Hitachi ZAX330-1 / ZAX330-6 Upper Radiator Hose – (3093511 / YA00000849)

Description

Product Video

1. Key Features & Benefits

• Genuine OEM Specification – Part numbers 3093511 and YA00000849 (interchangeable variants). Manufactured to Hitachi‘s original equipment standards for the ZAX330-1, ZAX330-6, and compatible Zaxis series excavators. This is a brand‑new, factory‑spec component – not an aftermarket substitute.

• Critical Engine Cooling System Component – The upper radiator hose (also known as the coolant inlet hose) connects the engine to the radiator, serving as the primary conduit for hot coolant returning from the engine to be cooled. It ensures efficient coolant circulation, stabilises engine temperature, and prevents overheating during continuous heavy‑duty operation.

• Superior Heat and Pressure Resistance – Manufactured from high‑quality reinforced rubber, specifically engineered to withstand the extreme conditions of mining, quarrying, and heavy construction operations. The hose provides excellent resistance to:

  • High temperatures – withstands the extreme heat of engine coolant

  • Internal pressure – maintains structural integrity under pressurised cooling system conditions

  • Coolant chemicals – resists corrosion and degradation from antifreeze and coolant additives

  • Oil exposure – maintains performance even with minor oil contamination

  • Engine vibration – reinforced construction resists fatigue from continuous vibration

• Optimised Engine Performance and Longevity – A properly functioning upper radiator hose is critical for maintaining combustion efficiency, engine power output, and overall engine longevity. A cracked, swollen, or collapsed hose can cause coolant leaks, engine overheating, and potential engine damage.

• Extended Service Life – The reinforced rubber construction is oil‑ and aging‑resistant, providing long service life and reliable sealing performance. Produced according to OEM specifications for accurate fitment and reliable sealing.

• Direct Replacement for ZAX330-1 and ZAX330-6 – Designed specifically for Hitachi ZAX330-1, ZAX330-6, and compatible models including ZAX330LC, ZAX350, ZX350, ZX360, and related Zaxis series excavators. Hose connections and routing match the original Hitachi specifications exactly – no modifications required.

• Pre‑Shipment Visual Verification – Before packing, we send you detailed high‑resolution photographs of the actual unit (part number markings, hose condition, overall quality). You approve shipment – we never ship blind. Video inspection is also available upon request.

• Fast Delivery – 5–7 working days lead time from our Guangzhou warehouse. Flexible shipping options including DHL, TNT, UPS, FedEx, and sea freight.

2. Technical Specifications

3. Applications

The Hitachi 3093511 / YA00000849 upper radiator hose is a critical engine cooling component for ZAX330-1 and ZAX330-6 excavators used across a wide range of demanding job sites:

• Large‑Scale Open‑Pit Mining – ZAX330-1 and ZAX330-6 excavators are 30‑ton class machines that work 20+ hour shifts in extreme conditions. The upper radiator hose ensures a steady, uninterrupted flow of coolant from the engine to the radiator, maintaining stable engine temperatures even under continuous heavy loads. A cracked or bulging hose can cause sudden coolant loss, leading to rapid engine overheating and catastrophic engine damage – a repair that costs tens of thousands of dollars.

• Quarrying & Aggregates – Loading trucks, stockpile management, and material handling in granite, limestone, and basalt quarries generate significant heat loads on the engine. The reinforced rubber construction of this hose is specifically engineered to withstand high‑temperature, high‑vibration environments, ensuring reliable cooling system performance shift after shift.

• Heavy Construction & Infrastructure – Highway excavation, dam building, bridge footings, and large‑scale earthmoving projects place sustained high loads on the engine, generating significant heat. The hose‘s resistance to high temperature, internal pressure, and engine vibration ensures consistent coolant flow and stable engine temperatures throughout long shifts.

• Demolition & Scrap Processing – Shock loads, vibration, and rapid load changes are routine in demolition yards and metal recycling facilities. The hose‘s oil‑ and aging‑resistant construction maintains its integrity under these extreme conditions.

• Equipment Rental Fleet – 30‑ton excavators are high‑value rental assets. A genuine new upper radiator hose ensures reliable cooling system performance and prevents costly engine damage from overheating – avoiding mid‑rental breakdowns and customer complaints.

• Forestry & Land Clearing – Steep slopes, fallen timber, and uneven terrain place variable loads on the engine. The hose ensures consistent coolant flow, maintaining stable engine temperatures even under changing operating conditions.

4. FAQ – Frequently Asked Questions

Q1: Is this upper radiator hose an exact replacement for my Hitachi ZAX330-1 or ZAX330-6?

A: Yes. The 3093511 and YA00000849 are genuine OEM upper radiator hoses for Hitachi ZAX330-1, ZAX330-6, ZAX350-1, ZX350, ZX360, and compatible Zaxis series excavators. These part numbers are interchangeable variants. To confirm compatibility for your specific machine, send us your machine serial number and a photo of your old hose – we will verify within 2 hours.

Q2: Is this a new hose or a remanufactured unit?

A: It is brand new / genuine original, not remanufactured. The hose is manufactured to Hitachi‘s original specifications using high‑quality reinforced rubber and meets all OEM performance standards.

Q3: What materials is this hose made from?

A: The hose is manufactured from high‑quality reinforced rubber, specifically engineered for heavy‑duty excavator cooling systems. It offers excellent resistance to high temperature, internal pressure, coolant chemicals, oil exposure, and engine vibration.

Q4: What is the warranty on this hose?

A: The warranty period is 3 to 6 months depending on product details. We do not provide warranty service for genuine original parts. Our value is delivered up front: genuine OEM components, new‑condition hose, and pre‑shipment visual verification. For customers who require a warranty‑covered option, we can quote aftermarket alternatives – ask our sales team.

Q5: How long does delivery take?

A: Delivery is 5–7 working days after order confirmation. Flexible shipping options including DHL, TNT, UPS, FedEx, and sea freight are available.

Q6: What payment methods do you accept?

A: We accept T/T (wire transfer), Western Union, and PayPal.

Q7: How can I verify the hose is genuine before shipping?

A: Before packing, we send you clear, high‑resolution photographs of the actual unit – part number markings, hose condition, and overall quality. You approve shipment only after reviewing these images. We never ship blind. Video inspection is also available upon request.

Q8: How often should the upper radiator hose be replaced?

A: Hitachi recommends periodic inspection and replacement of rubber hoses as part of regular maintenance. We recommend inspecting the hose at every service interval and replacing it at the first sign of cracking, swelling, or hardening. In heavy‑duty mining and quarry applications, preventative replacement every 2–3 years is recommended to avoid unexpected failure.

Still have questions? Contact Hongtengda Parts – we reply within 24 hours.