SWAFLY Replacement Pump Device Assy 9257596RM / 9257596 for HITACHI ZX330-3 Excavator - High-Quality Construction Machinery Spare Parts
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SWAFLY Replacement Pump Device Assy 9257596RM / 9257596 for HITACHI ZX330-3 Excavator - High-Quality Construction Machinery Spare Parts
Product Details and Application
Welcome to SWAFLY, your reliable source for premium construction machinery spare parts and heavy equipment components. We specialize in providing high-quality replacement parts for major brands, including HITACHI. This listing features the Pump Device Assy with part numbers 9257596RM and 9257596RM, 9257596, 9257596. This critical component is designed for the HITACHI ZX330-3 excavator, ensuring optimal hydraulic system performance. As a leading supplier of excavator parts and hydraulic pump assemblies, we guarantee that our products meet strict quality standards for durability and reliability. We are committed to offering the best aftermarket excavator parts to keep your machinery running efficiently, whether you need a final drive travel motor or a main hydraulic control valve.
SWAFLY Product Focus: Hitachi ZX330-3 Pump Device Assy
The Hitachi ZX330-3 Pump Device Assy, 9257596RM, 9257596RM, 9257596, 9257596 is a core component of the Hitachi ZX330-3's hydraulic system. Our replacement unit from SWAFLY provides a cost-effective alternative to OEM parts without compromising on performance or longevity. Beyond this main product, our extensive inventory covers excavator engine parts, hydraulic cylinder seals, undercarriage components, swing device gearboxes, and travel motor reduction gears. We supply parts for numerous Hitachi excavator models, including ZX200-5A, ZX350-5, and ZX890LCH-5A. Our long-tail keywords for search engine optimization include high-quality Hitachi ZX330-3 Pump Device Assy, replacement 9257596RM hydraulic pump, Hitachi ZX330-3 main pump price, excavator hydraulic pump suppliers, and aftermarket Hitachi parts online.
SWAFLY Main Business Scope and Long-Tail Keywords
SWAFLY's core business revolves around high-quality engineering machinery parts. We are specialists in excavator parts, dozer spare parts, loader parts, and other heavy construction equipment components. Our product lines are vast, covering everything from the smallest seals kits to complete engine assemblies and hydraulic main pumps. We actively integrate the following long-tail keywords to ensure our products are easily discoverable by global customers:
Hitachi ZX330-3 replacement Pump Device Assy 9257596RM
Cost-effective excavator hydraulic parts solution
Reliable heavy equipment swing device supplier
Quality aftermarket track adjuster for Hitachi ZX series
Excavator boom arm bucket cylinder parts
Isuzu engine components for Hitachi excavators
Crawler excavator final drive repair kit
Main control valve assembly for Hitachi Zaxis
Wholesale construction machinery engine parts
Genuine quality replacement hydraulic pump parts
Customized excavator hydraulic cylinder seals
Heavy machinery electrical components and sensors
Excavator cabin assembly and interior parts
Durable undercarriage parts for Hitachi excavators
Global shipping construction equipment spare parts
Best price Hitachi ZX330-3 final drive
High performance excavator travel device parts
Hitachi excavator diesel engine overhaul kits
Aftermarket control valve spool and relief valve
Mini excavator hydraulic pump repair and service
Hitachi Excavator Accessories Glossary
As experts in Hitachi parts, here are 10 key component explanations:
Main Pump (Pump Device Assy): A variable displacement pump that supplies pressurized hydraulic fluid to the entire system. Installed in the engine bay. HITACHI ZX330-3 Pump Device Assy.
Swing Device (Swing Motor/Gearbox): Converts hydraulic energy into rotational movement for the upper structure. Installed beneath the cab. HITACHI ZX240-5A Swing Device.
Travel Device (Final Drive): Converts hydraulic pressure into torque to drive the tracks. Located at the ends of the undercarriage. HITACHI ZX330-5A Travel Device.
