Overload valve MRV - front valve suitable for JCB 3CX 4CX
GX-AFTER

Overload valve MRV - front valve suitable for JCB 3CX 4CX

Catalog number:920/01800A Nr OEM:920/01800 Manufacturer:GX-AFTER
Add a review

MRV MAIN RELIEF VALVE (FRONT BLOCK) SUITABLE FOR JCB - 920/01800

Specification & Compatibility

Product: Main Relief Valve (MRV)
Producer: GX-AFTER
Pressure Setting (approx.): 3300 PSI (227 Bar)
Material: High-grade hardened steel
Application (Front Loader Valve Block):
JCB Backhoe Loaders

3CX, 4CX

Part Number: 920/01800
Part Type: High-quality replacement

Essential for Installation

Valve O-ring Kit (crucial for ensuring a proper seal)
REDX Hydraulic Oil Filter
HYPTRON Hydraulic Oil

What does this part do and what are the symptoms of wear?

The Main Relief Valve (MRV) is the most important safety device in the loader's hydraulic system. It protects the pump and the entire system from damage due to a sudden pressure spike. If your machine is experiencing a loss of power across all loader functions, the hydraulics are very slow, or the oil is overheating, these are classic symptoms of a faulty MRV. A valve stuck open causes a constant loss of pressure, while one stuck closed risks bursting hoses or destroying the pump.

Parameters That Guarantee Reliability

⚡

Precise Pressure Setting

Reliable system protection

💪

High Durability

Resistant to pressure and vibrations

🎯

Perfect Fit

"Plug & play" installation

Why Choose a GX-AFTER Valve?

✔Precise Manufacturing

The accuracy and quality of materials guarantee that the valve will open at the set pressure, ensuring long and trouble-free use.

✔Compatibility with Original Parts

The valve is fully adapted to work with original JCB valve blocks, ensuring a consistent repair.

✔Savings Without Compromise

The GX-AFTER brand is a proven and safe alternative that offers quality comparable to original parts at a much better price.

Important Fitting / Service Tips

1.Relieve Hydraulic Pressure

Before loosening any hydraulic component, you must relieve the pressure in the system by moving all controls several times with the engine off.

2.Maintain Absolute Cleanliness

Before removing the old valve, thoroughly clean the area around it. Even the smallest contaminant entering the valve block can damage other valves or the pump.

3.Always Replace O-rings

Always install the valve with a new set of O-rings to ensure a 100% seal. Reusing old seals will likely cause a leak.

4.Do Not Adjust Factory Settings

The valve is factory-calibrated to the correct pressure. You should not change its settings yourself without specialized pressure gauges.

Frequently Asked Questions (FAQ)

Question: All my loader hydraulics are weak. Is this valve the cause?

Answer: Yes, this is the primary suspect. If all loader functions (lift, tilt, etc.) are weak, the most common cause is an MRV stuck in the open position. Other possibilities include a failed hydraulic pump or a clogged filter.

Question: What's the difference between this MRV and the ARVs on the sections?

Answer: The MRV (Main Relief Valve) is the main safety valve that protects the entire system and pump. ARVs (Auxiliary Relief Valves) protect individual sections of the valve block (e.g., just the bucket tilt function).

Question: Can I "turn up" the pressure on this valve myself to increase power?

Answer: This is extremely not recommended and dangerous. Increasing the pressure above factory standards leads to bursting hoses, damaged cylinders, and excessive load on the hydraulic pump, resulting in very expensive failures.

Question mark

If you are unsure whether the selected product is suitable for your machine, contact us and we will help you choose the right part and provide practical advice in minutes.

