21-0738
  • Brand
    JF Parts
  • Article
    21-0738
  • Machine system
    Electrics
  • Part type
    Beacon
  • Machine brand
    JCB
  • Manufacturing type
    Aftermarket
  • All the features
In stock
0.00 ₺
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LED beacon LED H124 D156 is an aftermarket part for the JCB machines.

An LED beacon is an amber warning light that makes a working machine noticeable from a distance, an important part of safety on sites, by the roadside and in yards. LEDs draw far less current than old filament bulbs, are less affected by vibration and need no bulb changes. The light pattern (rotating or flashing) is produced by groups of LEDs under the amber cover. The beacon is chosen by the height and diameter given on the product card, taking into account its place on the cab roof and any low doorways. The beacon is placed at the highest point of the cab roof so its light is not shaded by cab equipment.

Specifications


Part numberLED H124 D156
Production typeAftermarket
Part typeBeacon
System / groupElectrics
Machine makeJCB

Compatibility

According to the product card, its dimensions are: height 124 mm, diameter 156 mm. Other parts are in Beacons.

Fitting

After fitting, switch the beacon on and off to check it works and is visible from every side, routing the cable so it is not trapped by doors or windows and does not touch moving parts. The part comes new; before fitting, compare its part number, voltage and connection type with the old part. After the change, check the function and the warnings on the instrument panel; the connections must be clean, dry and tight.

Specifications

  • Machine system
    Electrics
  • Part type
    Beacon
  • Machine brand
    JCB
  • Manufacturing type
    Aftermarket
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07/10/2026 64
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.
07/10/2026 36
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.
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