11707902 Hydraulic Steering Cylinder Seal Kit — Volvo L330C Wheel Loader (11088529)
The L330C is one of the largest wheel loaders Volvo has built, weighing in at roughly 48.9 tons with a 503 hp engine and a 9.1 cubic yard bucket capacity. Like other large Volvo loaders, it uses an articulated frame — the steering cylinders don’t turn the wheels, they extend and retract in opposition to bend the loader’s front and rear frame sections at the articulation joint, working as a matched pair on every turn.
Worth noting for older units: the L330C went through a naming change partway through production. Machines built before serial number 60188 were badged Volvo BM L330C, while those from 60188 onward carry the Volvo brand name alone, following Volvo’s 1997 phase-out of the Volvo BM name. A separate L330C Logger variant exists from serial 68052 onward. This kit is intended for the standard L330C steering cylinder configuration (P/N 11088529) — if your machine is a Logger variant or falls near these serial breakpoints, it’s worth confirming the cylinder part number stamped on your unit before ordering.
Key Features and Benefits
Built for Articulated-Frame Steering
Matched to the demands of a dual-cylinder articulated steering system, where left and right cylinders work in a continuous push-pull relationship — uneven wear on one side is often an early sign the opposite cylinder isn’t far behind.
Heavy-Duty Material Grade
Manufactured from high-tensile Polyurethane (PU) and NBR compounds, offering resistance to the high hydraulic pressure and thermal fatigue typical of a 48-ton class loader’s steering system.
Restores Steering Precision
Eliminates internal oil bypass so hydraulic flow converts fully into steering force, maintaining sharp, predictable handling on a large, heavy chassis.
Superior Contamination Shielding
Includes a robust wiper seal that scrapes away abrasive rock dust, grit, and moisture, protecting the internal rod and cylinder bore from scoring.
Comprehensive Service Set
Includes all rod seals, piston seals, buffer seals, back-up rings, and O-rings required for a professional-grade cylinder overhaul.
Product Specifications
- Part Number: 11707902
- Compatible Cylinder P/N: 11088529 (Steering Cylinder)
- Compatible Model: Volvo L330C Wheel Loader (incl. Volvo BM L330C pre-S/N 60188)
- Steering Type: Articulated-frame, dual steering cylinder (left/right)
- Component Type: Full Hydraulic Sealing Service / Repair Kit
- Application: Heavy Mining and Large-Scale Material Handling
- Manufacturer: Lionkits
Important Fitment Note
This kit fits either the left or right steering cylinder — confirm which side needs service, or order both if servicing the pair together. Given the L330C’s naming and serial number history (Volvo BM L330C vs. Volvo L330C, plus the L330C Logger variant), please verify the part number stamped on your cylinder or provide your machine’s serial number before ordering.
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