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6589868 is an aftermarket swing cylinder seal kit referenced for Bobcat 320 and X-320 compact excavators. It is used to rebuild hydraulic swing cylinder 6587963, helping restore sealing performance where leakage or pressure loss affects controlled swing movement. The reference applies to the listed cylinder from serial number 511720001-up and is associated in replacement catalogues with later reference 6803332. This is a hydraulic cylinder repair kit, not a swing motor seal kit. For distributors and repair shops, ordering by the original part-number reference helps prevent confusion with the boom, arm, bucket, and blade cylinder kits used on the same excavator. Ruijueparts supports direct part-number quotations, multi-SKU RFQs, and neutral or customer-specified packaging.
| Part Number: | 6589868 |
| Fits Models: | 320 |
| Brand: | BOBCAT replacement |
| Type: |
Hydraulic Cylinder Seal Kit / Swing Cylinder Seal Kit |
| Application: |
|
| Size: | Standard Size |
Q1: What does Bobcat 6589868 repair?
A: It is used to rebuild hydraulic swing cylinder 6587963 on compatible Bobcat 320 and X-320 compact excavators.
Q2: Is 6589868 a swing motor seal kit?
A: No. It is a hydraulic swing cylinder seal kit. A swing motor is a different hydraulic component and requires a separate repair kit.
Q3: What is the related reference for 6589868?
A: Replacement catalogues associate 6803332 with 6589868. Submit the original reference from your parts list for accurate matching.
Q4: Does this kit fit the boom, arm, or bucket cylinder?
A: No. Those cylinders have different functions and use separate seal-kit references. This item is for the identified swing cylinder application.
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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