Control Valve (Main Control Valve): Directs the flow of hydraulic fluid to the different actuators (cylinders, motors). Located in the center of the machine. HITACHI ZX280-5G CONTROL VALVE.
Boom Cylinder: Hydraulic actuator responsible for lifting and lowering the boom. Attached between the frame and the boom. HITACHI ZX450-3 CYL BOOM.
Arm Cylinder: Hydraulic actuator that extends and retracts the arm (stick). Attached between the boom and the arm. HITACHI ZX290-5 CYL ARM.
Bucket Cylinder: Hydraulic actuator controlling the movement of the bucket. Attached between the arm and the bucket. HITACHI ZX240-5A CYL BUCKET.
Track Adjuster (Recoil Spring Assy): Maintains the correct tension on the track chain. Installed inside the track frame. HITACHI ZX350-5 track adjuster.
Cab Assy (Cabin): The operator's enclosure, providing control and protection. Mounted on the upper structure. HITACHI ZX210-3 CAB-ASSY.
Engine: The power source of the excavator, often an Isuzu or Cummins diesel unit in Hitachi machines. Located in the engine bay. HITACHI ZX130-5A 4JJ1XKSA03 Engine.
Product Knowledge: Understanding the Pump Device Assy
The Pump Device Assy, identified by part numbers 9257596RM and 9257596 for the Hitachi ZX330-3, is the heart of the hydraulic system. It typically comprises one or more variable displacement piston pumps that convert the engine's mechanical power into hydraulic energy. These pumps are essential for powering all the machine's movements, including the boom, arm, bucket, swing, and travel functions. Proper function of the main pump is crucial for the overall speed, power, and efficiency of the excavator. Regular maintenance and using high-quality replacement hydraulic pump components like those from SWAFLY can prevent costly downtime. The "RM" often denotes a remanufactured or specialized version of the part, while the base number 9257596 remains the core identifier for the Pump Device Assy.
Equipment Fault Analysis and Solution
Equipment: Heavy-Duty Truck - Volvo VNX 640
Fault: Engine Overheating under Load (High Coolant Temperature)
Analysis: The Volvo VNX 640 engine shows normal temperature at idle but quickly overheats when climbing a grade or under heavy payload. Common causes include a failing fan clutch, restricted radiator fins, low coolant level, faulty thermostat, or a failing water pump. In this specific case, inspection revealed that the viscous fan clutch was not engaging fully at high temperatures, leading to insufficient airflow across the radiator when maximum cooling was needed.
Solution: Replace the defective fan clutch assembly. Also, perform a thorough cleaning of the radiator and charge air cooler fins to ensure maximum heat dissipation. Check the coolant mixture and level. If the fan clutch replacement resolves the issue, the overheating was purely an airflow problem under load. This principle applies to heavy equipment like Hitachi excavators where engine components like the water pump and radiator are vital.
