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

5J-8225-3K Hydraulic Cylinder Seal Kit for Caterpillar Equipment

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

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

Wheel Loaders: 916, 924F, 930, 950F, 950G, 960F, 962G, 966C, 966F, 980C, 980F, 980G, 988B, 988F Caterpillar

Motor Graders: 120H, 12H, 135H, 140H, 143H, 14H, 160H, 163H, 14G Wheel Scrapers & Caterpillar

Tractors: 613C, 615, 615C, 621 Caterpillar

Excavators: 215D, 245B, 320B FM LL Caterpillar

Track Loaders: 931B, 941, 943, 951B, 963, 977K Specialized : 446B Backhoe Loader, IT14G/IT62G Integrated Toolcarriers, 826C Landfill Compactor, R1300 Load Haul Dump Caterpillar

Seal Kit Related Parts

Part No	Qty	Parts name
5J-8225	1	SEAL-U-CUP
8C-9125	1	SEAL
8C-9134	1	SEAL-LIP

Specifications

Part Number	5J-8225-3K (5J82253K)
Part Type	Hydraulic Cylinder Seal Kit / Service Kit
Application	Hydraulic Cylinder Rebuild
Brand	WINSCHEN
Country of Origin	China
SKU	CTC-5J-8225-3K
MOQ	1 SET
Delivery Time	1-3 business days

Unsure about fitment for your Caterpillar equipment? Contact our technical support team with your machine. We offer fast global shipping to keep your heavy machinery moving.

Related Caterpillar Seal Kit Categories

Browse more Caterpillar replacement parts or compare other hydraulic cylinder seal kits. For fitment confirmation, send the OEM part number, machine model through our inquiry form or WhatsApp.