478-7051 Boom Cylinder Seal Kit for Caterpillar Mini Excavators 304E2 304.5E2

478-7051 Boom Cylinder Seal Kit – High-Quality Aftermarket Replacement for Caterpillar Mini Excavators

Restore smooth boom operation and stop hydraulic leaks with this premium aftermarket 478-7051 boom cylinder seal kit. Designed as a complete direct replacement for the boom cylinder on Caterpillar mini excavators, it includes all necessary seals, wear rings, and O-rings to prevent fluid loss, reduce contamination, and maintain reliable performance in tight spaces and light-to-medium duty digging applications.

Key Features

• Stops Hydraulic Leaks: High-quality seals and wear rings effectively contain fluid and protect the cylinder from scoring.
• Direct Fit Installation: Complete kit matches OEM specifications for quick, hassle-free repair – minimize machine downtime.
• Built Tough for Heavy Duty Use: Durable materials resist high pressure, heat, and abrasive conditions on job sites.
• Cost-Effective Alternative: OEM-level performance at aftermarket pricing – ideal for routine maintenance and fleet repairs.
• Fast Shipping: In stock and ready to ship within 1-3 days.

Compatible Equipment Models

Specifications

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

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.