5J-8225-3K Hydraulic Cylinder Seal Kit for Caterpillar CAT D6R 966F 980G 140H

5J-8225-3K Hydraulic Cylinder Seal Kit – Premium Aftermarket Repair Solution for Caterpillar

Restore peak hydraulic performance and eliminate fluid leaks with this professional-grade 5J-8225-3K hydraulic cylinder seal kit. Specifically engineered for an extensive range of Caterpillar (CAT) heavy machinery, including D6R dozers, 966/980 series wheel loaders, and H-series motor graders, this kit provides a high-pressure sealing solution for critical lift, tilt, and steering operations. Manufactured by WINSCHEN using industrial-grade elastomeric materials, these seals are built to withstand extreme friction and heat in the most demanding earthmoving and mining environments.

Key Features and Selling Points

• Eliminate Oil Leaks: Precision-engineered seals stop fluid loss and prevent cylinder drift, ensuring safe, responsive, and precise attachment control.
• Direct OEM Fit: Designed to match Caterpillar factory specifications exactly for a quick, hassle-free overhaul, significantly reducing labor costs and machine downtime.
• Industrial-Grade Durability: Superior resistance to high hydraulic pressure surges and abrasive contaminants like dirt, mud, and grit commonly found on job sites.
• Complete Service Kit: Includes essential rod seals, piston seals, and O-rings (8C-9125, 8C-9134) required for a comprehensive cylinder rebuild in one package.
• Cost-Effective Reliability: Delivers original equipment sealing performance at a competitive aftermarket price, maximizing your fleet’s operational efficiency and ROI.

Compatible Equipment Models

Based on official catalog data and industry-standard compatibility, the 5J-8225-3K kit fits various Caterpillar (CAT) models, including:

• Track-Type Tractors (Dozers): D3B, D4H, D5H, D5M, D6M, D6N, D6R, D6R II, D7R
• Wheel Loaders: 916, 924F, 930, 950F, 950G, 960F, 962G, 966C, 966F, 980C, 980F, 980G, 988B, 988F
• Motor Graders: 120H, 12H, 135H, 140H, 143H, 14H, 160H, 163H, 14G
• Wheel Scrapers & Tractors: 613C, 615, 615C, 621
• Excavators: 215D, 245B, 320B FM LL
• Track Loaders: 931B, 941, 943, 951B, 963, 977K
• Specialized Equipment: 446B Backhoe Loader, IT14G/IT62G Integrated Toolcarriers, 826C Landfill Compactor, R1300 Load Haul Dump

Specifications

Unsure about fitment for your Caterpillar equipment? Contact our technical support team with your machine serial number or cylinder part number for expert confirmation. We offer fast global shipping to keep your heavy machinery moving.