518-5133 Hydraulic Bucket Cylinder Seal Kit for Caterpillar 330F L 336 330F LN

518-5133 Hydraulic Bucket Cylinder Seal Kit – Premium Aftermarket Solution for Caterpillar Excavators

Maintain peak digging force and prevent hydraulic pressure loss with this professional-grade 518-5133 bucket cylinder seal kit. Specifically designed for Caterpillar’s high-performance 330F and 336 series excavators, this kit provides a superior sealing solution for demanding earthmoving and construction environments. Bucket cylinders endure constant impact and high-frequency cycling; manufactured by WINSCHEN utilizing premium elastomeric materials, these seals are engineered to meet or exceed OEM standards for durability and long-term reliability.

Key Features

Optimized Breakout Force: Precision-engineered seals prevent internal fluid bypass, ensuring your excavator’s bucket maintains consistent curling force and eliminates cylinder drift during heavy loading.
Direct OEM Compatibility: Guaranteed to match Caterpillar factory specifications for the 518-5133 cylinder group across 330F L, 330F LN, and 336 models, facilitating a seamless and leak-free installation.
Superior Wear Resistance: Highly resistant to abrasive rock dust, hydraulic pressure spikes, and elevated operating temperatures common in heavy-duty excavating.
Comprehensive Seal Solution: A complete kit featuring all essential components (including 324-6439, 7Y-4669, and 495-8212 components) required for a thorough and long-lasting bucket cylinder rebuild.
Minimize Equipment Downtime: A dependable, cost-effective aftermarket alternative from WINSCHEN that returns your Caterpillar machinery to peak operational capacity quickly.

Compatible Equipment Models

Excavators: 330F L, 330F LN, 336, 336F, 336GC Application : Bucket Cylinder Service Caterpillar

Seal Kit Related Parts

Part No	Qty	Parts name
495-8212	1	SEAL AS
165-9290	1	SEAL-LIP TYPE
188-4217	2	RING
188-4218	1	RING
242-6833	1	RING-SEAL
095-1633	1	SEAL-O-RING
324-6438	1	SEAL-BUFFER
324-6439	1	SEAL-U-CUP

Specifications

Part Number	518-5133 (5185133)
Part Type	Hydraulic Bucket Cylinder Seal Kit / Service Kit
Application	Hydraulic Cylinder Rebuild
Brand	WINSCHEN
Country of Origin	China
SKU	CTC-518-5133
MOQ	1 SET
Delivery Time	1-3 business days

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