| Category |
Pressure Switch Block |
| Name |
Pressure Sensor |
| Parts No |
7861-93-1840 7861-93-1880 |
| Machine Number |
PC118MR PC130 PC138 PC138US PC160 PC180 PC190 |
| Lead time |
1-3 DAYS |
| Quality |
Brand new, OEM quality |
| MOQ |
1 PCS |
| Means of transport |
By sea/air, DHL FEDEX UPS TNT |
| Packing |
As request or standard packing |
- Key functions & working principle
| Working Principle |
1. Pressure from the hydraulic/fuel system acts on the sensor’s diaphragm, causing it to deform slightly. |
| 2. The piezoresistive strain gauge on the diaphragm changes resistance proportionally to the deformation. |
| 3. An internal signal conditioning circuit converts the resistance change into a calibrated analog (0–5V/4–20mA) or digital (CAN bus) signal. |
| 4. The ECU receives the signal, interprets the pressure data, and adjusts engine/hydraulic operations (e.g., fuel injection timing, hydraulic valve opening) to maintain optimal performance. |
| 5. If pressure exceeds safe limits (e.g., hydraulic overload), the ECU triggers a warning light on the operator’s dashboard and may limit machine power to prevent damage. |
| Core Functions |
1. Real-Time Pressure Monitoring: Tracks hydraulic/fuel system pressure to ensure it stays within safe operating ranges |
| 2. ECU Feedback: Provides precise pressure data for engine/hydraulic system optimization – improves fuel efficiency and reduces component wear |
| 3. Fault Detection: Alerts operators to abnormal pressure conditions (e.g., low hydraulic pressure, fuel rail pressure spikes) via dashboard warnings |
| 4. Overload Protection: Enables the ECU to limit power or shut down non-essential systems during pressure surges, preventing damage to pumps, valves, and cylinders |
BULLDOZERS D31EX D31PX D37EX D37PX D39EX D39PX D51EX/PX D61EX D61EXI D61PX D61PXI
DUMP TRUCKS HM300 HM400
EXCAVATORS HB205 HB215 PC118MR PC130 PC138 PC138US PC160 PC180 PC190 PC200 PC2000 PC200LL PC210 PC220 PC220LL PC228 PC228US PC230NHD PC240 PC270 PC27MR PC290 PC300 PC300HD PC300LL PC308 PC30MR PC340 PC350 PC350HD PC350LL PC35MR PC360 PC390 PC390LL PC400 PC450 PC45MR PC490 PC550 PC55MR PC70 PC78US PC78UU PC88MR PW118MR PW148 PW160 PW180 PW200 PW220 PW98MR
WHEEL LOADERS WA270 WA320 Komatsu
- More other sensor applied to KOMATSU heavey machine
| 20Y-979-6191 SENSOR |
| BOOM,, BOTTOM, CARRIER, D155AX, D475A, D475ASD, D65EX, D65PX, HB205, HB215, HM300, HM400, KOMTRAX, PC1250, PC1250SP, PC138, PC138US, PC200, PC210, PC220, PC228, PC228US, PC240, PC290, PC300, PC360, PC... |
| |
| 154-06-31230 SENSOR,ENGINE OIL PRESSURE |
| D85A, D85E, D85P |
| |
| 21T-06-64370 SENSOR ASS'Y |
| PC1800 |
| |
| 6560-61-7101 SENSOR |
| SA6D170E, SAA6D170E |
| |
| 7861-92-3410 SENSOR,H/D OIL TEMPERATURE |
| D155AX, GD825A |
| |
| 237-06-15120 SENSOR,ENGINE WATER TEMPERATURE |
| CS360, CS360SD, GC380, GC380F, GD200A, GD22AC, GD22H, GD28AC, GD300A, GD305A, GD355A, GD405A, GD500R, GD505A, GD510R, GD511A, GD521A, GD611A, GD621A, GD621R, GD623A, GD661A, GD663A, GD705A, GD705R, GS... |
| |
| 561-88-66141 SENSOR,WHEEL SPEED |
| HD325, HD405, HD465, HD605, HD785, HD985 |
