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Poland
HYDRO CZĘŚCI JAKUBIEC SPÓŁKA JAWNA
Kapitałowa 4
35-213 Rzeszów
Call us:
+48 17 229 37 05
NIP: 8133391713

Solenoid Coils – JCB (12V / 24V)

Electrical control of hydraulics. We offer solenoid coils for transmission (travel), auxiliary hydraulic control, SRS, and fan drive systems. Available in 12V (backhoes) and 24V (excavators). Brands: Azeri Parts, OEM, Parker, and JCB Originals.

Application: JCB 3CX/4CX, JS series excavators, telehandlers, and construction equipment.

12V & 24V Versions
Travel Coils
Azeri Parts & OEM
⚠️ Which diameter and plug? Coils look similar but differ in internal diameter (e.g., 13mm vs 16mm) and connector type. Measure the stem with a caliper and send us a photo of the old coil.
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COIL

Types of Coils in JCB Machines

Coil failure is one of the most common reasons for a machine function "disappearing". Depending on location, coils control various components:

  • Transmission Solenoids: Located on the gearbox. They control Forward/Reverse travel and 4WD engagement.
  • Distributor Coils: Control oil flow to cylinders (e.g., telescope extension, clam shovel, hammer line).
  • Pump and Fan Coils: Regulate main pump flow or radiator fan speed (PWM systems).

How to select a coil? (Azeri Parts vs OEM)

Besides the part number, dimensions are key. Azeri Parts coils are precise replacements that fit perfectly on Husco, Rexroth, or Parker valve stems used in JCB. Before buying, check:

  1. Voltage: 12V or 24V? (Marked on the housing).
  2. Hole Diameter: E.g., 13mm, 16mm, 19mm. A loose coil won't generate a magnetic field; a tight one won't fit.
  3. Connector: Deutsch (gray/black), Junior Timer (rectangular), or flying leads.

💡 Coil is good, but function dead?

If the coil has resistance and magnetizes ("pulls a screwdriver") but the machine doesn't react, the problem might be a stuck mechanical valve (stem). Check:

Frequently Asked Questions (FAQ)

Can I install a 12V coil on a 24V machine?

Absolutely not. A 12V coil connected to a 24V system will burn out immediately. Conversely, a 24V coil in a 12V system won't have the strength to open the valve.

What does the coil color mean?

In JCB machines, color often suggests function or voltage (e.g., blue ones are often for travel/steering), but it's not a rule. Always go by part number and dimensions, not plastic color.

Broken plug on the coil?

Coils work in harsh conditions (water, mud, vibration). We offer high-quality sealed coils. If you have wiring issues, contact us.

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