Bottom Swivel Pin 70mm x 140mm suitable for JCB 3CX 4CX
GX-AFTER

Bottom Swivel Pin 70mm x 140mm suitable for JCB 3CX 4CX

Catalog number:SKX976578A Nr OEM:911/40048 Manufacturer:GX-AFTER
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LOWER KINGPOST PIVOT PIN SUITABLE FOR JCB 3CX, 4CX - 911/40048

Technical Specification and Compatibility

A high-quality lower kingpost pivot pin, made of high-strength, surface-hardened steel. It is a key component of the joint connecting the kingpost to the sideshift carriage. Its function is to bear the enormous forces generated during backhoe operation and to ensure smooth slewing. Precision manufacturing and proper hardness guarantee maximum service life.

Part number: 911/40048
Length (mm): 140
Diameter (mm): 70
Material: Hardened Steel

Aftermarket quality product – an intelligent choice combining excellent quality with an attractive price.

Application in machines

Brand (Machine Type) Model
JCB (Backhoe Loaders) 3CX, 4CX

The list above is for reference. Before purchasing, we recommend verifying the dimensions on your machine.

⚠️ Safety Warning

Replacing kingpost pins requires dismantling heavy backhoe arm components. Always secure the arm from falling using the service lock and certified axle stands. Never rely solely on the machine's hydraulics. Use safety glasses and gloves.

Service Recommendation: Ensure Maximum Lifespan

For a complete joint refurbishment, always replace pins in a set with new bushings and seals. Regular greasing of the joints with high-quality HYPTRON grease with molybdenum disulfide (MoS2) drastically extends the life of the pins and bushings.

Part's Role in the Machine and Failure Diagnostics

The pin is the pivot axis for the kingpost. A worn or cracked pin leads to play, which damages the bores in the kingpost and carriage (a "sloppy" joint), which in turn requires a very expensive re-boring repair.

  • › Excessive play (clunking) on the kingpost.
  • › Loss of precision during digging, a "wobbly" bucket.
  • › Loud squeaking or grinding from the joints, even after greasing.
  • › Visible displacement or cracking of the old pin.

Peace of Mind Guarantee: Why Choose Our Offer?

Ignoring play leads to wear in the kingpost and carriage bores.

The cost of re-boring worn-out holes is many times greater than the cost of a preventative replacement of pins and bushings. Protect your machine from expensive repairs – order a complete GX-AFTER set and restore the factory rigidity to the joints.

📞 Can't find the part you're looking for?

No problem. Our website shows only a few thousand of the over 60,000 parts we have in stock. Contact us – we probably have what you need on the shelf!

🔧 Expert's Guide: Key Installation Tips

  1. Replace as a set: Always replace the pin together with its bushings and seals to ensure a tight fit and long service life.
  2. Check the bores: Before installation, thoroughly clean and inspect the bores in the kingpost and carriage. If they are "sloppy" (oval), they must be re-bored.
  3. Use appropriate tools: Use a copper or brass hammer to drive pins in and out to avoid damaging the pin face.
  4. Grease generously: Before assembly, lubricate the pin and bushings. After assembly, pump in a large amount of fresh grease until it purges out.

Frequently Asked Questions (FAQ)

1. I have play on the backhoe arm. Will replacing this pin be enough?

Play in the backhoe can come from many places. This pin eliminates play at the lower kingpost mounting to the carriage. You should also check the upper mounting, bushings, slew ram pins, and wear pads. A comprehensive repair requires assessing and replacing all worn components.

2. How can I check if a pin is worn?

A worn pin often has a visible "step" or an oval cross-section where it has been working in the bushing. You can measure it with a caliper in several places to check if its diameter is uniform along its working length.

3. What happens if I keep working with a worn pin?

Prolonged operation with a loose pin causes the bores in the kingpost and carriage to wear out. The holes become oval, and their repair is very expensive and requires specialized machining (a mobile line boring machine). In extreme cases, the pin can break, leading to a dangerous failure.

Key Advantages

🛡️

Working Precision

Eliminates play and restores arm rigidity.

🎯

Machine Protection

Protects expensive components from wear.

📦

High Durability

Hardened steel resistant to abrasion and cracking.

Question mark

Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.

SKX976578A
911/40048
5.71 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
BACKHOE LOADER
OEM NUMBERS
911/40048
OUTER DIAMETER (MM)
70
HEIGHT (MM)
140
PIN WITH COLLAR
YES

Specific References

MPN
911/40048
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Bottom Swivel Pin 70mm x 140mm suitable for JCB 3CX 4CX

Catalog number: SKX976578A
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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

97.79 zł

net price
79,50 zł
Available in large quantity Temporarily unavailable
79,50 zł
net price

97.79 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 8 points, it gives you 3.20 zł
  • Lowest price from 30 days before the discount: 97.79 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    BACKHOE LOADER
    OEM NUMBERS
    911/40048
    OUTER DIAMETER (MM)
    70
    HEIGHT (MM)
    140
    PIN WITH COLLAR
    YES

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    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
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    Fax
    +48 17 864 31 20