393-7887 Hydraulic Cylinder Seal Kit for Caterpillar 312D 312E 314E

393-7887 Hydraulic Cylinder Seal Kit – Premium Aftermarket Solution for Caterpillar Excavators

Restore peak hydraulic performance and entirely eliminate fluid leaks with this professional-grade 393-7887 hydraulic cylinder seal kit. Specifically engineered for Caterpillar’s highly versatile 12 to 14-ton class excavators, including the popular 312D, 312E, 313D2, and 314E series (covering standard, LGP, and CR/LCR compact radius models). Hydraulic cylinders on these nimble earthmovers endure continuous high-frequency cycles in tight urban work spaces; manufactured by WINSCHEN utilizing premium elastomeric and polyurethane materials, these seals are built to withstand severe construction site conditions.

Key Features

Optimized Hydraulic Performance: Precision-engineered U-cups, buffer seals, and O-rings prevent internal fluid bypass, ensuring your Cat excavator maintains consistent breakout and lifting force without cylinder drift.
Direct OEM Compatibility: Guaranteed to seamlessly match Caterpillar factory specifications for the 393-7887 cylinder group across D, D2, and E series models, facilitating a precise and straightforward installation.
Heavy-Duty Durability: Highly resistant to severe hydraulic pressure spikes, elevated operating temperatures, and environmental contaminants such as abrasive dirt, rock dust, and moisture.
Comprehensive Overhaul Kit: Includes all essential service parts required for a complete, reliable, and leak-free hydraulic cylinder rebuild.
Minimize Equipment Downtime: A dependable, cost-effective aftermarket alternative from WINSCHEN that reduces maintenance overhead while keeping your compact earthmoving machinery producing.

Compatible Equipment Models

Excavators: 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313D2, 313D2 LGP, 314D CR, 314D LCR, 314E CR, 314E LCR Application : Hydraulic Cylinder Service Caterpillar

Seal Kit Related Parts

Part No	Qty	Parts name
416-1306	1	SEAL-WIPER
416-1285	1	SEAL-U-CUP
416-1287	1	SEAL-BUFFER
416-1288	1	SEAL-O-RING
416-1311	1	SEAL-O-RING
422-9123	1	SEAL-O-RING

Specifications

Part Number	393-7887 (3937887)
Part Type	Hydraulic Cylinder Seal Kit / Service Kit
Application	Hydraulic Cylinder Rebuild
Brand	WINSCHEN
Country of Origin	China
SKU	CTC-393-7887
MOQ	1 SET
Delivery Time	1-3 business days

Need to confirm compatibility for your specific Cat machine. We offer rapid global shipping to minimize your machine’s downtime.

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