Alternator 714/40476 JCB 3CX/4CX, aftermarket

ALE3005UX

Brand
KRAUF
Article
ALE3005UX
Machine system
Electrics
Part type
Alternator
Machine brand
JCB, HIDROMEK, MST
Manufacturing type
Aftermarket
Compatibility
JCB 3CX, 4CX
Machine series
3CX, 4CX, 5CX
Number of pulley grooves
4,6 pcs
Voltage
12 V
Signal type
L(Bolt)
Mounting dimension A
31 mm
All the features

In stock

0.00 ₺

We do not publish prices: they depend on exchange rates and change often. Click «Request price» and we will quote the current price on the day you ask.

Check the exact specifications and compatibility with your machine with our managers.

We are available Monday to Saturday, 9:00 – 18:00; closed on Sunday.

Free delivery to the carrier of your choice, or collect your order in Istanbul.

Could not find the part you need? Write to us and we will help you find an alternative or order it from the manufacturer.

Message on WhatsApp Message on Telegram Call us: +90 531 224 49 66

For the JCB 3CX and 4CX backhoe loaders: alternator 714/40476, an aftermarket part. The card also lists 714/40153.

Alternators differ in voltage (12 V or 24 V), current output, pulley type and mounting lugs, so the alternator is chosen by part number and compared with the old one. The number of grooves and the diameter of the pulley must suit the engine belt, since a wrong pulley makes the belt slip and wear. Over time the bearings, brushes and diodes wear, and bearing noise or a rustle as it turns is the first sign of bearing wear. The alternator label shows the maker's code, voltage and current rating, which are compared with the old unit when choosing.

Specifications

Part number	714/40476
Cross / alternative numbers	714/40153
Production type	Aftermarket
Part type	Alternator
System / group	Electrics
Machine make	JCB, HIDROMEK, MST
Series / model	3CX, 4CX, 5CX

Compatibility

According to the product card, this is a 12 V alternator linked to the Mahle AAK4598 reference. Compare the pulley and terminal type (L) with the old alternator. The catalogue also has the OEM version of this part. Other parts are in Alternators.

Fitting

Before removing the alternator, disconnect the battery negative and label the cables. Fit the new alternator, tighten its bolts and set the belt to the specified tension. After connecting the cables, reconnect the battery, start the engine, measure the charging voltage at the battery terminals and check that the charge lamp goes out.

Specifications

Machine system
Electrics
Part type
Alternator
Machine brand
JCB, HIDROMEK, MST
Manufacturing type
Aftermarket
Compatibility
JCB 3CX, 4CX
Machine series
3CX, 4CX, 5CX
Number of pulley grooves
4,6 pcs
Voltage
12 V
Signal type
L(Bolt)
Mounting dimension A
31 mm
Mounting dimension C
83 mm
Mounting dimension B
13 mm
Current
100 amp
Connector type
PAL0265
Water pump
No

Questions: 0

No questions about this product.

JCB 3CX / 4CX 07/10/2026 67

JCB 3CX and 4CX wiring diagrams before and after May 2009: sheets and component keys

Section C of the JCB service manual (publication 9803/3290-15) gives the JCB 3CX and 4CX backhoe loader wiring diagram in two versions: one for machines built up to May 2009 with analogue instruments and one for machines from May 2009 with the digital instrument panel. On the earlier machines the main machine circuit takes two sheets, with separate circuits for the gearboxes and options; the later circuit runs to 15 sheets. Below are the main sheets, the component keys and a guide to reading wire numbers.

JCB 3CX / 4CX 07/10/2026 37

JCB 3CX / 4CX Electrics: Fuses, Relays, Battery, Alternator and Starter Motor Tests

Section C of the JCB service manual (publication 9803/3290-15) covers the electrical system of JCB 3C, 3CX and 4CX backhoe loaders: fuses and relays, circuit diagrams for machines of different build years, battery, alternator and starter motor testing, the wire numbering system, harness repair, earth points and harness drawings. The PDF has 402 pages, most of them harness drawings.

Useful articles 05/10/2026 37

Starter, battery and alternator on a JCB 3CX/4CX: checks before replacing

If the machine is hard to start or the battery does not charge, do not rush to replace the starter or the alternator. Simple voltmeter readings often show that the cables, the earth or the battery itself are to blame. The data comes from the JCB service manual for 3C, 3CX and 4CX backhoe loaders. It covers machines with the JCB Dieselmax 4.4 l engine and a 12 V electrical system.