7162061 Cylinder Seal Kit for Bobcat 331/430 Excavators
7162061 Arm Cylinder Seal Kit — Product Overview
The 7162061 Arm Cylinder Seal Kit is a precision aftermarket replacement for Bobcat 331 and 430 excavator arm cylinders. Engineered for 1-3/4″ rod and 3″ bore hydraulic cylinders, this kit matches cylinder assembly 7156133 and provides complete reseal coverage for the crowd function on Bobcat 331/430 series excavators.
The arm cylinder on Bobcat 331/430 excavators handles the digging and crowd force — pulling the bucket toward the cab under heavy excavation loads. Seal failure in the arm circuit leads to arm drift under digging resistance, reduced breakout force during trenching, and external hydraulic oil leakage. The 7162061 kit addresses these failure modes with application-matched seal compounds.
Manufactured with high-performance polyurethane rod seals and NBR static seals etc for reliable fluid containment across the full operating temperature range of Bobcat excavators. DJF Seals supplies the 7162061 at factory-direct wholesale pricing — one kit supporting arm cylinder positions on both Bobcat 331 and 430 platforms.
Technical Specifications
| Parameter | Specification |
| OEM Part Number | 7162061 |
| Cross Reference Cylinder | 7156133 |
| Compatible Brand | Bobcat |
| Cylinder Application | Arm Cylinder (Crowd) |
| Rod Diameter | 1-3/4″ (44.5 mm) |
| Bore Diameter | 3″ (76.2 mm) |
| Material | Polyurethane, NBR, PTFE etc |
| Kit Contents | Rod seal, Piston seal, Wiper, O-rings, Backup rings |
| Condition | New, Aftermarket Replacement |
| Business Type | Factory Direct Wholesale |
Compatible Models
- Bobcat 331 — Arm Cylinder (Cyl: 7156133)
- Bobcat 430 — Arm Cylinder (Cyl: 7156133)
Key Features & Benefits
- Digging-Force Endurance — Polyurethane rod seals engineered for the high breakout loads and repetitive crowd cycles of Bobcat 331/430 arm cylinders, maintaining seal integrity under trenching and excavation stress.
- Cylinder 7156133 Match — Direct replacement for cylinder assembly 7156133. 1-3/4″ rod × 3″ bore specification ensures precise fit without modification.
- Dual-Model Coverage — One kit fits both Bobcat 331 and 430 arm cylinders, reducing the number of unique SKUs required for fleet maintenance inventory.
- Complete Reseal Kit — Includes rod seal, piston seal, wiper, O-rings, and backup rings — all seals required for a full arm cylinder overhaul in one package.
- Factory-Direct Wholesale — Competitive pricing with flexible minimum order quantities. OEM/ODM service and custom packaging available for Bobcat parts distributors.
