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Cat® 550-5783 Travel Motor Shaft Seal for 320D2, 320D3, and 323D3 Excavators

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  2. Cat® 550-5783 Travel Motor Shaft Seal for 320D2, 320D3, and 323D3 Excavators
Cat® 550-5783 Travel Motor Shaft Seal for 320D2, 320D3, and 323D3 Excavators
Cat® 550-5783 Travel Motor Shaft Seal for 320D2, 320D3, and 323D3 Excavators

Protect your final drive with the Cat® 550-5783 Travel Motor Shaft Seal. Made from premium Fluoroelastomer (FKM) rubber, this seal is resistant to heat, oil, and dry rot, ensuring leak-proof performance for Cat 320D2, 320D3, and 323D3 excavators. High-quality B2B heavy machinery parts for international export. Shop now for global shipping.

Technical Specifications 550-5783 - Travel Motor Shaft Seal for CAT Excavators

550‑5783 Travel Motor Shaft Seal — High‑Temperature FKM Final Drive Oil Seal

The Cat® 550‑5783 Travel Motor Shaft Seal is a precision sealing part for excavator final drive and travel motor assemblies. Installed on the rotating shaft of the travel motor, it blocks internal hydraulic oil leakage and prevents external mud, water, sand and other impurities from entering the gearbox. Made of high‑grade FKM fluoroelastomer material, it maintains stable sealing performance under high‑temperature, high‑pressure and heavy‑vibration construction‑site working conditions.

1. Technical Specifications

Technical ParameterSpecification Details
Part Number550‑5783 (5505783)
Product TypeTravel Motor Rotary Shaft Oil Seal
Core MaterialFKM High‑Temperature‑Resistant Fluoroelastomer Rubber
Applicable SystemFinal Drive & Travel Motor Sealing Assembly
Key PerformanceOil‑Resistant, Anti‑Corrosion, Anti‑Aging, Anti‑Dry‑Rot
Core FunctionPrevent Oil Leakage & External Contaminant Intrusion

2. Machine Compatibility

This OEM‑standard travel motor shaft seal fits mainstream CAT medium‑sized excavator series:

  • Next‑Gen & D2/D3 Excavators: 320D2, 320D2 L, 320D3, 323D3

  • Medium Excavator Series: 322, 324 Platform Models

3. Key Features & Advantages

  • Premium FKM Material Performance: High‑quality fluoroelastomer rubber features excellent heat resistance, oil resistance and chemical stability, resisting long‑term high‑load operational aging.

  • Harsh‑Environment Anti‑Corrosion: Special formula resists acidic‑soil corrosion and chemical erosion, suitable for mining, wetland and complex construction environments.

  • Long‑Term Elasticity Maintenance: Precisely formulated rubber compound avoids hardening, cracking and dry‑rot failure caused by long‑term static‑dynamic alternating work.

  • 1:1 OEM‑Precision Size: Strictly manufactured to CAT original tolerances, reducing shaft friction wear and achieving zero‑leakage sealing effect.

Commercial Reference Information
Product: Travel Motor Rotary Shaft Oil Seal
Cross Part Number: 5505783
MOQ: 1 Unit
Warranty Period: 6‑12 Months

For bulk wholesale, technical consultation and final‑drive sealing‑component solutions:

Xuzhou Sinoswift Import & Export Co., Ltd.
Contact: +86 13701956981
Email: [email protected]

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