SWAFLY Product List for Hitachi Excavators
| No. | Brand | Part No. | Alternative Part No. | Model | Description |
|---|---|---|---|---|---|
| 1 | 日立 | 9306368 | ZX350-5 | track adjuster | |
| 2 | 日立 | 9312060 | ZX290-5 | track adjuster | |
| 3 | 日立 | YA00028290H3 | ZX890LCH-5A | CYL.;BOOM | |
| 4 | 日立 | YA00028291H3 | ZX890LCH-5A | CYL.;BOOM | |
| 5 | 日立 | YA00028294H3 | ZX890LCH-5A | CYL.;BUCKET | |
| 6 | 日立 | YA00028292H3 | ZX890LCH-5A | CYL.;ARM | |
| 7 | 日立 | 4697128 | ZX670LCH-5G | CYL.;BOOM | |
| 8 | 日立 | 4697129 | ZX670LCH-5G | CYL.;BOOM | |
| 9 | 日立 | YA00028285 | ZX490LCH-5A | CYL.;BOOM | |
| 10 | 日立 | YA00028286 | ZX490LCH-5A | CYL.;BOOM | |
| 11 | 日立 | 4637751 | ZX450-3 | CYL.;BOOM | |
| 12 | 日立 | YA00023611 | ZX130-5A | 4JJ1XKSA03 Engine | |
| 13 | 日立 | 4625874 | ZX330-3 | 6HK1 Engine | |
| 14 | 日立 | 9312271 | ZX200-5A | CYL.;ARM | |
| 15 | 日立 | 9309801 | ZX240-5A | CYL.;BOOM | |
| 16 | 日立 | 9309802 | ZX240-5A | CYL.;BOOM | |
| 17 | 日立 | 9309803 | ZX240-5A | CYL.;ARM | |
| 18 | 日立 | 9309804 | ZX240-5A | CYL.;BUCKET | |
| 19 | 日立 | 9309805 | ZX280-5G/300-5A | CYL.;BOOM | |
| 20 | 日立 | 9309806 | ZX280-5G/300-5A | CYL.;BOOM | |
| 21 | 日立 | 9309807 | ZX280-5G/300-5A | CYL.;ARM | |
| 22 | 日立 | 9309808 | ZX280-5G/300-5A | CYL.;BUCKET | |
| 23 | 日立 | 9307832 | ZX330-5A | CYL;BOOM(R) | |
| 24 | 日立 | 9307833 | ZX330-5A | CYL;BOOM(L) | |
| 25 | 日立 | 9312267 | ZX330-5A | CYL;ARM | |
| 26 | 日立 | YA00028287 | ZX470-5G/490-5A | CYL.;ARM | |
| 27 | 日立 | 4697130 | ZX670-5G/690-5A | CYL.;ARM | |
| 28 | 日立 | 4697132 | ZX670-5G/690-5A | CYL.;BUCKET | |
| 29 | 日立 | YB00007154 | 9243839 | ZX240-5A | TRAVEL-DEVICE |
| 30 | 日立 | YA00086816 | YA00037264H3 | ZX870-5G/890-5A | VALVE;CONTROL |
| 31 | 日立 | YA00037263 | ZX670-5G/690-5A | VALVE;CONTROL | |
| 32 | 日立 | YA00028292 | ZX890-5A | CYL;ARM | |
| 33 | 日立 | YA00028294 | ZX890-5A | CYL.;BUCKET | |
| 34 | 日立 | YA00023717 | ZX 360-5A | 6HK1 engine | |
| 35 | 日立 | 9257596 | ZX330-3 | Pump Device Assy | |
| 36 | 日立 | 8076541 | ZX210-5 | H links | |
| 37 | 日立 | YA00040883 | guard | ||
| 38 | 日立 | YB60002115 | YB60002116 | ZX330-5A | Travel Device |
| 39 | 日立 | YB60003036 | YB60003210 | ZX350LC-7 | Travel Device |
| 40 | 日立 | 4668620 | ZX400LCH-5A | Drive Motor | |
| 41 | 日立 | 9242907 | ZX240-3/-3G/-5A | Drive Motor | |
| 42 | 日立 | 9281841 | ZX330-3/-3G/-5G/-5A | Drive Motor | |
| 43 | 日立 | 9281842 | ZX330-3/-3G/-5G/-5A | Drive Motor | |
| 44 | 日立 | YB00002172 | ZX170LC-5A | Swing Device | |
| 45 | 日立 | YB60000181 | ZX240-5A/ZX260LCH-5A | Swing Device | |
| 46 | 日立 | YA00023705 | ZX200-5A | Engine | |
| 47 | 日立 | YA00023714 | ZX300-5A | Engine | |
