Heavy-Duty 11990398 Hydraulic Steering Cylinder Repair Seal Kit for Volvo L180 & L180C Wheel Loader

Heavy-Duty 11990398 / 11005404 Hydraulic Steering Cylinder Repair Seal Kit for Volvo L180 & L180C Wheel Loader | Premium Overhaul Solution

Restore precise articulation control and responsive steering performance to your wheel loader with our premium Hydraulic Steering Cylinder Seal Kit (Part Numbers: 11990398 / VOE11990398 / 11005404).

Manufactured to meet or exceed OEM specifications, this heavy-duty repair solution is specifically engineered for Volvo L180 and L180C wheel loaders (fits 50mm rod / 100mm cylinder bore). Built to withstand intense hydraulic pressure surges, extreme mud, and heavy material-handling workloads, it effectively stops fluid bypass, prevents cylinder drift, and protects against steering responsiveness loss.

Key Features & Benefits

• Demolition & Earthmoving Grade Material Durability

  Formulated with high-modulus Polyurethane (PU), heat-resistant NBR rubber compounds, and wear-resistant PTFE component rings to handle high cyclic hydraulic pressures without lip distortion or extrusion.

• Precision Zero-Leakage Fitment

  Engineered with exact OEM profile tolerances to guarantee a seamless drop-in installation, eliminating internal oil bypass and steering play during heavy quarrying and loading operations.

• Complete Steering Cylinder Overhaul Package

  Includes a fully matched set of dynamic rod seals, piston seals, buffer rings, wiper seals, and heavy-duty O-rings for a comprehensive cylinder rebuild.

• Contaminant Protection & Extended Service Life

  Heavy-duty wiper design actively scrapes off fine rock dust, gravel, and ambient debris, preventing rod scratching and keeping hydraulic fluid clean.

Technical Specifications

• Brand Compatibility: Volvo / Volvo BM

• Compatible Machine Models: Volvo Wheel Loaders L180, L180C, L180D (including CO & HL variants)

• Application Location: Articulated Steering Cylinder (Left or Right Side)

• OEM Reference Part Numbers: 11990398 / VOE11990398 / 11005404 / VME-11990398

• Cylinder Dimension Match: Rod 50 mm / Bore 100 mm

• Product Type: Hydraulic Steering Cylinder Repair Kit / Maintenance Seal Set

• Primary Material Matrix: Premium PU + High-Temp NBR + Reinforced PTFE Rings

Important Maintenance & Fitment Note

💡 Fleet Service Recommendation: Wheel loaders utilize dual articulated steering cylinders (left and right) that endure identical operational friction. Replacing seals on both sides simultaneously is strongly recommended to maintain equal hydraulic balance and prevent unnecessary secondary machine downtime.

Verify Before Ordering: Please cross-check your original machine serial number or cylinder part number against OEM specifications before ordering to ensure 100% exact fitment.