21Q6-20810 Engine Speed Adjustment Knob For Excavator Cab
Integrated plastic mounting support ensures convenient and firm installation.It can directly replace the original throttle knob with signal jitter and adjustment failure.
Product Details
| Specification |
Information |
| Product Name |
Excavator Throttle Knob Potentiometer |
| OEM Reference No. |
21Q6-20810 |
| Fitment |
R9 Series Excavator Cab Engine Speed Control System |
| Brand |
ZVEZDA |
| Condition |
100% Brand New |
| Origin |
Guangdong, China |
| Type |
Excavator Electrical Replacement Component |
| Connector |
4-Wire Double Plug Assembly |
| Mounting Structure |
Integrated Plastic Fixed Bracket |
| Shipping Time |
Dispatched within 1–7 working days post payment |
| Package |
Standard Neutral Carton / Custom Branded Packing |




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Frequently Asked Questions
| No. |
Question |
Answer |
| Q1 |
What connector structure does this throttle knob adopt? |
This throttle potentiometer comes with 4-wire double plug assembly to match the original wiring harness. |
| Q2 |
Do we need to modify the wiring during installation? |
No wiring modification is needed, connectors and installation dimensions comply with OEM standards. |
| Q3 |
What kind of bracket is matched with this potentiometer? |
It is equipped with integrated plastic bracket for installing on the operation panel. |
| Q4 |
Can this knob solve unstable engine speed adjustment? |
It can effectively fix speed jitter caused by aging and damage of original throttle potentiometer. |
| Q5 |
Are internal components strictly tested before shipment? |
Each finished product passes signal detection and continuous rotation aging test. |
| Q6 |
Can customized packaging service be arranged for bulk orders? |
Standard neutral packing is used, branded customized packing can be offered for large quantity. |
| Q7 |
Is single-piece sample acceptable for pre-order quality inspection? |
Yes, single-piece sample order is supported, we will arrange shipment after payment confirmation. |