A closed-circuit crankcase breather (oil separator), a key component of the crankcase ventilation system. Its job is to equalize pressure in the engine and, most importantly, to separate oil mist from blow-by gases, which are then returned to the intake system. It ensures lower emissions and protects the engine from oil loss.
Original Equipment Manufacturer (OEM) quality product – guarantees a perfect fit and parameters identical to the original part.
| Brand (Machine Type) | Model |
|---|---|
| JCB (Backhoe Loaders) | 3CX, 4CX (with Perkins engines, manufactured before approx. 2005) |
| JCB (Telehandlers) | Loadall (models with Perkins engines) |
The list above is for reference. It is crucial to ensure that your machine is fitted with a Perkins 1000 series engine (e.g., AK, AR).
A clogged breather is often a symptom, not the cause, of a problem. When replacing it, be sure to check that all hoses connected to it are clear and unobstructed. Ensure your engine gets clean air by using high-quality REDX air filters.
A functioning breather protects the engine from excessive crankcase pressure, which can lead to seals being pushed out and oil leaks. A correctly working separator also minimizes the amount of oil entering the intake, which protects the turbocharger and ensures clean combustion.
Replace the breather if you notice any of the following symptoms:
✓ The Precision of Original Parts at Your Fingertips: Choose GX-OEM Quality
By choosing GX-OEM parts, you are investing in the uncompromising quality of the first assembly. Our products are made with the highest precision, guaranteeing a perfect fit and parameters identical to the original. This is the best investment in a long and trouble-free operation of your machine, eliminating problems with engine pressure.
Is your engine "sweating" oil? Don't wait for major leaks!
A clogged breather is a direct path to damaged seals and costly repairs. Order a new breather today and ensure your engine can "breathe" properly!
Cleaning is difficult and often ineffective, as contaminants (carbon, oil sludge) block the internal passages and membranes. Replacing it with a new one is the most reliable way to restore the system's full functionality.
2. Will this breather fit a JCB DieselMax engine?No, this model is exclusively for older machines with a Perkins engine. The ventilation systems in JCB DieselMax and EcoMax engines are different and require different parts.
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Engine Protection
Prevents oil leaks and damage to seals.
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Clean Combustion
Reduces the amount of oil in the intake system.
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OEM Quality
Reliability and durability just like the original.
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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Breather suitable suitable for JCB 3CX 4CX backhoe loaders with AR AK engines.

















