4C-4782 O-Ring Seal Kit 580 Pieces for Caterpillar Hydraulic Fittings

4C-4782 O-Ring Seal Kit – High-Quality Aftermarket Replacement for Caterpillar Hydraulic Systems

Keep your Caterpillar hydraulic repairs stocked and ready with this premium aftermarket 4C-4782 O-ring seal kit. Containing **580 high-grade nitrile (NBR 90 durometer) O-rings** in 32 popular sizes, it’s designed as a direct replacement for OEM kits – ideal for SAE STOR, ORFS, Code 61/62 flange fittings, and high-pressure hose connections.

Key Benefits for Contractors and Operators

• Prevents Hydraulic Leaks: Reliable O-rings ensure tight seals on ports, fittings, and flanges, reducing oil loss and contamination in demanding systems.
• Direct Fit Installation: Exact OEM sizes for quick, hassle-free replacement during hose and fitting maintenance.
• Built Tough for Heavy Duty Use: Nitrile 90 duro material resists extrusion, heat, pressure, and wear in harsh job site conditions.
• Cost-Effective Alternative: Comprehensive assortment at aftermarket pricing – perfect for workshop stocking and fleet repairs.
• Fast Shipping: In stock and ready to ship within 1-3 days.

Compatible Caterpillar Models

This O-ring kit is essential for hydraulic fittings across a wide range of Caterpillar machines, including excavators, loaders, dozers, graders, compactors, and more (verify your parts manual for exact needs):

• Excavators: 320-395 series and many others
• Wheel Loaders: 950-992 series
• Track-Type Tractors, Motor Graders, Compactors, Scrapers, Trucks
• Most models with SAE STOR/ORFS and Code 61/62 hydraulic connections

Specifications

Questions? Contact us for size confirmation or bulk pricing. We stand behind our parts with fast shipping and easy returns.