Niehoff Alternator 24V 300A C706 New Heavy Commercial

The Niehoff C706 alternator is a new heavy commercial unit rated at 24V and 300A, supplied as an each item for rotating electrical applications. It suits a Niehoff unit make and is listed with a twin leg alternator mount, a 237mm mount centre to centre measurement, and 176mm inside mounting legs.

This alternator is specified with an external regulator type, and the notes state no regulator is included. A regulator to suit is identified as A2-214. That point matters when matching the charging system, because the alternator and regulator need to be considered together rather than as separate assumptions.

The unit weighs 35kg and carries part number C706. Other recorded measurements include a 30mm shaft diameter, 10mm adjusting hole diameter, and 13mm pivot hole diameter. The pulley section is noted as not applicable, so it should be checked against the intended application before ordering.

Feature details supplied for this Niehoff alternator include high efficiency, brushless construction, long life bearings, conformal coating on the rectifier, P terminals for optional tachometer use, and a D+ terminal for an optional charge warning light. Those are practical details for buyers comparing a replacement alternator for a 24V heavy commercial setup.

Key Features

• 24V heavy commercial alternator
• 300A power rating
• New unit
• External regulator type
• Brushless design
• Long life bearings

Specifications

• Brand: Niehoff
• Part No.: C706
• Voltage: 24V
• Power rating: 300A
• Type: Alternator heavy comm
• Unit of measure: Each
• New / Reman.: New
• Warranty: One year

Application and Buying Notes

Before ordering, confirm the alternator on the vehicle or machine is a Niehoff C706 and that the charging system is designed around 24V operation and a 300A output. The regulator arrangement also needs attention, because this unit is listed as external regulator type and no regulator is included with the alternator.

Check the mounting dimensions against the original unit, especially the twin leg mount, 237mm mount centre to centre, and 176mm inside mounting legs. The 10mm adjusting hole diameter, 13mm pivot hole diameter, and 30mm shaft diameter are useful reference points when comparing brackets, arms, and drive hardware.

The pulley section is marked not applicable, so it should not be assumed to match an existing pulley setup without checking the vehicle or equipment application. If the installation needs tachometer or warning light connections, the P terminals and D+ terminal may be relevant, but those connections still need to align with the existing wiring arrangement.

Because the unit is relatively heavy at 35kg, handling and installation should be planned accordingly. It is also worth confirming whether the A2-214 regulator is required for the application, as the alternator is supplied without a regulator and the charging system should be matched as a complete setup rather than by part appearance alone.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number C706 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type ALTERNATOR HEAVY COMM, Unit of Measure EACH, Warranty One Year, Inside Mounting Legs 176mm, Power Rating (Amp) 300, Regulator Type External, Suits Unit Make Niehoff, Note No regulator. Regulator to suit - A2-214, Mount Cnt to Cnt 237mm, Weight 35kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. C706, Brand NIEHOFF, Description Niehoff Alternator 24V 300A, Adjusting Hole Diameter 10, Pivot Hole Diameter 13, Pulley Section Not Applicable, Shaft Diameter 30mm, Voltage 24, Alternator Mount Twin Leg.

Niehoff Alternator 24V 300A. Part number C706 should be checked first. Listed voltage is 24. Listed output rating is 300. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is External. Pulley configuration is Not Applicable. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number C706, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a alternator heavy comm in workshop, fleet, trade, agricultural, or construction service, the listed voltage 24 and output 300 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

In the absence of a verified fitment list, the safest approach is to compare the removed unit directly with the listed product details. That includes checking the housing style, pulley layout, regulator arrangement, and any visible identification numbers before supply is approved.

The listed warranty is One Year. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Please confirm fitment by checking part number C706, the 24V 300A specification, twin leg mounting dimensions, and the external regulator arrangement before ordering.

FAQ

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does this alternator have?

It is rated at 24V and 300A.

Does it include a regulator?

No. The note states no regulator is included, and a regulator to suit is identified as A2-214.

What mounting type does it use?

It uses a twin leg alternator mount, with 237mm mount centre to centre and 176mm inside mounting legs.

Are there any connection terminals noted?

Yes. The listed features include P terminals for optional tachometer use and a D+ terminal for an optional charge warning light.

What part number should I use to confirm compatibility?

The listed part number is C706.