If your machine is experiencing inconsistent engine speeds or failing to respond to throttle commands, the 421-06-11711 (also searched as 4210611711) stepping motor is the critical component you need to check. As a specialized supplier of heavy equipment engine parts, we provide OEM-standard replacements that ensure your WA470-3 loader returns to peak operational efficiency.
| Model NO. | WA470-3 / WA450-3 |
| Product Name | Throttle Motor / Governor Motor |
| Part Number | 421-06-11711 (Alternative: 4210611711) |
| Condition | Brand New, OEM Standard Replacement |
| MOQ | 1 Piece |
| Application | Engine rebuild, governor control system maintenance |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery | Express (DHL, Fedex, UPS, EMS), Air or Sea |
| Key Factor | Our Replacement Standard | Common Market Grade |
|---|---|---|
| Internal Gear Material | High-strength hardened steel for durability | Soft alloy or plastic gears |
| Core Chip | Imported precision stepping controller | Basic domestic circuit boards |
| Weather Resistance | Sealed casing against dust and moisture | Poorly sealed, prone to short circuits |
| Response Time | Millisecond precision for instant throttle response | Laggy or inconsistent feedback |
| Service Life | Tested for over 50,000 cycles | Fails shortly after warranty |
| Warranty | Comprehensive quality assurance support | Limited or no technical support |
Q1: Why does my loader engine fail to reach high RPM even when the pedal is pressed?
A: This is often caused by a faulty 421-06-11711 throttle motor. If the internal gears are worn or the electrical signal is weak, the governor cannot pull the fuel rack. Replacing the unit usually solves the problem.
Q2: My machine shows a fault code related to the stepping motor. Can I repair it?
A: While some clean the connectors, most internal failures in the 421-06-11711 are electronic. A new OEM standard replacement is the most cost-effective way to avoid expensive downtime.
Why Choose This Throttle Motor?
Our units feature an OEM-standard tri-metal structure and are trusted by repair shops and equipment fleets globally for their reliability in harsh construction environments.
Not sure how this issue affects your equipment?
Our team helps operators:
✔ Identify potential risks during maintenance
✔ Recommend suitable replacement parts if needed
✔ Support both inspection advice and parts supply
Our company specializes in full engine assemblies and spare parts for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Key products include: Cylinder Liners, Pistons, Piston Rings, Main Bearings, Con-rod Bearings, Thrust Washers, Overhaul Gasket Kits, Fuel Pumps, Injectors, Crankshafts, Turbochargers, Water Pumps, Oil Pumps, Cylinder Blocks, Cylinder Heads, and Connecting Rods.
Long-tail keywords: Komatsu WA470-3 engine overhaul parts, heavy duty diesel engine rebuild kit, excavator fuel system components, 421-06-11711 governor assembly, aftermarket loader engine parts, diesel engine water pump replacement, crankshaft for Cummins 6CT, piston ring set for Isuzu 4HK1, turbocharger for Caterpillar 320D, fuel injector nozzle for Yanmar engine, cylinder head assembly for Kubota V2203, Weichai engine gasket kit, main bearing set for heavy machinery, overhaul kit for construction equipment, hydraulic pump parts for Komatsu, engine oil pump replacement, high pressure fuel pump, connecting rod for diesel engine, excavator engine maintenance parts, high quality aftermarket engine components.
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