Hercules 3378 Cylinder

Hercules 3378 Cylinder is a Hercules catalog product available from WQC Parts for hydraulic cylinder, seal kit, pump, motor, valve, and heavy-equipment repair applications.

This listing uses Hercules part number HTC-3378. Catalog description: 3378.

Product Details

• Hercules part number: HTC-3378
• Product type: Replacement cylinder or cylinder repair component
• Reference brand/application: Hercules
• Approximate weight: 108 lb
• Catalog data source: 2026 US Cylinder Catalog

Catalog Application Data

• Catalog section: HTC CLEVIS WELDED CYLINDERS > THE HTC LINE > 3000 PSI SINGLE ACTING CYLINDERS
• Model or series reference: 3378, 78, 35, 0625, 25
• Style / kit type: HTC-3378
• Catalog page reference: 48

Use this product when your parts book, service manual, cylinder repair list, pump/motor breakdown, or existing component calls for HTC-3378. It is intended to help restore sealing performance, reduce leakage, and support reliable equipment repair when correctly matched to the application.

Fitment Verification

Before ordering, confirm the HTC-3378 reference against your OEM reference number, machine model, cylinder location, bore and rod size, pump/motor series, and serial-number range. Manufacturer names and part numbers are used for identification and fitment reference only. If you are unsure, compare the old parts, measurements, and parts-book callout before installation.