John Deere Re21401 Seal Kit

John Deere Re21401 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 JD-RE21401. Catalog description: 3-1/4 Rod Kit.

Product Details

• Hercules part number: JD-RE21401
• Product type: Hydraulic cylinder seal kit
• Reference brand/application: John Deere
• Approximate weight: 0.442 lb
• Catalog data source: 2026 US Mobile Kit Catalog

Catalog Application Data

• Equipment type: Excavators; Excavators - Compact; Skidders
• Model or series reference: 650/1
• Catalog page reference: 769, 770, 779, 839

Use this product when your parts book, service manual, cylinder repair list, pump/motor breakdown, or existing component calls for JD-RE21401. 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 JD-RE21401 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.