| |
| DY06022-20205 SENSOR,BATTERY |
| EG300BS, EG400BS |
| |
| DY06055-03020 SENSOR,FUEL |
| EG125BS, EG150BS, EG300BS, EG400BS |
| |
| 21U-70-22900 SENSOR ASS'Y,ARM |
| PC28UU |
| Pos. |
Part No |
Qty |
Parts name |
Comments |
| 1 |
20Y-62-16630 |
[14] |
Nipple Komatsu |
0.06 kg. |
| |
|
|
["SN: 60001-UP"] |
|
| 2. |
201-60-11390 |
[1] |
O-ring Komatsu |
0.01 kg. |
| |
|
|
["SN: 60001-UP"] |
|
| 3. |
20Y-62-19560 |
[1] |
O-ring Komatsu |
0.01 kg. |
| |
|
|
["SN: 60001-UP"] |
|
| 4 |
07002-11423 |
[14] |
O-ring Komatsu China |
0.001 kg. |
| |
|
|
["SN: 60001-UP"] analogs:["0700201423"] |
|
| 4 |
20Y-60-22201 |
[2] |
Valve Assembly Komatsu |
0.21 kg. |
| |
|
|
["SN: 60001-UP"] |
|
| 5. |
20Y-60-11750 |
[1] |
Poppet Komatsu |
0.01 kg. |
| |
|
|
["SN: 60001-UP"] |
|
| 6. |
20Y-60-22350 |
[1] |
Body Komatsu China |
|
| |
|
|
["SN: 60001-UP"] |
|
| 7. |
20Y-62-22410 |
[1] |
Nipple Komatsu China |
|
| |
|
|
["SN: 60001-UP"] |
|
| 10. |
07002-01423 |
[1] |
O-ring Komatsu China |
0.001 kg. |
| |
|
|
["SN: 60001-UP"] analogs:["0700211423"] |
|
| 12 |
206-06-61130 |
[6] |
Switch, Pressure Komatsu OEM |
0.04 kg. |
| |
|
|
["SN: 60001-UP"] analogs:["2060661330"] |
|
| 13 |
7861-93-1840 |
[2] |
Sensor Komatsu |
0.06 kg. |
| |
|
|
["SN: 60001-UP"] |
|
| 14. |
07000-12011 |
[1] |
O-ring Komatsu |
0.001 kg. |
| |
|
|
["SN: 60001-UP"] analogs:["YM24315000110", "0700002011"] |
|
| 15 |
207-62-74980 |
[1] |
Block Komatsu China |
|
| |
|
|
["SN: 60001-UP"] |
|
| 16 |
207-62-74622 |
[1] |
Bracket Komatsu China |
|
| |
|
|
["SN: 61290-UP"] |
|
| 16 |
207-62-74621 |
[1] |
Bracket Komatsu China |
|
| |
|
|
["SN: 60001-61289", "SCC: A2"] analogs:["2076274620"] |
|
| 17 |
01010-81245 |
[2] |
Bolt Komatsu |
0.056 kg. |
| |
|
|
["SN: 61290-UP"] analogs:["0101051245", "801015574"] |
|
| |
01010-81235 |
[1] |
Bolt Komatsu |
0.048 kg. |
| |
|
|
["SN: 60001-61289"] analogs:["0101051235", "01010E1235", "801015136"] |$19. |
|
| |
01643-31232 |
[1] |
Washer Komatsu |
0.027 kg. |
| |
|
|
["SN: 60001-61289"] analogs:["0164371232", "0164381232", "802170003", "R0164331232", "0614331232"] |$20. |
|
| 19 |
08034-20536 |
[1] |
Band Komatsu |
0.003 kg. |
| |
|
|
["SN: 60001-UP"] |
|
| 20 |
01010-81260 |
[2] |
Bolt Komatsu China |
0.069 kg. |
| |
|
|
["SN: 60001-UP"] analogs:["0101051260"] |
|
- We could supply the following spare parts
1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.
2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.
3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.
4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.
5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.
6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.
Packing Details :
inner packing : plastic film for wrapping
external packing : wooden
Shipping :
within 3 days after received the payment , by air or by express or by sea on the basis of the
quantity and emergency circumstances.
1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,
2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.
3. By Sea: Delivery from the Huangpu port .
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