| 48 | 日立 | YA00023717 | ZX330-5A/ZX400LCH-5A | Engine | |
| 49 | 日立 | YB60001526 | ZX300-5A | Pump Device | |
| 50 | 日立 | YD00013056 | ZX70-5G/ZX70-5A | Piston Pump | |
| 51 | 日立 | 9260886 | ZX330-3/ZX330-5A | Single Pump | |
| 52 | 日立 | YB60000802 | ZX300-5A | Single Pump | |
| 53 | 日立 | 9257346 | ZX270-3 | Pump assy | |
| 54 | 日立 | 9257596 | ZX330-3 | Pump assy | |
| 55 | 日立 | 4680289 | ZX850-3 | CAB-ASSY | |
| 56 | 日立 | 4688424 | ZX210-3-AMS | CAB | |
| 57 | 日立 | 4664059 | ZX850-3 | CAB-ASSY | |
| 58 | 日立 | 4456025 | ZX75US-A | CAB | |
| 59 | 日立 | 4665069 | ZX330-3 | CAB | |
| 60 | 日立 | 4684104 | ZX210H-3 | CAB | |
| 61 | 日立 | 4684376 | ZX210-3-AMS | CAB | |
| 62 | 日立 | 4676661 | ZX170W-3 | CAB | |
| 63 | 日立 | 4679733 | ZX225US-3 | CAB | |
| 64 | 日立 | 4671395 | ZX225USLC-3M | CAB | |
| 65 | 日立 | 9255047 | ZX80SB-HCME | CAB | |
| 66 | 日立 | 4664052 | ZX470R-3F | CAB-ASSY | |
| 67 | 日立 | 4701969 | ZX135USL-3 | CAB | |
| 68 | 日立 | 4693950 | ZX75US-3 | CAB | |
| 69 | 日立 | YA00038618 | ZX490LCH-6 | CAB | |
| 70 | 日立 | YA00056769 | ZX380LC-6N | CAB | |
| 71 | 日立 | YA00038612 | ZX530LCH-6 | CAB | |
| 72 | 日立 | YA60044286 | ZX470LC-6 | CAB | |
| 73 | 日立 | YA60044290 | ZX670LC-6 | CAB | |
| 74 | 日立 | YA00038614 | ZX670LC-6 | CAB | |
| 75 | 日立 | YD00009465 | ZX75USK-5B | CAB | |
| 76 | 日立 | YD00003848 | ZX85US-5A | CAB | |
| 77 | 日立 | YD00006071 | ZX85US-5A | CAB | |
| 78 | 日立 | 4675684 | ZX135US-3 | CAB | |
| 79 | 日立 | YD00007123 | ZX85USB-5A | CAB | |
| 80 | 日立 | YD00010926 | 75G | CAB | |
| 81 | 日立 | YD60001182 | ZX70-5G | CAB | |
| 82 | 日立 | YA00037705 | ZX350LC-5N | CAB | |
| 83 | 日立 | 4693630 | ZX85USB-3 | CAB | |
| 84 | 日立 | YA00038692 | ZX135USL-5B | CAB | |
| 85 | 日立 | YA00037707 | 250G LC-IT4 | CAB | |
| 86 | 日立 | YA00037706 | ZX160LC-5N | CAB | |
| 87 | 日立 | YD00008908 | ZX55U-5A | CAB | |
| 88 | 日立 | 9219571 | ZX450H | Cabin | |
| 89 | 日立 | 9276399 | ZX200-3 | Cabin | |
| 90 | 日立 | H490386 | ZX360H-3G | Cabin | |
| 91 | 日立 | H490612 | ZX120 | Cabin | |
| 92 | 日立 | YD00011376 | ZX60C-5A | Cabin | |
| 93 | 日立 | 9257157 | ZX240-3 | Swing Device | |
| 94 | 日立 | YA00000721 | ZX280-5G/300-5A | VALVE;CONTROL | |
| 95 | 日立 | YA00000717 | ZX240-5A | VALVE;CONTROL | |
| 96 | 日立 | YA00000734 | ZX330-5A | VALVE;CONTROL | |
| 97 | 日立 | 4602026 | ZX240-3 | VALVE;CONTROL | |
| 98 | 日立 | 9234729 | ZX240-3G | CYL.;BOOM | |
| 99 | 日立 | 9246751 | ZX240-3G | CYL.;BUCKET | |
| 100 | 日立 | YA60059299 | ZX180 | CYL.;ARM | |
| 101 | 日立 | YA60059297 | ZX180 | CYL.;BOOM(R) | |
| 102 | 日立 | YA60059298 | ZX180 | CYL.;BOOM (L) | |
| 103 | 日立 | YA60070685 | ZX200-5A | CYL.;ARM | |
| 104 | 日立 | YA60059300 | ZX180 | CYL.;BUCKET | |
| 105 | 日立 | ZA60001970 | ZX200-5A | CYL.;BOOM | |
| 106 | 日立 | ZA60001971 | ZX200-5A | CYL.;BOOM | |
| 107 | 日立 | YA60082224 | ZX120-5A | CYL.;ARM | |
