Full view of 4246158 rubber coupling assembly

Close-up of flexible rubber hub for EX45‑2 pump

4246158 coupling installed on Hitachi EX45‑2 pump

Cross-section showing rubber radial flexibility

EX45‑2 pump connection with coupling in use

Material surface texture of flexible coupling

4246158 Flexible Rubber Coupling – EX45‑2 Pump Coupler for Hitachi Excavator

Durable flexible rubber coupling 4246158 for EX45‑2 Hitachi excavator pump parts vibration dampening.

Product Features

High‑elasticity rubber ensures smooth torque transmission
Designed specifically for EX45‑2 pump shaft alignment
Absorbs torsional vibration, protects gearbox and pump seals
Easy replacement—direct-fit with OEM part number 4246158

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Coupling Part Description

The 4246158 flexible rubber coupling is engineered for Hitachi EX45‑2 excavator hydraulic pumps, combining durable rubber and precision molding to ensure seamless torque transfer and vibration absorption. It stabilizes pump operation, reduces mechanical stress, and prolongs drive system life. Manufactured to match OEM specifications, the YNF replacement ensures direct compatibility and easy installation. Ideal for procurement of excavator parts and maintenance programs seeking reliability and reduced downtime.

Coupling Technical/Data Sheet

Specification	Detail
Applicable Model	Hitachi EX45‑2 Excavator Pump
OEM Part Number	4246158
YNF Part Number	YNF4246158
Part Category	Flexible Pump Coupling
Material	High-durability synthetic rubber
Documentation	Installation instructions (PDF)
Fitment	Coupling between pump and motor shaft
Origin	China – YNF Rubber
Brand	YNF
MOQ	10 pieces
Shipping Options	Sea / Air / Ground freight
Payment Terms	T/T, L/C, D/P

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Improve pump performance and reduce maintenance costs with the 4246158 flexible rubber coupling for EX45‑2 Hitachi excavators. Designed to dampen torsional vibration and seamlessly connect pump and motor shafts, it matches OEM specifications for fast, hassle-free installation. YNF’s precise replacement guarantees brand-new drive performance at a competitive price. Contact us today for a free quote to support your equipment uptime.

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Products Categories

Flexible Rubber Couplings

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FOR BREAKERS / COMPACTORS

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Coupling Part Applications

Application Area	Description
Hydraulic Systems	Provides flexible coupling for EX45‑2 pump and motor shaft to reduce stress
Earthmoving	Ensures smooth hydraulic flow under load during excavation tasks
Construction	Helps maintain precise pump operation in construction machinery
Maintenance Teams	Common replacement part in pump repair and rebuild kits

Coupling Rubber Detail Display

More Information

Related Products & FAQs

Related Parts: YNF also offers rigid couplings, drive shaft bushings, and gear coupling kits compatible with Hitachi EX excavators.
FAQs:
- Can this coupling withstand heavy-duty duty cycles?
  Yes, it is engineered to absorb high torque and vibration typical of excavation tasks.
- Is direct OEM replacement guaranteed?
  Yes, YNF4246158 matches OEM 4246158 dimensions and elastomer compound.
- Lead time for bulk orders?
  Typically 4–6 weeks for MOQ of 10 pieces, with expedited options available.