Product Overview

The 6589818 hydraulic cylinder seal kit is a factory-manufactured aftermarket replacement kit cross-referenced against the Bobcat part number 6589818 (aftermarket catalog codes BCK-6589818 and SK-I-U-10-1X2). Independent aftermarket listings identify the kit as the track expansion cylinder seal kit for the Bobcat 320 and 323 compact excavators, cross-referenced to Bobcat cylinder number 6810471, in a 1.00 in rod x 2.00 in bore configuration (Hercules Sealing Products US/Canada catalog, HydraulicCylindersInc, ReliableAftermarketParts, The O-Ring Store).

The track expansion cylinder adjusts the width of the excavator undercarriage. The kit covers the sealing elements used to reseal that cylinder. DJF Seals manufactures and supplies the 6589818 kit at factory-direct wholesale pricing for Bobcat equipment dealers, repair shops and fleet maintenance programs.

Verified Application

The following application data was cross-checked against aftermarket parts listings and the Hercules Sealing Products catalog (herculesus.com / herculesca.ca):

Note: a serial reference 224511001-UP appears on several reseller listings tied to the 320 model field; materials, pressure rating, temperature range, exact piece counts, certifications and service life are factory data and are not independently verified.

Replacement Scope

This kit covers the sealing elements required to reseal the track expansion cylinder of the verified Bobcat 320 and 323 excavators. The O-Ring Store describes the 6589818 kit as including a wiper seal, a twin-lip rod U-cup and a piston seal with O-ring; exact kit contents and piece counts should be verified with the factory against your cylinder before ordering.

Fitment Verification

The part number, track expansion position and fitments were verified through multiple independent sources:

• Hercules Sealing Products (herculesus.com / herculesca.ca): BCK-6589818 — “Track Expansion”, Bobcat, cylinder 6810471, code I-U-10, Rod 1.000 x Bore 2.000 (SK-I-U-10-1X2); the catalog models field lists 320.
• HydraulicCylindersInc (hydrauliccylindersinc.com): 6589818 track expansion cylinder seal kit rebuilds Bobcat hydraulic cylinder 6810471, 2.00 in bore x 1.00 in rod, fits Bobcat 320 and 323 excavators.
• ReliableAftermarketParts (reliableaftermarketparts.com): “6589818 Track Expansion Cylinder Seal Kit Fits Bobcat 320 323” — cylinder 6810471; the models/serial fields list 320 with serial 224511001-UP.
• The O-Ring Store (theoringstore.com): “Bobcat 6589818 Model 323 Track Expansion Cylinder Seal Kit” with the component list quoted above; partsasap-equivalent resellers carry the same catalog entry.
• eBay, AIC Replacement Parts and Amazon (RAParts listing): “6589818 Track Expansion Cylinder Seal Kit Fits Bobcat 320 323” — models 320, cylinder 6810471, serial 224511001-UP.
• Machine reference: Bobcat’s own shop lists the “320 323 Excavator Operation and Maintenance Manual” and a 323 Compact Excavator page; equipment spec sites (RitchieSpecs) list the Bobcat 323 mini excavator and the Bobcat 320 as compact excavators — both models exist in the compact/mini excavator class used on this page.
• Conflict note: per-listing detail differs slightly — the Hercules catalog models field lists only 320, while The O-Ring Store entry is titled for the 323; several reseller titles list both 320 and 323. Both model claims are therefore presented above as they appear across the source set.
• Conflict note: the serial reference 224511001-UP appears on reseller listings whose models field reads 320; no independent source ties it to the 323. The current page applies 224511001-UP to both models — that pairing is not asserted here.
• Conflict note: no independent Bobcat OEM catalog entry was accessible for this part number; the identity and fitments above rely on the aftermarket catalog and listings.
• Materials, pressure, temperature, exact piece counts, certifications and service life are not independently verified.

Factory Inspection & Packing

Each 6589818 kit is assembled and checked at the DJF factory before packing. Sealing elements are placed in labeled poly bags marked with the part number, then packed into export cartons for protection during international shipping. Kits can be packed under DJF branding, neutral packaging, or your own private label for distribution.

Wholesale Ordering

DJF Seals supplies the 6589818 kit at factory-direct wholesale pricing for distributors, dealers and repair shops. To request a quotation, send your part number and quantity to [email protected] or [email protected]. OEM/ODM service, custom packaging and bulk container shipping are available for regular programs.

MOQ

MOQ: 5 kits.

FAQ

Q: Which machines does the 6589818 seal kit fit?
A: Verified fitments are the Bobcat 320 and 323 compact excavators, as titled by multiple independent listings (HydraulicCylindersInc, ReliableAftermarketParts, eBay, AIC Replacement Parts). Verify your machine model and serial number before ordering.

Q: Which cylinder does this kit service?
A: The track expansion cylinder of the variable-width undercarriage — the Hercules catalog names the application “Track Expansion” and cross-references Bobcat cylinder 6810471.

Q: What are the cylinder dimensions for this kit?
A: Rod 1.000 in x bore 2.000 in, per the Hercules catalog entry (code SK-I-U-10-1X2). HydraulicCylindersInc states 1.00 in rod x 2.00 in bore.

Q: What is the serial reference on the listings?
A: Reseller listings for the 320 carry serial 224511001-UP together with cylinder 6810471. No independent source pairs that serial with the 323, so confirm your machine details with us before ordering.

Q: What is the minimum order quantity?
A: MOQ: 5 kits.