Gearbox housing casting (front case) 459/30269 from the GX-OEM line. This structural component encloses the torque converter (bell housing). Dedicated to JCB 3CX and 4CX backhoe loaders equipped with manual transmissions (Synchro Shuttle) in 4- and 6-speed versions. The product meets strict OEM dimensional standards, ensuring perfect alignment between the engine and transmission.
GX-OEM components guarantee the restoration of factory drivetrain performance. Precise CNC machining of contact surfaces and mounting seats eliminates the risk of leaks and vibrations, which is critical for torque converter life.
| Machine Type | Models |
|---|---|
| Backhoe Loaders | 3CX, 4CX (Manual Synchro Shuttle transmissions) |
| Others | Telehandlers with identical drivetrain (check part number). |
The model list is for reference. Compatibility depends on the gearbox type installed in the machine.
When replacing the converter housing, it is necessary to use new seals (gasket between housing and engine block, pump gasket). It is also worth verifying the condition of the torque converter and transmission pump.
Cracks in the bell housing can lead to drivetrain misalignment, destroying the torque converter and transmission pump. Oil leaks in this area pose a risk of machine slippage and environmental contamination.
Housing 459/30269 acts as a connector between the engine and the gearbox, protecting the torque converter and providing a mounting point for the pump.
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Yes, provided it is a Synchro Shuttle manual transmission. These gearboxes came in 4 and 6 speed variants, often sharing the same housing components.
No, the product is the bare housing casting only. Gaskets, bolts, and dowel pins must be purchased separately.
Do you have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you select the right part to get your equipment back to work as quickly as possible.
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Gearbox housing - gearbox housing suitable for JCB 3CX 4CX backhoe loaders with a 4- or 6-speed manual gearbox.

















