33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
Home / Products / Hydraulic Pump / Eaton
Product Overview
This high-performance repair seal kit is engineered for Eaton 4621 series axial piston hydraulic pumps, widely used in medium-pressure heavy-duty hydraulic systems. It covers the full 4621 displacement range and includes all essential sealing components for complete pump overhaul and maintenance.
Manufactured with premium imported NBR nitrile rubber and FKM fluororubber, the kit delivers exceptional resistance to oil, high pressure, wear, and aging. It is a direct OEM replacement for Eaton 4621 original seals, effectively resolving external leakage, internal bypass, and pressure drop issues. It extends pump service life under continuous heavy-load, high-cycle operating conditions.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Eaton 4621 Hydraulic Pump Seal Kit |
Applicable Model |
4621 Series Axial Piston Pump (displacement range: 55cc–100cc/rev) |
Compatible Series |
Eaton 4621 / 4623 hydraulic pump series |
Main Material |
Imported NBR / FKM fluororubber + reinforced backup rings |
Max Working Pressure |
35MPa (350bar) |
Working Temperature |
-20°C ~ 110°C |
Kit Contents |
Shaft seal, O-rings, gaskets, backup rings, wear rings, full overhaul sealing parts |
Cross Reference OEM No. |
(To be filled with actual OEM numbers) |
Net Weight |
Approximately 1.0kg |
Applicable System |
Medium-pressure hydraulic drive, industrial machinery, mobile equipment, and transit mixer systems |
Warranty |
12 Months |
Key Selling Points
1. 100% Exact OEM Replacement.Fully compatible with original Eaton 4621 pumps, matching OEM part numbers precisely. No modification required, enabling quick direct installation for routine overhaul and emergency repair.
2. Premium Imported Sealing Materials.Core seals use high-performance FKM fluororubber and reinforced backup rings. Resists hydraulic oil corrosion, high temperature, and fatigue; maintains stable sealing performance from -20°C to 110°C.
3. High Pressure & Durability.All components undergo strict 35MPa high-pressure and cycle fatigue testing. Eliminates internal/external leakage, stabilizes hydraulic pressure, and ensures consistent efficiency and output under harsh conditions.
4. Complete All‑in‑One Overhaul Kit.Includes all sealing accessories for full pump maintenance, including shaft seals and wear rings. Integrated packaging simplifies part management, shortens repair time, and reduces overall maintenance costs.
5. Strict Factory Quality Control.Each kit passes air tightness, high-pressure, and aging tests before shipment. Complies with original Eaton factory standards, ensuring reliable long-term operation for industrial and mobile machinery.
6. Wide Application Scope.Suitable for Eaton 4621 pumps on diverse heavy-duty and engineering equipment:
Welcome to HOVOO, a Chinese seal factory. Production of PU, Rubber and PTFE seals. The seals include O-ring, piston seal, rod seal, Gray ring and gas seal.
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