6816534 Arm Cylinder Seal Kit — Product Overview

The 6816534 Arm Cylinder Seal Kit is a precision-engineered aftermarket replacement for Bobcat 320, 320D, and X-320 excavators. Designed for the arm (dipper) cylinder, this kit restores hydraulic integrity with 1-1/2″ rod and 2-3/8″ bore dimensions — matching OEM cylinder specification 6816534.

Manufactured with high-grade polyurethane (PU), nitrile butadiene rubber (NBR), and PTFE composite materials etc, the 6816534 kit delivers reliable sealing performance under the demanding dig cycles typical of compact excavator operation. Each kit includes all necessary seals for a complete cylinder reseal: rod seal, piston seal, wiper, O-rings, and backup rings.

As a direct factory supplier, DJF Seals provides the 6816534 seal kit at wholesale pricing with flexible MOQ — ideal for equipment rental fleets, independent repair shops, and aftermarket parts distributors.

Technical Specifications

Compatible Models

• Bobcat 320 — Arm Cylinder (S/N: 22411001-Up)
• Bobcat 320D — Arm Cylinder (S/N: 223811001-Up)
• Bobcat X-320 — Arm Cylinder

Key Features & Benefits

• Precision Fit — Matches Bobcat OEM cylinder 6816534 specifications. 1-1/2″ rod × 2-3/8″ bore. Direct drop-in replacement, no modification needed.
• Complete Reseal Kit — Includes rod seal, piston seal, wiper, O-rings, and backup rings. Everything needed for one full cylinder rebuild.
• Heavy-Duty Materials — Polyurethane rod seals for superior abrasion resistance; NBR O-rings for consistent compression set; PTFE backup rings prevent extrusion under high pressure.
• Factory-Direct Pricing — Eliminate distributor markups. Wholesale pricing with flexible MOQ for repair shops and parts distributors.
• Fast Global Shipping — Stock available. Ships by air, sea, or express within 24-48 hours of order confirmation.