Custom Hoists 1Bu3-7 Seal Kit

Custom Hoists 1Bu3-7 Seal Kit 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 CH-1BU3-7. Catalog description: 7X7-1/2X1-1/2 Bronze Top Bearing.

Product Details

• Hercules part number: CH-1BU3-7
• Product type: Hydraulic cylinder seal kit
• Reference brand/application: Char-Lynn
• Approximate weight: 3 lb

Use this product when your parts book, service manual, cylinder repair list, pump/motor breakdown, or existing component calls for CH-1BU3-7. 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 CH-1BU3-7 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.