920/01800A
920/01800
0.31 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
BACKHOE LOADER
OEM NUMBERS
920/01800

Specific References

MPN
920/01800
Łączna ocena:
0,0
Kupiłeś ten produkt? Napisz recenzję dla innych!
Be the first to write your review !
Opinion:
(0 opinions)

Write a review

Overload valve MRV - front valve suitable for JCB 3CX 4CX

Catalog number: 920/01800A
Title for your review*
Your review*
Your name*
Your email*

Manufacturer

  • Serwis Kop Sp. z o.o. Sp. K.
  • Podkarpacka 57a
  • 35-082 Rzeszów
  • Poland
  • [email protected]
  • +48178643100

Responsible person

  • Serwis Kop Sp. z o.o. Sp. K.
  • Podkarpacka 57A
  • 35-082 Rzeszów
  • Poland
  • [email protected]
  • +48178643100
gross price

380.07 zł

net price
309,00 zł
Available in large quantity Temporarily unavailable
309,00 zł
net price

380.07 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 31 points, it gives you 12.40 zł
  • Lowest price from 30 days before the discount: 380.07 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    BACKHOE LOADER
    OEM NUMBERS
    920/01800

    See also similar products

    ARV Overload Valve 4500 PSI suitable for JCB 3CX, 4CX
    KAT: 25/222416A

    ARV Overload Valve 4500 PSI suitable for JCB 3CX, 4CX

    Available in large quantity Temporarily unavailable
    Price Gross price 350.55 zł
  • You will receive 29 points, it gives you 11.60 zł
  • Nie możesz dodać więcej produktów
    ARV Overload Valve 3800 PSI suitable JCB 3CX 4CX
    KAT: SKX1010999A

    ARV Overload Valve 3800 PSI suitable JCB 3CX 4CX

    Available in large quantity Temporarily unavailable
    Price Gross price 289.05 zł
  • You will receive 24 points, it gives you 9.60 zł
  • Nie możesz dodać więcej produktów
    3600 PSI ARV Overload Valve Fits JCB 3CX 4CX
    KAT: SKX1011002A

    3600 PSI ARV Overload Valve Fits JCB 3CX 4CX

    Available in large quantity Temporarily unavailable
    Price Gross price 367.77 zł
  • You will receive 30 points, it gives you 12.00 zł
  • Nie możesz dodać więcej produktów
    MRV 3300 PSI Overload Valve Fit for JCB 3CX 4CX
    KAT: SKX975530A

    MRV 3300 PSI Overload Valve Fit for JCB 3CX 4CX

    Available in large quantity Temporarily unavailable
    Price Gross price 141.45 zł
  • You will receive 12 points, it gives you 4.80 zł
  • Nie możesz dodać więcej produktów
    MRV overload valve suitable for JCB 3CX 4CX - 920/01680
    KAT: 920/01680A

    MRV overload valve suitable for JCB 3CX 4CX

    Temporarily unavailable
    Price Gross price 448.95 zł
  • You will receive 37 points, it gives you 14.80 zł
    MRV 3300 PSI main pressure control valve
    KAT: SKX983245A1

    MRV 3300 PSI main pressure control valve

    Available in large quantity Temporarily unavailable
    Price Gross price 255.23 zł
  • You will receive 21 points, it gives you 8.40 zł
  • Nie możesz dodać więcej produktów
    Valve 3 spool loader with foat & reset suitable for JCB 3CX 4CX
    KAT: 25/222579C

    Valve 3 spool loader with foat & reset suitable for JCB 3CX 4CX

    Temporarily unavailable
    Price Gross price 11,314.77 zł
  • You will receive 920 points, it gives you 368.00 zł

    WE OFFER PRODUCTS OF THE BEST BRANDS

    SERWIS KOP Sp. z o.o. Sp.k.
    ul. Podkarpacka 57A, 35-082 Rzeszów
    NIP: 813-352-97-49 REGON: 180286726

    Opening hours
    Telephone support - Monday - Friday (8:00 AM – 5:00 PM)
    Order pick-up - Monday - Friday (8:00 AM – 4:30 PM)

    Email



    Gadu-Gadu communicator
    GG: 4185846 - Daniel
    Phone
    +48 17 864 31 00
    +48 17 864 00 24
    +48 17 864 25 96

    Mobile phone
    +48 607-700-547
    +48 695-944-818
    +48 691-330-531
    +48 690-906-751

    Fax
    +48 17 864 31 20