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  • 330‑6820 Caterpillar buffer seal aftermarket replacement

    330‑6820 Caterpillar Buffer Seal aftermarket in stock

    330‑6820 Caterpillar Buffer Seal aftermarket in stock

    Product Overview This 330‑6820 buffer seal is a hydraulic buffer seal designed to absorb shock and protect sealing systems in Caterpillar heavy equipment. It fits Caterpillar machines requiring this OEM code and supports reliable performance in demanding applications. Product Details: Part Name:  330-6820 buffer seal Machine Models: 992  Brand: Caterpillar...
    Regular price $21.98
    Regular price Sale price $21.98
    Unit price /  per 
  • 7J‑3864 and 9J‑1186 buffer seal aftermarket replacements for Caterpillar equipment

    7J‑3864 & 9J‑1186 Buffer Seal Replacement for Caterpillar Equipment

    7J‑3864 & 9J‑1186 Buffer Seal Replacement for Caterpillar Equipment

    Part Name: 7J-3864 9J-1186 Seal KitMachine Models: 994, 69D, 773, 769D, 769C, 771D, 771CBrand: Caterpillar replacementType: Buffer Seal / Seal RingApplication: Installed in hydraulic or mechanical assemblies to protect contact surfaces, absorb shock, cushion movement, and prevent dust, dirt, or debris from entering the seal area.Size: Standard SizeSupply Ability: 10,000...
    Regular price $9.80
    Regular price Sale price $9.80
    Unit price /  per 
  • 186-4327 Aftermarket Hydraulic Cylinder Seal Kit for Caterpillar 416C Backhoe Bucket

    186-4327 1864327 Hydraulic Cylinder Seal Kit for Caterpillar Backhoes | Ruijueparts

    186-4327 1864327 Hydraulic Cylinder Seal Kit for Caterpillar Backhoes | Ruijueparts

    Product Description Premium aftermarket 186-4327 hydraulic cylinder seal kit designed for Caterpillar backhoe loaders. This high-quality repair kit includes all necessary seals (wiper, U-seal, buffer, and piston seals) to fix leaks and restore hydraulic pressure in bucket cylinders for models like 416C, 428C, and 438C. A reliable, cost-effective solution for...
    Regular price $21.43
    Regular price Sale price $21.43
    Unit price /  per 
  • 707-99-66670 Arm Cylinder Seal Kit for Komatsu PC400-7 PC450-7 Heavy Excavator Repair.

    707-99-66670 Arm Cylinder Seal Kit for Komatsu PC400-7 PC450-7 | Ruijueparts

    707-99-66670 Arm Cylinder Seal Kit for Komatsu PC400-7 PC450-7 | Ruijueparts

    Product Description Enhance the reliability of your heavy-duty excavator with the 707-99-66670 Arm Cylinder Seal Kit. Specifically engineered for Komatsu PC400-7 and PC450-7 series, this premium aftermarket kit is designed to handle the rigorous demands of high-load excavation. It perfectly fits 185mm bore and 130mm rod cylinders, ensuring a precise...
    Regular price $21.99
    Regular price Sale price $21.99
    Unit price /  per 
  • RD809-72090 hydraulic arm cylinder seal kit for Kubota KX080-3 KX080-4 excavator repair

    RD809-72090 Arm Cylinder Seal Kit for Kubota KX080-3 KX080-4 | Ruijueparts

    RD809-72090 Arm Cylinder Seal Kit for Kubota KX080-3 KX080-4 | Ruijueparts

    Product Description High-quality RD809-72090 arm cylinder seal kit designed for Kubota KX080-3 and KX080-4 excavators. This aftermarket kit includes premium oil seals, wipers, and O-rings with 60mm rod and 100mm bore specifications. Perfect for preventing hydraulic leaks and ensuring smooth arm operation in heavy-duty environments. Item specifics Part Number: RD809-72090...
    Regular price $21.08
    Regular price Sale price $21.08
    Unit price /  per 
  • A complete aftermarket Komatsu seal kit for hydraulic cylinder repair from Ruijue Parts.
    April 15, 2026

    Komatsu Seal Kits: The Ultimate OEM vs. Aftermarket Parts Guide for Heavy Machinery

    Blog
    April 15, 2026

    Komatsu Seal Kits: The Ultimate OEM vs. Aftermarket Parts Guide for Heavy Machinery

    Blog
  • How to Identify Excavator Seal Kit Part Numbers: A Professional Guide for CAT 416B & 426B Owners
    April 1, 2026

    How to Identify Excavator Seal Kit Part Numbers: A Professional Guide for CAT 416B & 426B Owners

    Blog
    April 1, 2026

    How to Identify Excavator Seal Kit Part Numbers: A Professional Guide for CAT 416B & 426B Owners

    Blog

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