| 108 | 日立 | YA60028504 | ZX130-5A | CYL.;BOOM | |
| 109 | 日立 | YA60028505 | ZX130-5A | CYL.;BOOM | |
| 110 | 日立 | YA60070686 | ZX200-5A | CYL.;BUCKET | |
| 111 | 日立 | YA60028507 | ZX130-5A | CYL;BUCKET | |
| 112 | 日立 | 9323701 | ZX160-5B | CYL.;BOOM | |
| 113 | 日立 | 9323702 | ZX160-5B | CYL.;BOOM | |
| 114 | 日立 | YA60082225 | ZX120-5A | CYL.;BUCKET | |
| 115 | 日立 | 9275650 | ZX60-5G | CYL.;BOOM | |
| 116 | 日立 | ZA60001399 | ZX60C-6A | CYL.;BOOM | |
| 117 | 日立 | ZA60001400 | ZX60C-6A | CYL.;ARM | |
| 118 | 日立 | ZA60001401 | ZX60C-6A | CYL.;BUCKET | |
| 119 | 日立 | 9275649 | ZX60-5G | CYL;BUCKET | |
| 120 | 日立 | 9289617 | ZX130-5A | TRAVEL-DEVICE | |
| 121 | 日立 | 9261222 | ZX200-5A | TRAVEL-DEVICE | |
| 122 | 日立 | ZA60002095 | ZX200C-6A | TRAVEL-DEVICE | |
| 123 | 日立 | ZA00002711 | ZX200C-6A | TRAVEL-DEVICE | |
| 124 | 日立 | 9243839 | ZX240-5A | TRAVEL-DEVICE | |
| 125 | 日立 | 9281921 | ZX330-5A | TRAVEL-DEVICE | |
| 126 | 日立 | 9302718 | ZX490-5A | TRAVEL-DEVICE |
Custom Development and SWAFLY Global Service
In addition to our ready-stock products like the Hitachi ZX330-3 Pump Device Assy 9257596RM, SWAFLY offers comprehensive custom development services for various engineering machinery spare parts. If you require a specialized hydraulic component, a specific engine part, or a unique cylinder seal kit that is difficult to source, our engineering team can work with you to manufacture high-precision, durable, and reliable custom solutions. This includes complex parts such as travel motor final drives, swing device gearboxes, custom-sized boom/arm/bucket cylinders, and precision control valve spools.
Need a Customized Solution?
SWAFLY specializes in the custom design and manufacturing of various excavator hydraulic components, including the Pump Device Assy, Cylinders (Boom, Arm, Bucket), Travel Device, and Control Valves. Contact us with your specifications for any construction machinery part—we deliver precision and quality you can rely on!
Company Business and Official Websites
SWAFLY is dedicated to providing a full spectrum of engineering machinery parts, serving global markets with top-quality products. Our product focus covers heavy equipment engine components, hydraulic system parts (pumps, motors, valves, cylinders), undercarriage parts, and electrical components for brands like Hitachi, Isuzu, Kubota, and more. We strive to be the one-stop shop for global construction machinery spare parts trade.
Visit our official websites for more product information:
www.swaflyparts.com (Global Excavator Parts)
www.hitachi-isuzuparts.com (Hitachi & Isuzu Engine Parts Specialist)
www.mttparts.com (Machinery & Tractor Parts)
www.kubotaengine.ca (Kubota Engine & Parts)
www.machineryengine.com (Comprehensive Engine Parts)
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