31Y1-18061 instead. That earlier kit is a serial-range alternative, not a cross reference for 31Y1-15885.

Cylinder Rebuild Checks

Inspect the 85 mm piston rod, 120 mm cylinder bore, gland, piston and seal grooves for scoring, corrosion or abnormal wear before fitting the new seals.

Clean all components thoroughly and install each seal in the correct direction. Damaged cylinder surfaces or hydraulic contamination should be corrected before the rebuilt cylinder returns to service.

Topvelsun Supply Support

Topvelsun supplies excavator hydraulic cylinder seal kits with 1-piece MOQ and a 6-month warranty. Send the part number, machine model and serial number for fitment confirmation before ordering.


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