346-0643 Coupler Cylinder Seal Kit for Caterpillar 320 GC 320E 320E L 320E LN 320E LRR 321D LCR 323 324E 324E L 324E LN 326F L 329D L 329E 329E L 329F L 330F L 3… Excavators

Restore dependable hydraulic sealing performance with the WINSCHEN 346-0643 Coupler Cylinder Seal Kit. This premium aftermarket replacement is supplied for verified Caterpillar repair applications.

Key Features

Direct Replacement: Referenced to Caterpillar part number 346-0643 for compatible hydraulic service applications.
Reliable Sealing: Selected aftermarket sealing components help maintain fluid retention during normal hydraulic cylinder service.
Maintenance Value: A practical repair solution for coupler cylinder service, helping restore dependable operation and reduce equipment downtime.

Compatible Equipment Models

Excavators: 320 GC 320E 320E L 320E LN 320E LRR 321D LCR 323 324E 324E L 324E LN 326F L 329D L 329E 329E L 329F L 330F L 335F LCR 336D 336D L 336E L 336E LH 336F L

Specifications

Part Number	346-0643 (3460643)
Product Type	Seal Kit
Equipment Brand	Caterpillar
Application	COUPLER QUICK COUPLER
Brand	WINSCHEN
Country of Origin	China
SKU	CTC-346-0643
MOQ	1 SET
Delivery Time	1-3 business days

Need to verify fitment for your specific Caterpillar model? Contact our technical support team for expert assistance. We offer fast global shipping to keep your equipment operational.

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 and machine model through our inquiry form or WhatsApp.