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    Komatsu Crawler Dozer Hydraulic Seal Kit

    Komatsu Crawler Dozer Hydraulic Seal Kit

    $225.29
    $225.29
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    Komatsu Crawler Dozer Hydraulic Seal Kit

    Restore full hydraulic cylinder performance on your Komatsu crawler dozer with this OEM-spec seal kit. Engineered to Komatsu tolerances, this complete rebuild kit includes every seal, O-ring, wiper, and back-up ring required for a single cylinder overhaul — minimizing downtime and getting your machine back to work fast.

    Kit Contents

    • Piston seal(s) — nylon/nitrile or polyurethane construction
    • Rod seal(s) — polyurethane or nitrile (NBR/Buna-N)
    • Wiper/dust seal — prevents contamination ingress
    • O-rings — static and dynamic sealing points throughout
    • Back-up rings — anti-extrusion support under high-cycle pressure loads
    • Buffer seal (where applicable by cylinder model)

    Key Features

    • Manufactured to Komatsu OEM specifications for direct-fit replacement
    • Rated for high-pressure, high-cycle crawler dozer hydraulic systems
    • Resistant to hydraulic oils, wear, abrasion, and thermal degradation
    • Compatible with mineral-based and water-glycol hydraulic fluids
    • Operating temperature range: -40°F to +212°F (-40°C to +100°C)
    • All components included for a complete single-cylinder rebuild

    Compatible Applications

    Designed for Komatsu crawler dozer hydraulic cylinders including blade lift, blade tilt, ripper lift, and ripper tilt cylinders. Common fitment models include the D31, D37, D39, D51, D61, D65, D85, and D155 series dozers. Specify your cylinder bore size, rod diameter, and dozer model when ordering to confirm correct kit fitment.

    An all-in-one solution for scheduled maintenance and field rebuilds — engineered to restore OEM sealing performance and extend cylinder service life.

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    Model Specifications

    Specifications: Weight: 0.1600 lbs Product Type: Hydraulic Seal Kit Machine Type: Crawler Dozer Application: 3 Point Hitch Rod: 45 mm Bore: 80 mm Code: P-U-14 Serial Number: 40001- Model Number: D31E-18 Cylinder: 113-63-49500 Machine Type Model Application Cylinder Serial Crawler Dozer D31E-18 3 Point Hitch 113-63-49500 40001 and after Crawler Dozer D31E-18 3 Point Hitch 113-63-49600 40001 and after Crawler Dozer D31P-17A, D31P-17B 3 Point Hitch 113-63-49500 32001 and after Crawler Dozer D31P-17A, D31P-17B 3 Point Hitch 113-63-49600 32001 and after Crawler Dozer D31P-18, D31PL-18, D31PLL-18 3 Point Hitch 113-63-49500 40001 and after Crawler Dozer D31P-18, D31PL-18, D31PLL-18 3 Point Hitch 113-63-49600 40001 and after Crawler Dozer D31P-18A 3 Point Hitch 113-63-49500 40001 and after Crawler Dozer D31P-18A 3 Point Hitch 113-63-49600 40001 and after Crawler Dozer D31Q-17 Dump 113-63-32500 32001 and after Crawler Dozer D31Q-17 Dump 113-63-32600 32001 and after Crawler Dozer D31Q-18 3 Point Hitch 113-63-49500 40001 and after Crawler Dozer D31Q-18 3 Point Hitch 113-63-49600 40001 and after Crawler Dozer D31S-17 Bucket Clam (MP) 113-63-59500 32001 and after Crawler Dozer D31S-17 Dump 113-63-32500 32001 and after Crawler Dozer D31S-17 Dump 113-63-32600 32001 and after Crawler Dozer D31S-18 3 Point Hitch 113-63-49500 40001 and after Crawler Dozer D31S-18 3 Point Hitch 113-63-49600 40001 and after Crawler Dozer D31S-18 Bucket Clam (MP) 113-63-59500 40001 and after Crawler Dozer D37E-1, D37P-1 3 Point Hitch 113-63-49500 1001 and after Crawler Dozer D37E-1, D37P-1 3 Point Hitch 113-63-49600 1001 and after Crawler Dozer D37E-2, D37P-2 3 Point Hitch 113-63-49500 2001 and after Crawler Dozer D37E-2, D37P-2 3 Point Hitch 113-63-49600 2001 and after