A high-quality shaft seal, a key component sealing the connection between the transmission charge pump and the torque converter. Its function is to prevent oil leaks from the transmission where the pump's drive shaft enters the converter. Made of a durable, oil-resistant material, it ensures reliability under high temperature and pressure conditions.
A VICORTEX brand product – premium quality replacements that guarantee long life and reliability, even when working in heavy-duty conditions.
| Brand (Machine Type) | Model |
|---|---|
| JCB (Backhoe Loaders) | 2CX, 3CX, 4CX |
| JCB (Telehandlers) | Loadall (wide range of models) |
| JCB (Wheel Loaders) | Various models |
The list above is for reference. We recommend verifying the dimensions on your machine before purchasing.
Replacing this seal requires splitting the engine from the transmission. This is an ideal time for a comprehensive service. Always change the transmission oil to fresh HYPTRON oil and replace the transmission oil filter with a new REDX filter. Also, inspect the condition of the torque converter's drive plate.
The transmission pump seal is a critical barrier between the gearbox and the torque converter. Its failure leads to a rapid leak of transmission oil, which can quickly lead to the seizure of the charge pump, converter, and the entire transmission – one of the most expensive failures on a machine.
Stop the machine immediately and replace the seal if you notice:
✓ Durability in the Toughest Conditions: Trust VICORTEX
The VICORTEX brand is a new generation of premium replacement parts, designed for maximum durability. Our seals, made from carefully selected rubber compounds (Viton®), are exceptionally resistant to abrasion, high temperatures, and aggressive oils. By choosing VICORTEX, you invest in certainty and peace of mind that your repair will be durable.
See a leak between the engine and transmission? Don't risk seizing the drive!
The cost of replacing a seal is negligible compared to a full transmission overhaul. Order a new, reinforced VICORTEX seal today and protect your machine from catastrophic failure!
This is one of two main possibilities. A leak in this area can come from either this seal (transmission oil, usually red or yellow) or the rear crankshaft seal (engine oil, black). You must identify the type of leaking oil.
2. Is replacing this seal complicated?Yes, this is one of the more labor-intensive repairs because it requires splitting the engine from the transmission and removing the torque converter. It is a job best left to an experienced mechanic.
3. What is the most common cause of failure for this seal?The most common causes are natural material wear, damage during installation, operation with contaminated or old hydraulic oil, and wear of the charge pump bearing, which causes shaft "wobble" and destroys the seal lip.
🛡️
Transmission Protection
Prevents drive seizure due to oil loss.
🎯
Leak Elimination
Restores 100% system tightness.
📦
Premium Quality
Durability and reliability of the VICORTEX brand.
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.
Data sheet
Specific References
Manufacturer
Responsible person
See also similar products



Seal shaft between the drive pump and the torque converter, suitable for, among others, for JCB 2CX 3CX 4CX backhoe loaders and telescopic loaders.

















