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Hyundai R140W-7 Wheeled Excavator Accelerator Pedal Assembly 31N5-20020
Located beneath the operator's feet within the excavator cab, this component is part of the hydraulic control system (pilot control valve assembly). It typically serves as the core throttling element for controlling the travel speed of wheeled excavators (acting as the accelerator pedal) or for remotely regulating pilot hydraulic flow.
Hyundai Excavator Pilot Foot Valve System Overhaul Replacement Parts List (BOM)
| No. | Hyundai Genuine Part No. | Part Name (EN) | Qty | Unit | Component Category / Replacement Strategy | Remarks |
|---|---|---|---|---|---|---|
| 1 | 31N5-20020 | RCV Pedal Assy / Foot Valve | 1 | Pc | Core Component / Replace if leaking internally, seized, or spool is worn | Main Assembly. High-density ductile iron base. Controls wheel excavator travel speed and proportional pilot flow. |
| 2 | XKAY-00110 (Ref) | Pedal Rubber Bellows / Dust Boot | 1 | Pc | Wear Part / Replace if torn, hardened, or cracked | Blocks cabin mud, debris, and car-washing wastewater from entering the spools, protecting the plungers from abrasive wear. |
| 3 | XKAY-00080 (Ref) | Valve Spool / Plunger | 2 | Pcs | Consumable / Replace if worn out, causing low pressure or slow travel speed | Precision matched pair (one for forward, one for reverse). Excessive wear leads to weak travel power under high load. |
| 4 | XKAY-00082 (Ref) | Return Spring Kit | 2 | Sets | Consumable / Replace if spring fatigue occurs or pedal fails to return | Features dual-layer nested inner and outer helical springs to deliver a linear and predictable progressive pedal feel. |
| 5 | XKAY-00055 (Ref) | Rod Seal & O-Ring Kit | 1 | Set | Wear Part / Must be 100% replaced during valve overhaul | Made of Viton (FKM). Prevents high-pressure pilot hydraulic oil from seeping upwards into the operator's cabin. |
| 6 | 31N5-20080 (Ref) | Pilot Pressure Switch | 1-2 | Pcs | Extension Part / Replace if dashboard errors or auto-throttle fails | Mounted closely underneath the valve lines. Converts hydraulic stepping pressure into electrical signals for the MCU. |
| 7 | - | Pilot Hydraulic Hose Fittings | 4 | Pcs | Condition-Based / Inspect thread cross-stripping | Inspect hex threads for stripping or electrochemical oxidation; replace as a preventative measure. |
DETAILS
| DESCRIPTION | Accelerator Pedal Assembly | PART NUMBER | 31N5-20020 |
| WEIGHT | 3kg | VOLUME | 330 mm × 180 mm × 120 mm |
| TRUCK MOLDE | Hyundai | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | CABIN |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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