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12212209 is an aftermarket rod-side service kit associated with the Liebherr R920 stick cylinder. When preparing an arm-cylinder repair, identify the rod-end components separately from the piston seals so the order matches the work required. Check the original kit number, cylinder identification and machine serial number before purchase. Ruijueparts provides part-number lookup support for maintenance buyers; if an older or modified cylinder has uncertain references, send its details for a suitability review.
Part Number: 12212209
Compatible Brand: Liebherr
Type: Stick Rod Seal Kit
Manufacturer Type: Aftermarket replacement
Condition: New
Reference Models: R920 — selected cylinder configurations only
Crawler excavator: R920; stick/arm cylinder 11692547.
Function: Services the rod-end sealing area while the cylinder extends and retracts the stick during digging.
Fitment check: Verify the installed cylinder number and machine serial number against the applicable parts list. The examples above are not a universal model fitment claim.
Arm and stick are commonly used for the same excavator linkage, but the terms do not identify a specific cylinder version. Match the part and cylinder numbers.
No. The referenced assembly lists a separate piston-side kit. These kits cover different service areas and are not alternatives to one another.
Have the installed seal grooves and component dimensions checked first. Modifications can change the required profiles even when the machine model stays the same.
Send photographs, available part markings and measured dimensions. Ruijueparts can review the information and assess whether a standard reference or custom solution is appropriate.
Aftermarket replacement supplied by Ruijueparts. Brand names and part references identify compatibility; this is not a genuine Liebherr product.
Our aftermarket seal kits deliver a practical, cost-effective solution without compromising on real-world performance. We offer a lower upfront cost and reliable sealing for your daily maintenance and repair needs.
We stock seal kits across CAT, Komatsu, Volvo, JCB, Hitachi, Doosan, John Deere, Kubota, and 10+ other brands—one supplier for your whole fleet.
Ship under RuijueParts branding, neutral (unbranded) packaging, or your own private label. Suitable for resellers and distributors.
When genuine OEM seals are out of production for your old machinery, we can custom-make oil seals using your dimensions or our engineer-recommended specifications.
Ship under RuijueParts branding, neutral (unbranded) packaging, or your own private label. Suitable for resellers and distributors.
Volume pricing for repair shops, dealers, and fleet operators. Get a quote via our website or WhatsApp: +86 13692100161.
OEM seal kits are the right choice when machinery is under active warranty, operating at peak duty cycles, or when failure risk is unacceptably high. Budget aftermarket—like Ruijue Parts—makes sense in these common scenarios:
When a machine is aging out of your fleet, OEM parts cost more than the job warrants. A budget kit extends service life without over-investing.
For machines used infrequently or on lower-intensity tasks, premium OEM pricing may not be justified.
When OEM stock is out or delivery takes weeks, an available aftermarket kit gets your machine running now.
Repair shops and fleet managers running high volumes of machines often balance OEM and aftermarket across their portfolio based on criticality.
Fully retract the cylinder and relieve system pressure before disassembly. Never work on a pressurized circuit.
Remove from the machine. Unthread the gland nut and withdraw the piston rod carefully to avoid surface damage.
Clean the bore, rod, and all metal parts with a lint-free cloth. Contamination introduced during reassembly accelerates seal wear—this step is especially important for budget-grade seals.
Check for scoring or pitting. Budget seals are more sensitive to surface imperfections—address rod damage before fitting new seals.
Lightly coat each seal with clean hydraulic fluid before installation. Use proper seal drivers — not screwdrivers or sharp tools — to avoid nicking the sealing lip.
Torque the gland nut to spec and cycle the hydraulic system under no-load conditions. Inspect for leaks before returning the machine to service.
Budget-grade seals may have shorter service intervals than OEM. Inspect rod seals for moisture, oil film, or weeping more frequently and replace proactively.
Contaminated fluid degrades seals faster — this applies especially to non-OEM materials. Replace fluid and filters on schedule.
When storing equipment with cylinders extended, protect rod surfaces from corrosion and debris to preserve wiper seal life.
Avoid using sharp tools during assembly to prevent nicks or scores on the seal lips. Pre-lubricating all components with clean hydraulic oil is recommended to ensure a smooth fit into the cylinder grooves.
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