Bosch Alternator 24V 55A 1986A01359

Bosch alternator, 24V and 55A output, part number 1986A01359. This unit is listed as an alternator for rotating electrical applications and is supplied each, with a 12 month warranty. It is a 55 amp unit with internal regulator and an alternator type listed as excl. vacuum pump.

Mounting details matter with alternators, and this unit is specified with three-point mounting, single leg alternator mount, 151mm mount centres B, 156mm mount centre to centre, and 156mm mount centres C. The pivot hole diameter is 11, the adjusting hole diameter is 12, and the shaft diameter is 17mm, so physical checking is important before purchase.

The application note lists suitability for Hino, Mercedes-Benz and Ssangyong, and the fitment preview includes Mercedes-Benz 1200 Series and John Deere 250C entries in the broader fitment data. Because alternators can vary by mount style, charge output and regulator arrangement, confirm the part number 1986A01359 and the mounting measurements against the unit being replaced.

Key Features

• Bosch 24V alternator
• 55A charge current
• Internal regulator
• Three-point mounting
• Single leg alternator mount
• Excludes vacuum pump

Specifications

• Voltage: 24V
• Power rating / charge current: 55A
• Mount centres B: 151mm
• Mount centre to centre: 156mm
• Mount centres C: 156mm
• Mount leg thickness: 80mm
• Pivot hole diameter: 11mm
• Adjusting hole diameter: 12mm

Fitment guidance

• Listed as suitable for Hino
• Listed as suitable for Mercedes-Benz
• Listed as suitable for Ssangyong
• Fitment preview includes Mercedes-Benz 1200 Series
• Fitment preview includes John Deere 250C

Application and Buying Notes

When replacing an alternator, start with the part number 1986A01359 and then check the electrical and mounting details. This unit is a 24V, 55A Bosch alternator with an internal regulator, so it needs to match the vehicle’s charging system rather than just the physical shape.

The mounting arrangement is specific: three-point mounting, single leg alternator mount, 151mm mount centres B, 156mm mount centre to centre, 156mm mount centres C, 11mm pivot hole, 12mm adjusting hole, and 17mm shaft diameter. If any of those measurements differ from the unit already fitted, do not assume it will swap straight over.

The alternator is listed as excl. vacuum pump, which is an important distinction on some applications. The recommended additional repair is a V-belt/V-ribbed belt, so it is sensible to inspect the belt condition and related drive components when replacing the alternator.

This unit weighs 6.34kg and carries a 12 month warranty. The application note points to Hino, Mercedes-Benz and Ssangyong, but those makes still need to be confirmed against the specific mounting style, charging requirement and part number on the vehicle.

If the vehicle is being repaired from a failed alternator, compare the old unit’s regulator type, mounting leg arrangement, pulley or shaft measurements and any vacuum pump provision before ordering. Matching the Bosch part number 1986A01359 is the safest way to narrow the replacement correctly.

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 1986A01359 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, Unit of Measure EACH, Warranty 12 Months, Mount Centres B 151mm, Mount Leg Thickness 80mm, Pivot Hole Diameter 11, Regulator Type Internal, Voltage 24, Mount Cnt to Cnt 156mm, Fastening Type Three-point mounting.

Additional published details for cross-checking include Recommended additional repairs V-Belt/V-Ribbed Belt, Weight 6.34kg, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A01359, Brand BOSCH, Description Bosch Alternator 24V 55A, Adjusting Hole Diameter 12, Mount Centres C 156mm, Pin Code IR165, Power Rating (Amp) 55.

Bosch Alternator 24V 55A. Part number 1986A01359 should be checked first. Listed voltage is 24. Listed output rating is 55. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. Regulator type is Internal. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 1986A01359, 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 in workshop, fleet, trade, agricultural, or construction service, the listed voltage 24 and output 55 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include JOHN DEERE 250C, JOHN DEERE 250C 2007, MERCEDES-BENZ 1200 SERIES, MERCEDES-BENZ 1200 SERIES 1975, MERCEDES-BENZ 1200 SERIES 1976, MERCEDES-BENZ 1200 SERIES 1977. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

Compatibility note: Please confirm fitment with part number 1986A01359, the 24V 55A specification, and the listed mounting measurements before ordering. Vehicle application data should be checked against the unit currently fitted, especially where the alternator mount, regulator type, or vacuum pump arrangement may differ.

FAQ

What is the part number for this Bosch alternator?

The part number is 1986A01359.

What voltage and output does this alternator have?

It is a 24V alternator with a 55A charge current rating.

Does this alternator have an internal regulator?

Yes. The regulator type is listed as internal.

Is this alternator supplied with a vacuum pump?

No. The alternator type is listed as excl. vacuum pump.

Which makes are listed as suitable for this alternator?

The product is listed as suitable for Hino, Mercedes-Benz and Ssangyong.

What mounting details should be checked before buying?

Check the three-point mounting arrangement, single leg alternator mount, 151mm mount centres B, 156mm mount centre to centre, 156mm mount centres C, 11mm pivot hole, 12mm adjusting hole and 17mm shaft diameter.