Plug 320/04082 JCB Dieselmax, aftermarket

320/04082

Article
320/04082
Machine system
Engine
Part type
Plug
Machine brand
JCB
Manufacturing type
Aftermarket
Compatibility
JCB Dieselmax 444
All the features

In stock

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Plug 320/04082 is an aftermarket part for the JCB Dieselmax 444 engine.

The plug closes a hole or port on the engine, keeping fluid in and dirt out. A lost or cracked plug, or one with a damaged seal, leaks. It must suit the diameter and shape of its hole, so it is chosen by part number. Small as it is, the plug is needed to keep the system sealed: a missing plug means loss of oil, fuel or coolant and dirt getting in. Keep plugs removed during servicing in a safe place so they are not lost. The plug is made of a material that withstands the pressure and temperature of its system; the part number defines where it fits. The plug is supplied new and ready to fit.

Specifications

Part number	320/04082
Production type	Aftermarket
Part type	Plug
System / group	Engine
Machine make	JCB

Compatibility

The part is listed for JCB 3CX and 4CX backhoe loaders. Other parts are in JCB Dieselmax engine.

Fitting

Use the sealant named in the service manual where needed. Do not overtighten the plug.

Specifications

Machine system
Engine
Part type
Plug
Machine brand
JCB
Manufacturing type
Aftermarket
Compatibility
JCB Dieselmax 444

Questions: 0

No questions about this product.

07/10/2026 34

JCB Dieselmax Engine in the JCB 3CX / 4CX: Builds, Technical Data and Servicing

Section K of the JCB service manual (publication 9803/3290-14) deals with the installation of the JCB Dieselmax engine in JCB 3C, 3CX and 4CX backhoe loaders. It gives the technical data for each engine build, the cold start heater electrics with their fault codes and the operation of the viscous fan coupling, together with the removal procedures for the radiator, expansion tank, fuel injection pump and the engine itself. The PDF runs to 30 pages.