Available is a 23-piece lot of Komatsu-labelled gear-coupling components, comprising 12 coupling halves, part number 18N2391D1, and 11 coupling hubs, part number 18P8568.

Available is a 23-piece lot of Komatsu-labelled gear-coupling components, comprising 12 coupling halves, part number 18N2391D1, and 11 coupling hubs, part number 18P8568. Offered together as boxed surplus spares, with package-label dates ranging from 2022 to 2024.

The inspected components have clean machined surfaces and remain in cardboard packaging with plastic-bag or paper protection. The coupling-half packages are identified as FS 203.5 EB. A photographed half is also stamped 18N2391D1, and an Ameridrives 203.5 O-ring kit is shown with the coupling-half material.

Included Components

•12 × Komatsu 18N2391D1 — Coupling Half, FS 203.5 EB. The photographed component is a flanged, internally geared sleeve assembly with a splined hub/insert. Komatsu’s catalogue identifies this part as “COUPLING, Half.” Its labelled configuration is consistent with the Ameridrives Amerigear flanged-sleeve coupling family.  

•11 × Komatsu 18P8568 — Coupling Hub. Package labels identify swing-motor service; Komatsu’s current catalogue describes the part as “HUB, Coupling - Transmission.” The photographed hub has external gear teeth and an internally splined bore. 

•Associated seal accessories: A photographed Ameridrives package identifies part number 30661587, “203.5 O-RING KIT,” with an assembly date of August 1, 2024. Seal kits are included where present with the offered parts; the total number of kits has not been verified and is not an additional guaranteed lot quantity.

Total quantity: 23 principal coupling components. This is a spare-parts lot, not 23 complete couplings. Compatibility between the two part numbers has not been established; the lot is not represented as 11 matched coupling sets.

Typical Application

Heavy-duty gear-coupling replacement and repair in mining-equipment drivetrains. The 18P8568 hub has supporting P&H mining-shovel application references, consistent with its swing-motor package description. Exact machine model, serial-number applicability, and compatibility with an existing drive must be confirmed by the purchaser.  

The FS 203.5 EB designation corresponds to an Amerigear flanged-sleeve, single-engagement configuration with exposed bolts. 203.5 is a coupling size designation, not a measured diameter in millimetres. This identifies the labelled product family; it does not establish an interchangeable standard bore or a complete coupling assembly.