118-4131 Boom Bucket Stick Cylinder Seal Kit for Caterpillar 315B L 318B 318BL 320 320B 320BL 320S 322 322B 322BL 325B 325BL 330B 330BL 345B 345BL M320 Excavators

Restore dependable hydraulic sealing performance with the WINSCHEN 118-4131 Boom and Bucket and Stick Cylinder Seal Kit. This premium aftermarket replacement is supplied for verified Caterpillar repair applications.

Key Features

Direct Replacement: Referenced to Caterpillar part number 118-4131 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 boom bucket stick cylinder service, helping restore dependable operation and reduce equipment downtime.

Compatible Equipment Models

Excavators: 315B L 318B 318BL 320 320B 320BL 320S 322 322B 322BL 325B 325BL 330B 330BL 345B 345BL

Excavators – Wheel: M320

Specifications

Part Number	118-4131 (1184131)
Part Type	Seal Kit
Equipment Brand	Caterpillar
Application	STICK BUCKET BOOM
Brand	WINSCHEN
Country of Origin	China
SKU	CTC-118-4131
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.

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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.