High-quality BOOM cylinder seal kit for ZX 490LCH-6/490 excavators. Designed to restore hydraulic sealing performance and eliminate oil leakage during cylinder repair or overhaul.

Manufactured from premium rubber and polyurethane materials, offering excellent pressure resistance, oil resistance, and long service life under heavy-duty working conditions.

Precision sizing ensures accurate fit and reliable sealing performance.

Application: BOOM Cylinder

Compatible Models: ZX 490LCH-6/490

Includes: Complete seal set for one cylinder (rod seal, piston seal, dust seal, O-rings, back-up rings, etc.)