A high-quality transmission pump, a key component of the gearbox. It is a gear pump responsible for generating the oil pressure necessary for the operation of the torque converter and for lubricating and cooling the entire gearbox. Precision manufacturing guarantees the maintenance of factory pressure, which translates into a smooth drive and a long life for the transmission.
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 (Machine Type) | Model |
|---|---|
| JCB (Backhoe Loaders) | 3CX, 4CX (older models) |
| JCB (Telehandlers) | Loadall (older models) |
| JCB (Forklifts) | RTFL (Rough Terrain) |
The list above is for reference. Before purchasing, we recommend verifying the part number in the parts catalogue for your machine.
Transmission repair is a complex operation requiring specialist knowledge and tools. The gearbox is a heavy component, and its removal and installation create a risk of crushing. Always follow the manufacturer's service manual.
The transmission pump is the heart of the drive system. Its failure leads to a drop in oil pressure, which results in a lack of power, "slipping" clutches, and overheating of the gearbox. In extreme cases, it can lead to the seizure of the entire transmission.
A worn pump is a direct path to destroying the entire gearbox.
Shrapnel from a worn pump destroys the torque converter and clutch plates. The cost of replacing the pump is negligible compared to a full transmission overhaul. Don't take the risk – order a new, proven GX-AFTER pump and restore full power and efficiency to your drive system.
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It is one of the main causes. Low pressure from the pump causes the clutch to "slip". Other causes include a damaged torque converter, worn clutch plates, or leaks on the shaft's Teflon rings.
2. How do I check if the pump is worn?The best method is to measure the oil pressure at the dedicated test points on the gearbox, according to the service manual. Significantly lower pressure than the nominal value indicates pump wear.
3. I found metal filings in the transmission filter. What does that mean?Metal filings in the filter are a sign of a serious mechanical failure inside the gearbox. They most often come from a worn pump, torque converter, or bearings. In this case, you should stop work immediately and have the transmission overhauled to avoid complete destruction.
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Full Power
Restores correct pressure and drive force.
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Gearbox Protection
Ensures proper lubrication and cooling.
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High Durability
Construction resistant to high pressure and wear.
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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Pump transmission suitable for older 3CX 4CX models and telehandlers.

















