A critical structural component of the backhoe arm – this is a brand new kingpost (slew) carriage by GX-AFTER. It is the main casting that attaches the entire dipper arm to the sideshift frame and transfers the slew forces. This unit is designed for JCB 3CX and 4CX backhoe loaders manufactured after 1997. Made from high-grade cast steel and precision-machined to ensure a perfect fit for bushings and pins, guaranteeing smooth slew operation and long service life.
GX-AFTER is the smart choice for your machine. We provide high-class replacement parts that combine excellent quality with an attractive price. Each part is carefully verified to ensure full compatibility and reliability you can depend on.
| Brand | Type / Series / Model |
|---|---|
| JCB | Backhoe Loaders: 3CX, 4CX (models manufactured after 1997) |
The list above is for reference. It is crucial to verify the machine's build date (post-1997) and the part number on the old kingpost.
Replacing a kingpost carriage is a complex service operation. Before disassembly, ensure the entire backhoe arm is securely supported and disconnected from the machine. The kingpost is an extremely heavy component – risk of crushing. Always use certified lifting equipment.
The kingpost carriage is the central pivot point of the backhoe arm. It transfers all digging forces to the machine's frame and allows the arm to slew left and right. It is one of the most high-stress structural components on the machine.
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Older models (pre-1997) had a different design and different mounting points for the pins and slew rams. This model (128/E5582) is specifically for the newer (post-1997) machines and is not interchangeable with the older versions.
2. Does this kit include pins and bushings?No, this product is the kingpost casting (body) only. The pins, bushings, and shims must be purchased separately to ensure a complete and correct repair.
3. What is a "Kingpost Carriage"?It is the main load-bearing component of the backhoe arm, which connects the slew rams, the main boom, and the sideshift mechanism. It allows the entire boom and dipper to pivot (slew) left and right.
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.
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Kingpost suitable for JCB 3CX 4CX / 1997->

















