336 Pieces O Ring Seal Kit for CAT Caterpillar Excavator Loader Bulldozer Construction Machinery Repair

336 Pieces O Ring Seal Kit for CAT Caterpillar Excavator Loader Bulldozer Construction Machinery Repair

Product Overview:
Our 336 Pieces O Ring Seal Assortment Kit is specially engineered as aftermarket replacement seals for all mainstream CAT Caterpillar heavy-duty construction machinery, widely used by US mechanics, repair shops and construction fleets. This all-in-one oring box covers most daily hydraulic maintenance needs, eliminating frequent trips to parts stores and cutting machine downtime.

Specification:
Total Quantity: 336 pieces with multiple standard SAE sizes
Material: High-quality NBR 90 Nitrile Rubber
Core Performance: Oil resistant, wear resistant, anti-aging, wide temperature tolerance (-58°F ~ 356°F)
Storage: Hard plastic compartmentalized case with printed size chart, easy sorting & carrying
Application Standard: Matches CAT factory hydraulic fitting specs for excavator, loader, bulldozer, skid steer

Main Advantages:
Perfect Fit for CAT Machines
All oring sizes are calibrated to match Caterpillar hydraulic systems, including hydraulic cylinders, distribution valves, rotary pumps, hose connectors and pipeline joints. Ideal for CAT 320, 330, E series excavators, 950/966 wheel loaders and D series bulldozers.

Heavy-Duty NBR 90 Rubber Sealing
Industrial-grade nitrile rubber resists hydraulic oil, diesel fuel and extreme working temperatures. Effectively stop fluid leaks, extend service life of your CAT equipment and reduce frequent seal replacements.

Cost-Effective All-in-One Repair Kit
336 mixed-size o-rings cover over 90% of routine CAT hydraulic leak repair jobs. Bulk assortment saves huge costs compared to buying single-size seals separately, great for small repair shops and private fleet maintenance.

Wide Application Scenarios:
CAT Excavator Hydraulic System Repair
Wheel Loader & Skid Steer Hose Fitting Sealing
Bulldozer, Backhoe & Road Roller Oil Line Maintenance
Hydraulic Pump, Cylinder & Control Valve Leak Fix
Agricultural CAT Heavy Machinery Service
Auto & Heavy Equipment Shop Universal Backup Seal Stock

Package Includes:
1 × 336PCS Assorted NBR O-Ring Storage Case
Full printed size reference chart on box lid for quick lookup