OEM 4434402 SEAL;OIL HITACHI for ZX70-5A/4TNV98 Manufacturers, Supplier

product details

Description

Part Name	SEAL;OIL
Part Number	4434402
Brand Name	HITACHI
Place of Origin	Japan
Delivery Time	1-3 work days
Packaging Type	Cartons

	Precision Fluid Containment for Rotating Shafts – The Critical Barrier Against Oil Leakage and Contamination. This genuine Hitachi oil seal is engineered to maintain a reliable barrier around rotating shafts, preventing costly lubricant loss while blocking dirt, water, and abrasive particles from entering critical housings. Available in multiple OEM configurations including 0353318 (ZX300-7/6HK1T), 4244691 (EX100/EX120 series), 4259935 (EX60/EX75 series), 4662106 (EX60/4JG1), 4275482 (175x200x12mm), 4411535 (ZX160/ZX180/ZX200 transmission seal), 4179833 (EX220/ZX330-3/ZX350K-3), 5096250940 (mini excavator series), and 4177260 (floating oil seal for EX50U/ZX series). It preserves fluid levels and protects bearings and gears in engines, transmissions, final drives, and hydraulic motors.
Advanced Lip Geometry and Premium Elastomers – Built for Consistent Sealing Under Pressure. Manufactured from high-grade NBR (operating -40°C to 125°C) or FKM (fluororubber, up to 250°C), this seal features a precision-molded sealing lip with an integrated garter spring that maintains consistent radial pressure against the shaft. The special cross-sectional design ensures that during high-speed rotation, the lip forms a stable and extremely thin oil film, providing lubrication while preventing leaks. Many variants feature a dust-proof secondary lip that forms a barrier against external contaminants, scraping away incoming dust and mud to prevent secondary damage from abrasive wear. The rigid outer case ensures secure press-fit retention.		The High Cost of Seal Failure – Genuine Hitachi: Protect Your Investment from Premature Wear. A compromised or incorrectly matched oil seal leads to fluid leaks, contamination ingress, and accelerated component wear. In engine applications, a leaking front or rear main seal leads to oil loss, low oil pressure, and potential bearing starvation. In transmissions, leaking seals cause fluid loss and eventual transmission failure. Aftermarket seals often use inferior compounds that harden, swell, or lose their sealing force prematurely. This genuine Hitachi component meets all OEM specifications for lip geometry, material hardness, and dimensional accuracy—ensuring reliable, long-lasting equipment performance across thousands of operating hours.