Rear arm bush - tip suitable for JCB 3CX 4CX / MINI
CORESPEX

Rear arm bush - tip suitable for JCB 3CX 4CX / MINI

Catalog number:SKX654681CX1 Nr OEM:809/00176 Manufacturer:CORESPEX
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STEEL DIPPER/LINKAGE BUSH SUITABLE FOR JCB 3CX, 4CX - 809/00176

Technical Specification and Compatibility

A high-quality slide bush, made of hardened steel. It is a key component of the backhoe arm joints, fitted in the end of the dipper arm and in the bucket linkage ("dog bone"). Its function is to provide smooth rotational movement for the pin and to bear the enormous forces generated during digging, minimizing friction and protecting more expensive components (the ram eye, the arm) from wear.

Part number: 809/00176
Alternative part numbers: 809/00129
Manufacturer: CORESPEX
Height (mm): 47
Inner Diameter (mm): 44.6
Outer Diameter (mm): 55.05
Material: Hardened Steel

A CORESPEX brand product – premium quality replacements that guarantee long life and reliability, even when working in heavy-duty conditions.

Have a worn bore?

We also stock this bush in two oversize repair sizes:
SKX654681CX2 - Outer Diameter: 55.5 mm
SKX654681CX3 - Outer Diameter: 60.0 mm

Application in machines

Brand (Machine Type) Model
JCB (Backhoe Loaders) 2DX, 3CX, 4CX
JCB (Mini Excavators) 8040, 8045, 8050, 8052, 8055, 8056, 8060, 8065, 8080

The list above is for reference. We recommend verifying the dimensions on your machine before purchasing.

⚠️ Safety Warning

Replacing backhoe arm bushings requires the arm to be immobilized and secured. Always use 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 comprehensive and durable repair, always replace bushings in a set with new pins and seals. Regular greasing of the joints with high-quality HYPTRON grease containing molybdenum disulfide (MoS2) drastically extends the life of the bushings.

Part's Role in the Machine and Failure Diagnostics

Bushings are sacrificial components designed to wear out to protect much more expensive parts like the arm or cylinders. Ignoring worn bushings leads to play, which in turn damages the pin bores (causing them to become oval), ultimately requiring a very expensive re-boring repair.

Replace the bushings if you notice:

  • Excessive play (clunking) on the backhoe arm pins.
  • Loss of precision during digging, a "wobbly" bucket.
  • Loud squeaking or grinding from the joints, even after greasing.
  • A visible crack or displacement of the old bush.

Peace of Mind Guarantee: Why Choose Our Offer?

Ignoring play on the pins leads to irreversible damage to the bores in the ram and arm, forcing costly re-boring repairs.

A repair performed using a complete set of CORESPEX pins and bushings is the cheapest way to avoid these problems. Secure your machine and restore its factory precision – order a complete set today.

Expert's Guide: Key Installation Tips

  1. Check the bores: Before pressing in new bushings, thoroughly clean and inspect the bores in the arm or ram. If they are worn oval, they need to be re-bored or an oversize bush used.
  2. Use a press: Use a hydraulic press with appropriate sleeves to install the bushings. Hammering them in can cause damage.
  3. Align grease channels: If the bush has grease holes or channels, make sure they align with the grease nipple after installation.
  4. Grease generously: After installation, pump in a large amount of fresh grease until it purges out, removing any contaminants from the assembly process.

Frequently Asked Questions (FAQ)

1. I have a worn bore in my dipper arm. Do I have to get it re-bored?

Not necessarily. If the wear is not extreme, you can drill the bore out to one of the two oversize dimensions and fit a dedicated repair bush (SKX654681CX2 or SKX654681CX3). This is a much faster and cheaper solution than calling out a mobile line boring service.

2. What is the difference between a steel and a bronze/brass bush?

Hardened steel bushings are used in joints where there is very high surface pressure and maximum resistance to deformation is required. Bronze bushings have better sliding properties and are more resistant to seizure in case of a temporary lack of lubrication. The choice of material depends on the specifics of the given joint.

3. I have play on the pin, but the old bush looks okay. Do I have to replace it?

Yes. Even if the bush is not cracked, the play indicates that its internal diameter has worn. Installing a new, tight pin in an old, worn bush will not eliminate the play and will lead to rapid wear of the pin. Both components should always be replaced at the same time.

Key Advantages

🛡️

Working Precision

Eliminates play and restores arm rigidity.

🎯

Machine Protection

Protects expensive components from wear.

📦

High Durability

Hardened steel resistant to abrasion.

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.

SKX654681CX1
809/00176
0.22 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
BACKHOE LOADER
MINIEXCAVATOR
OEM NUMBERS
809/00176 / 809/00129
MATERIAL
STEEL
OUTER DIAMETER (MM)
55,05
INNER DIAMETER (MM)
44,6
HEIGHT (MM)
47
BUSH WITH COLLAR
NO

Specific References

MPN
809/00176
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Rear arm bush - tip suitable for JCB 3CX 4CX / MINI

Catalog number: SKX654681CX1
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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

20.91 zł

net price
17,00 zł
Available in large quantity Temporarily unavailable
17,00 zł
net price

20.91 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 2 points, it gives you 0.80 zł
  • Lowest price from 30 days before the discount: 20.91 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    BACKHOE LOADER
    MINIEXCAVATOR
    OEM NUMBERS
    809/00176 / 809/00129
    MATERIAL
    STEEL
    OUTER DIAMETER (MM)
    55,05
    INNER DIAMETER (MM)
    44,6
    HEIGHT (MM)
    47
    BUSH WITH COLLAR
    NO

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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
    +48 691-330-531
    +48 690-906-751

    Fax
    +48 17 864 31 20