6818252 Boom Cylinder Seal Kit — Product Overview

The 6818252 Boom Cylinder Seal Kit is a heavy-duty aftermarket replacement for Bobcat 337G, 337WG, and 341G excavators. Designed for the boom cylinder with 2-1/4″ rod and 4″ bore dimensions, this kit matches OEM cylinder specification 6818252 and cross-references to seal kit 6817183.

The boom cylinder on the 337G/341G platform handles some of the largest structural loads in the Bobcat excavator lineup — lifting multi-ton bucket payloads through continuous production cycles in quarry, demolition, and heavy construction applications. With a 4″ bore (the largest in the Bobcat excavator range), seal integrity is critical for maintaining lifting power and preventing boom drift under load.

The 6818252 kit uses high-grade polyurethane for the main rod seal, PTFE backup rings for extrusion resistance at maximum boom lift pressure, and NBR static seals etc for reliable containment. DJF Seals supplies this kit at factory-direct wholesale pricing — serving large excavator repair centers and international heavy equipment parts distributors.

Technical Specifications

Compatible Models

• Bobcat 337G — Boom Cylinder (Cyl: 6818252, S/N: 234611001-Up)
• Bobcat 337WG — Boom Cylinder (Cyl: 6818252, S/N: 234611001-Up)
• Bobcat 341G — Boom Cylinder (Cyl: 6818252, S/N: 234711001-Up)

Key Features & Benefits

• Largest Bobcat Bore — 4″ bore is the biggest in the Bobcat excavator range. Engineered for the extreme lift forces of the 337G/341G heavy-class platform.
• OEM Cylinder Direct Match — 2-1/4″ rod × 4″ bore. Direct replacement for Bobcat cylinder 6818252. Cross-references to seal kit 6817183.
• Boom-Duty Pressure Handling — PTFE backup rings prevent seal extrusion under maximum boom lift pressure; PU rod seal handles repetitive high-load lift/lower cycles.
• Complete Reseal Kit — Rod seal, piston seal, wiper, O-rings, and backup rings included for a full boom cylinder rebuild.
• Factory-Direct Wholesale — Competitive pricing with bulk order discounts. Container shipping available for international heavy equipment distributors.