585-2858 Swivel Joint Seal Kit for Caterpillar 303 304 305 306 Mini Excavators

585-2858 Swivel Joint Seal Kit for Caterpillar

Repair hydraulic leaks and restore proper sealing performance in the swivel joint assembly with the WINSCHEN 585-2858 Seal Kit. This aftermarket replacement kit is built for Caterpillar compact excavator hydraulic service work and includes the key O-rings, backup ring, dust seal, and swivel seals required for a complete service.

Key Features

Direct Replacement: Manufactured to fit Caterpillar part number 585-2858 applications and support efficient swivel joint maintenance.
Complete Service Contents: Includes six cataloged component part numbers with quantities matched to the official kit listing.
Reliable Aftermarket Solution: Designed for hydraulic oil resistance, sealing stability, and routine repair of compact excavator swivel joint assemblies.

Compatible Equipment Models

Mini Excavators: 303, 303.5, 303.5C, 303.5D, 303.5E, 303C, 303E, 304, 304.5, 304C, 304D, 304E, 304E2, 305, 305.5, 305C, 305D, 305E, 305E2, 305.5D, 305.5E, 305.5E2, 306, 306E, 306E2, 307E, mm55SR, 307 OEM Caterpillar

Seal Kit Related Parts

Part No	Qty	Parts name
146-4875	1	80 mm ID Swivel Backup Ring
146-4877	1	105 mm OD Swivel Dust Seal
274-3351	7	Travel Motor Swivel Seal
095-1713	1	94.40 mm ID O-Ring
095-1623	1	79.60 mm ID O-Ring
8T-5376	1	79.4 mm ID O-Ring

Specifications

Part Number	585-2858 (5852858)
Part Type	Swivel Joint Seal Kit / Hydraulic Cylinder Seal Kit / Service Kit
Application	Swivel Joint Hydraulic Seal Repair
Brand	WINSCHEN
Country of Origin	China
SKU	CTC-585-2858
MOQ	1 SET
Delivery Time	1-3 business days

To ensure proper fitment, please verify your machine model and original swivel joint configuration before ordering. We offer fast global shipping and can help confirm compatibility from the OEM part number or machine model information.

Related Caterpillar Seal Kit Categories

Browse more Caterpillar replacement parts or compare other hydraulic cylinder seal kits. For fitment confirmation, send the OEM part number, machine model through our inquiry form or WhatsApp.