High-performance 320/B4420 engine oil filter by REDX. Designed specifically for modern JCB DieselMax and EcoMax engines manufactured after 2005. This is a spin-on filter dedicated to a wide range of JCB machines, including 3CX/4CX backhoe loaders, telehandlers, crawler excavators, and compact machinery. Ensures optimal engine protection and extended service intervals.
REDX filters meet or exceed OEM specifications. Thanks to advanced filtration media, they effectively remove soot, metal filings, and other contaminants from the oil, protecting bearings, turbocharger, and other key engine components from premature wear.
| Machine Group | Example Models |
|---|---|
| Backhoe Loaders | 3CX, 4CX, 5CX (Eco, Super, Sitemaster series - DieselMax engines), 1CX, 2CX, MIDI CX |
| Telehandlers | Loadall: 531-70, 535-95, 535-125, 535-140, 540-140, 540-170, 541-70, 550-140 (and many others) |
| Crawler Excavators | JS130, JS145, JS160, JS180, JS190, JS200, JS210, JS220 (Models with JCB engines) |
| Other Machines | Site Dumpers, Wheel Loaders (403, 406), RTFL Forklifts, Vibromax Rollers, Skid Steers (Robot) |
The filter fits JCB engines produced from 2005 onwards. For older machines (Perkins engines), a different filter is required.
The filter comes with an integrated gasket. When changing engine oil, we also recommend replacing fuel filters and the air filter to ensure comprehensive powertrain maintenance.
Neglecting oil filter replacement leads to contaminant buildup, which can clog oil passages, causing oil pressure drop and engine seizure. Regular service is the foundation of long machine life.
Filter 320/B4420 is responsible for cleaning the engine lubricating oil from soot, dust, filings, and combustion products.
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No. Perkins engines (used in JCB before 2005) have a different thread and filter dimensions. This model is dedicated exclusively to JCB DieselMax/EcoMax engines.
The mounting thread is metric M22x1.5. This is standard for newer JCB engines.
The standard interval for JCB DieselMax engines is 500 hours (using high-quality oil). Always follow the machine's service manual recommendations.
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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Suitable for machines with JCB DieselMax and EcoMax engines

















