Expert Solutions for Abnormal Engine Speed and Throttle Failure in Hitachi Machinery
We support custom development and mass production of various engine cylinder liners for global export. Factory direct prices with premium quality standards.
| Brand | Model | Part Number (Standard) | Part Number (Search Friendly) | Product Name |
|---|---|---|---|---|
| Hitachi | EX200-2 / EX200-3 | 4614911 | 4614911 | Hitachi Stepping Motor |
| Hitachi | EX200-5 / EX120-5 | 4360509 | 4360509 | Hitachi Throttle Motor |
| Hitachi | ZX200-3 / ZX210-3 | 4614911-S | 4614911S | Accelerator Actuator |
Superior Compatibility: Perfectly designed for Hitachi Excavator engine control systems to replace OEM 4614911.
Precision Response: High-precision stepping motor ensures accurate fuel control and engine responsiveness.
Durable Construction: Manufactured with industrial-grade materials for long-term use in harsh construction environments.
Easy Installation: Plug-and-play design compatible with original Hitachi wiring harnesses 4360509.
Cost-Effective: High-quality domestic replacement that solves abnormal speed fluctuations at a factory-direct price.
We are a leading provider of comprehensive engine solutions, specializing in Cummins Engine Rebuild Kits, Komatsu Excavator Spares, Caterpillar Heavy Duty Parts, and Isuzu Diesel Engine Components. Our inventory includes Kubota Maintenance Parts, Yanmar Agricultural Engine Parts, and Weichai Power Systems.
Cylinder Liner & Piston Kits
Crankshaft & Connecting Rods
Full Gasket Overhaul Kits
Fuel Injectors & Diesel Pumps
Turbochargers & Water Pumps
Main & Con-Rod Bearings
Aftermarket Engine Overhaul, Heavy Equipment Spare Parts, Excavator Hydraulic Components, Industrial Diesel Engine Repair, High Pressure Fuel Pump, Precision Engine Valve Seat, Replacement Turbocharger for CAT, Komatsu Cylinder Block Assembly, Isuzu Genuine Quality Gasket, Yanmar Fuel Injection System, Cummins QSB6.7 Maintenance, Volvo D6D Engine Rebuild, Hino J08E Spare Parts, Mitsubishi 4D34 Engine Spares, Excavator Monitor Replacement, Flameout Solenoid Valve 24V, Radiator Cooling Systems, Main Control Valve Seal Kit, Engine Oil Pump Assembly, High Strength Cylinder Head Bolts.
| Brand | Compatible Engine Models |
|---|---|
| Komatsu | 3D82, 3D84, 4D105, 6D95, 6D108, 6D110, 4D84, 4D95, 6D102, 6D105, 6D114, 6D170 |
| Caterpillar | 3114, 3116, C4, C6, 3064T, S6K, C7, C-9, C13 |
| Isuzu | 3LD1, 4LE1, 4BG1, 4HK1, 6SD1, 6WG1, 4LE2, 4JB1, 6BG1, 6HK1, 6WF1 |
| Yanmar | 4D88E, 4TNE84, 4TNV88, 4TNV94L, 4TNE88, 4TNE94, 4TNV98, 4TNV106 |
| Mitsubishi | 4D34, 4D24, K4M, S3Q2, 6D16, 6D24, S4KT, 6D40 |
| Volvo | D6D, D6E, D9E, D12D, D7D, D7E, D12E, D16D |
1. Turbocharger: Mounted on the exhaust manifold. Example: Caterpillar 320D (C6.6 Engine) uses a turbo to boost air intake.
2. Cylinder Liner: Located in the engine block. Example: Komatsu PC300-7 (6D114) provides a wear-resistant surface for pistons.
3. Fuel Injector: Installed in the cylinder head. Example: Isuzu 4HK1 (Hitachi ZX200-3) delivers high-pressure fuel.
4. Water Pump: Front of the engine. Example: Cummins QSB6.7 (Excavator) circulates coolant to prevent overheating.
5. Piston Ring: Around the piston head. Example: Kubota V2403 (Skid Steer) maintains compression and oil control.
6. Crankshaft: Bottom of the engine block. Example: Yanmar 4TNV98 (Mini Excavator) converts linear motion to rotation.
7. Main Valve: Central hydraulic system. Example: Komatsu PC200-8 controls fluid flow to actuators.
8. Oil Pump: Inside the oil pan area. Example: Caterpillar C9 ensures lubrication to moving parts.
9. Fan Cooling: Engine radiator front. Example: Weichai WP10 (Truck) dissipates engine heat.
10. Pressure Switch: Hydraulic lines. Example: Isuzu 6HK1 monitors system pressure for safety.
Device: Hitachi ZX200 Excavator (6BG1 Engine)
Fault: Unstable idling and sudden flameout when increasing throttle.
Solution: Diagnosed a faulty Hitachi Accelerator Motor 4614911. The internal gear was worn, causing erratic feedback to the ECU. After replacing it with our premium 4614911 replacement and recalibrating the throttle cable, the machine resumed normal operation. Maintenance Tip: Always grease the throttle linkage every 500 hours to reduce motor load.
| Model NO. | Hitachi 4614911 / 4360509 | Application | Excavator Engine Control |
| Certification | ISO9001 / CE Replacement | Condition | Brand New |
| Origin | China (Source Factory) | Capacity | 5000 PCS/Year |
| Payment | T/T, Western Union, MoneyGram | Delivery | DHL, Fedex, UPS, Air/Sea Freight |
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