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Apprezzo l'aiuto da Paul, è prefessional e conosce esattamente che parti ho bisogno. Il mio CAT è ritornato per lavorare senza alcun problema.

—— Raphael

Ha ottenuto l'azionamento finale ed il suo bello penso. Abbiamo farlo montare in nostro escavatore di Hitachi ZX330, le mie macchine andiamo ora lavorare ancora. Molte grazie

—— kevin

La spedizione veloce, le parti arrivate è buona qualità, il nostro motore è riparato e perfettamente sta correndo al potere massimo. Grazie, il dio benedice.

—— Mohammed

Sono ora online in chat

158-8250 1588250 Pilot Valve Excavator Engine Parts Fit For 312C 315C 318C 319C 320C 322C

Grande immagine : 158-8250 1588250 Pilot Valve Excavator Engine Parts Fit For 312C 315C 318C 319C 320C 322C

Dettagli:

Luogo di origine:	Cina
Marca:	OEM
Numero di modello:	3066 3126B

Termini di pagamento e spedizione:

Quantità di ordine minimo:	1 PZ
Prezzo:	122 USD
Imballaggi particolari:	Scatola di legno per parti pesanti, cartone di carta per parti leggere
Tempi di consegna:	3-7 giorni lavorativi
Termini di pagamento:	T/T, D/P, D/A, Western Union, L/C, MoneyGram
Capacità di alimentazione:	100-2000

Contatto

Descrizione di prodotto dettagliata

categoria:	Parti del motore	Numero di parte:	158-8250 1588250
Nome del prodotto:	Valvola pilota	Numero della macchina:	312C 315C 318C 319C 320C 322C 323D L
Applicazione:	Escavatore	Tempi di consegna:	1-3 giorni per la consegna
Imballaggio:	Cartone standard per l'esportazione
Evidenziare:	312C excavator pilot valve , 315C engine replacement parts , 320C compatible pilot valve

158-8250 1588250 Pilot Valve Excavator Engine Parts Fit For 312C 315C 318C 319C 320C 322C

Specifiion

Category	Engine Parts
Name	Pilot Valve
Parts No	158-8250 1588250
Machine Number	312C 315C 318C 319C 320C 322C 323D L
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. Pilot Oil Supply: Low-pressure pilot oil (from the main hydraulic pump’s pilot circuit) enters the valve through the inlet port.
	2. Operator Input: When the operator moves the control lever (e.g., boom lift), the lever mechanical linkage (or electric actuator) shifts the valve spool.
	3. Signal Transmission: Spool movement opens flow paths, directing pilot oil to the corresponding chamber of the high-pressure main control valve.
	4. Main Valve Actuation: The pilot oil pressure pushes the main valve spool, allowing high-pressure hydraulic oil (20–35 MPa / 2,900–5,075 psi) to flow to the boom cylinder – initiating the lifting action.
	5. Neutral Position: When the lever is released, the spring centers the spool, cutting off pilot oil to the main valve and stopping the movement.
Core Functions	1. Precise Movement Control: Translates operator lever input into hydraulic signals to regulate excavator movements (boom, arm, bucket, turntable) – ensures smooth, proportional control (e.g., slow, precise bucket tilting for loading).
	2. Pressure Signal Amplification: Uses low-pressure pilot oil to actuate high-pressure main valves – reduces operator effort (vs. direct manual actuation of main valves).
	3. Fail-Safe Operation: Spring-centered spool prevents unintended movement if the operator releases controls or power is lost – enhances job site safety.
	4. Circuit Protection: Integrated relief valve and surge resistance prevent pilot circuit damage from pressure spikes – extends valve service life.

Compatible models

EXCAVATOR 312C 315C 318C 319C 320C 320C FM 320C L 320D 320D LRR 321C 322C 322C FM 323D L 323D LN 324D 324D L 324D LN 325C 325C FM 325C L 325D 325D L 330C 330C FM 330C L 330C MH 330D L 330D LN
LOGGER 322C
MOBILE HYD POWER UNIT 325C 330C C.ate.rpillar.

