21W-06-21712 Throttle Controller is a replacement throttle controller for Komatsu excavators, including PC60-7, PC70-7, PC75UU-3 and other listed models. The engine throttle controller manages the engine throttle so engine speed follows the setting of the operator dial. It is supplied by LIONKITS as new with a 3-month warranty.
21W-06-21712 Throttle Controller Specifications
- Product Type: Throttle Controller
- Part Number: 21W-06-21712
- Compatible Brand: Komatsu
- Machine Type: Excavator
- Condition: New
- Warranty: 3 months
- Brand: LIONKITS
- Country of Origin: China
Komatsu Models Compatible with the 21W-06-21712 Throttle Controller
- Komatsu PC60-7 PC70-7 PC75UU-3 PC78US-5
Your model is not listed? Contact LIONKITS via live chat or email with your machine model and nameplate photo, and we will confirm compatibility.
What Does an Engine Throttle Controller Do?
The engine throttle controller manages the engine throttle so engine speed follows the setting of the operator dial. It works with the engine control motor and the machine controller, so a failing controller can leave the engine at a fixed speed or make the speed erratic.
Signs the Part Needs Replacing
- Engine speed does not change with the dial: turning the dial has no effect on rpm.
- Engine held at one speed: the engine idles or runs at a fixed rpm regardless of the setting.
- Erratic or hunting speed: unstable throttle control makes rpm surge.
- Throttle fault codes: the machine reports a throttle or engine speed control fault.
These symptoms overlap with a faulty engine control motor, wiring problems or a worn injection pump linkage, so check the whole throttle system before replacing the part.
How to Order and Install the 21W-06-21712 Throttle Controller
- Confirm your machine model, engine model and the part number on your existing part before ordering.
- Send a photo of the old part or the nameplate if you are not sure; LIONKITS will confirm fitment for you.
- Check the wiring harness, connectors and the throttle dial before replacing the controller.
- Disconnect the battery before removing or fitting electronic parts and keep the connectors clean and dry.
- After installation test the full speed range from low idle to full speed and confirm no fault codes remain.
Shipping, Payment and Support
- Preparation time: 2-3 days
- Delivery time: 3-7 days
- Shipping methods: DHL, FedEx, UPS, TNT, USPS EMS
- Packing: Standard packing for export
- Payment methods: Credit Card, PayPal
- Order tracking: A tracking number with a tracking link is sent by email once the order ships.
Frequently Asked Questions
What is the 21W-06-21712 Throttle Controller?
The 21W-06-21712 Throttle Controller is a replacement throttle controller for Komatsu excavators, supplied as new under part number 21W-06-21712.
Which Komatsu models does the 21W-06-21712 Throttle Controller fit?
It is listed for PC60-7, PC70-7, PC75UU-3. If you are unsure, send your machine nameplate to LIONKITS for confirmation.
How do I know an engine throttle controller has failed?
Typical signs are an engine that ignores the throttle dial, a fixed engine speed, erratic rpm and throttle fault codes.
What are the warranty and delivery terms for the 21W-06-21712 Throttle Controller?
Warranty: 3 months. Typically, orders are prepared in 2-3 days and delivery takes 3-7 days. Shipping by DHL, FedEx, UPS, TNT, USPS EMS.
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