Bosch Alternator 24V 110A Part No. 1986A01034

This Bosch alternator is a 24V, 110A unit, supplied as each and identified by part number 1986A01034. It is an alternator type listed as excl. vacuum pump, with an internal regulator and an 8 groove pulley section, so the electrical and mounting details need to match the vehicle application before ordering.

The unit is listed with a twin leg alternator mount, double pivot lever fastening type, 11 mm pivot hole diameter and 13 mm adjusting hole diameter. Those mounting measurements matter when comparing the existing alternator, because the physical fit is just as important as the electrical rating on a 24V, 110A replacement.

Bosch lists this alternator as manufactured in Spain and backed by a 12 month warranty. The construction notes mention high quality raw materials, non-recycled copper, vehicle-specific regulators and premium quality bearings, which are relevant points when you are replacing a working unit on a heavy vehicle electrical system.

Recommended additional repairs include the V-belt or V-ribbed belt. That is worth checking at the same time as the alternator, because belt condition and drive alignment affect charging performance and can save repeat labour if the belt is already worn.

Key Features

• 24V alternator rated at 110A
• Part number: 1986A01034
• Internal regulator
• 8 groove pulley section
• Twin leg alternator mount
• Double pivot lever fastening type

Specifications

• Brand: Bosch
• Product type: Alternator
• Power rating: 110 amp
• Voltage: 24V
• Alternator charge current: 110A
• Pulley outside diameter: 74 mm
• Pivot hole diameter: 11 mm
• Adjusting hole diameter: 13 mm

Fitment guidance

• Fitment information supplied includes Volvo applications.
• Listed fitment makes and groups include Volvo, Volvo FH, Volvo FH II, Volvo FM, Volvo FM II and Volvo FMX.
• Sample applications supplied include Volvo FH 2005, 2006 and 2007.
• Fitment preview data also includes Volvo FH model years through 2012, including FH II 2012, and Volvo FM.
• Match the part number 1986A01034, the 24V 110A rating, the twin leg mount and the 8 groove pulley before ordering.

Application and Buying Notes

When replacing a heavy vehicle alternator, the safest approach is to confirm the part number 1986A01034 first, then check the electrical rating and the mounting pattern. This unit is specified at 24V and 110A, with an internal regulator, so it should only be considered where those details match the vehicle’s original setup.

The mounting and pulley details are just as important as the output rating. This alternator has an 11 mm pivot hole diameter, 13 mm adjusting hole diameter, a twin leg mount, a double pivot lever fastening type and a 74 mm pulley outside diameter with an 8 groove section. If any of those differ from the removed unit, the alternator may not install correctly or may not run in line with the existing drive arrangement.

The listing also notes an alternator type excl. vacuum pump. That point should be checked carefully on the vehicle, because some applications use different alternator arrangements and related engine accessories. Comparing the existing unit against the part number and the mounting style is the most reliable way to avoid a mismatch.

If the existing belt shows wear, Bosch recommends additional repair of the V-belt or V-ribbed belt. In practical terms, it is worth inspecting the belt, pulleys and surrounding drive components at the same time, especially when the alternator has been removed for charging system work.

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 1986A01034 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, Pivot Hole Diameter 11, Pulley Outside Diameter 74mm, Regulator Type Internal, Alternator Mount Twin Leg, Fastening Type Double Pivot Lever, Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 22.5.

Additional published details for cross-checking include Manufactured in Spain, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A01034, Brand BOSCH, Description Bosch Alternator 24V 110A, Adjusting Hole Diameter 13, Power Rating (Amp) 110, Pulley Section 8 Groove, Voltage 24, Alternator Charge Current [A] 110.

Bosch Alternator 24V 110A. Part number 1986A01034 should be checked first. Listed voltage is 24. Listed output rating is 110. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is Internal. Pulley configuration is 8 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 1986A01034, 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.

Compatibility note: Confirm compatibility by matching part number 1986A01034, 24V 110A output, internal regulator, twin leg mount, 8 groove pulley and the listed pivot and adjusting hole sizes against the vehicle and removed alternator before purchase.

FAQ

What is the voltage and output of this alternator?

It is a 24V alternator rated at 110A, with alternator charge current also listed as 110A.

What is the part number?

The part number listed is 1986A01034.

Does this alternator have an internal regulator?

Yes. The regulator type is listed as internal.

What mounting and pulley details are listed?

It has a twin leg alternator mount, double pivot lever fastening type, 11 mm pivot hole diameter, 13 mm adjusting hole diameter, 74 mm pulley outside diameter and an 8 groove pulley section.

Is vacuum pump compatibility included?

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

What vehicles is it listed against?

Fitment data supplied includes Volvo applications, including Volvo FH, Volvo FH II, Volvo FM, Volvo FM II and Volvo FMX, with sample Volvo FH applications from 2005, 2006 and 2007.