More other valve applied to C A T heavey machine

5I7739 VALVE

311, 311B, 311C, 312B, 312C, 312C L, 314C, 318C, 319C, 320 L, 320B, 320C, 320C FM, 320C L, 320D, 320D LRR, 320N, 321C, 323D L, 323D LN

5I7738 VALVE

311, 311B, 311C, 312B, 312C L, 320 L, 320B, 320C, 320C FM, 320N

5I8026 VALVE AS

311, 311B, 311C, 312, 312B, 312C, 312C L, 314C, 318C, 319C, 320 L, 320B, 320C, 320C FM, 320C L, 320D, 320D FM RR, 320D LRR, 320D RR, 320N, 321C, 321D LCR, 323D L, 323D LN

5I8066 VALVE AS-RELIEF

311, 311B, 311C, 311D LRR, 312, 312B, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315D L, 318C, 318D L, 319C, 319D, 319D L, 319D LN, 320 L, 320B, 320C, 320C FM, 320C L, 320D, 320D FM, 3...

5I7643 VALVE

311, 311B, 311C, 312, 312B, 312C, 312C L, 314C, 318C, 319C, 320 L, 320B, 320B U, 320C, 320C FM, 320C L, 320D, 320D LRR, 320N, 321C, 323D L, 323D LN

1318901 VALVE-DUST

311B, 311C, 311D LRR, 312B, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 313D, 313D2, 313D2 LGP, 314C, 314D CR, 314D LCR, 320C, 320C FM, 320C L, 320D FM RR, 320D LRR, 320D RR, 320E, 320E L, 320E LN...

0952489 VALVE

311, 311B, 311C, 312B, 312C, 312C L, 314C, 318C, 319C, 320 L, 320B, 320B FM LL, 320C, 320C FM, 320C L, 320D, 320D LRR, 321C, 323D L, 323D LN, E110, E110B, E120B, E200B, E450

1710031 VALVE GP-RELIEF

312C, 312C L, 315C, 318C, 319C, 320C, 320C FM, 320C L, 320D, 320D FM RR, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 322C, 323D L, 323D LN, 324D, 325C, 325D, 325D L, 330C, 330C L, 330D, 330D L

2128477 VALVE

311C, 312C, 312C L, 314C, 318C, 319C, 320C, 320C FM, 320C L, 320D, 320D LRR, 321C, 323D L, 323D LN

5I7559 VALVE AS

318C, 319C, 320, 320 L, 320B, 320B FM LL, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320N, 321C, 321D LCR, 323D L, 323D LN, 323D SA

7Y4267 VALVE

315D L, 316E L, 318C, 318D L, 318E L, 319C, 319D, 319D L, 319D LN, 320 L, 320B, 320B L, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC

Directory listing

Pos.	Part No	Qty	Parts name	Comments
1	096-6166	[2]	WASHER-HARD (4.5X9X1-MM THK)
2	095-0728 M	[2]	SCREW-MACHINE (M4X0.7X12-MM)
3	8T-4121	[12]	WASHER-HARD (11X21X2.5-MM THK)
4	8T-4136 M	[4]	BOLT (M10X1.5X25-MM)
5	8T-4191 M	[8]	BOLT (M10X1.5X16-MM)
6	142-5546	[2]	KNOB
7	117-6356	[2]	STEP AS
8	122-9610	[2]	STEP
9	170-9499	[1]	LEVER AS (LH)
10	170-9498	[1]	LEVER AS (RH)
11	122-9608	[1]	PEDAL-RUBBER (RH)
12	117-6350	[1]	PEDAL AS (RH)
13	122-9609	[1]	PEDAL-RUBBER (LH)
14	117-6349	[1]	PEDAL AS (LH)
	M		METRIC PART

158-8250 1588250 Pilot Valve Excavator Engine Parts Fit For 312C 315C 318C 319C 320C 322C 0

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 and Shipping

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 .

Prodotto Tag:

Persona di contatto: Mr. Paul

Telefono: 0086-15920526889

Fax: +86-20-89855265

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