Bosch Alternator 12V 110A Part No. 1986A00805

This Bosch alternator is a 12V, 110A unit with part number 1986A00805 and a Pin Code of IR205. It is a new alternator with an internal regulator, direct fastening, and a pad mount, so the physical details matter when comparing it to the unit already fitted to the vehicle.

The alternator has a 6 groove pulley with a 47mm outside diameter, rotates clockwise (CW), and uses an inside mounting leg measurement of 43mm with a mount centre-to-centre of 156mm. Those dimensions are the main checks to confirm before ordering, especially where the existing alternator has similar but not identical mounting points.

Built by Bosch and classified as a rotating electrical component, this unit is supplied with a 12 month warranty. It is listed as an alternator type excluding vacuum pump, and the recommended additional repair at time of replacement is the V-belt/V-ribbed belt, which is worth checking if the belt is worn, cracked, or contaminated.

Key Features

• 12V alternator with 110A charge current
• Bosch unit, part number 1986A00805
• Internal regulator design
• 6 groove pulley, 47mm outside diameter
• Clockwise rotation (CW)
• Pad mount with direct fastening

Specifications

• Voltage: 12V
• Power rating: 110A
• Alternator charge current: 110A
• Part No.: 1986A00805
• Pin Code: IR205
• Brand: Bosch
• Alternator type: excl. vacuum pump
• Regulator type: Internal

Fitment guidance

• Fitment is not fully verified here.
• Known application grouping provided: MINI and MINI MINI.
• Sample application years listed: MINI MINI 2001, 2002, 2003.
• Grouped preview also includes MINI 2001 through MINI 2008.
• Confirm the part number 1986A00805 and mounting details before ordering.

Application and Buying Notes

The key purchasing checks on this Bosch alternator are the part number 1986A00805, the 12V system voltage, and the 110A output rating. The mounting setup is also specific: pad mount, direct fastening, 43mm inside mounting legs, and 156mm mount centre-to-centre. If any of those points differ from the unit being replaced, it should be treated as a different alternator.

The pulley arrangement is another important match point. This unit uses a 6 groove pulley with a 47mm outside diameter and clockwise rotation. That makes belt alignment and belt profile relevant, so the existing drive setup should be checked carefully before fitting. The listing also notes an alternator type excluding vacuum pump, which is a useful distinction on vehicles that may use different alternator configurations.

Bosch lists this as a new alternator with an internal regulator and premium bearing construction, and the product notes mention non-recycled copper and regulators designed for the vehicle application. Those are useful details, but they do not replace a proper physical comparison. The safest approach is to verify the old unit, the part number, and the mounting and pulley details together rather than relying on appearance alone.

If the belt shows wear, the recommended additional repair is the V-belt/V-ribbed belt. Replacing a tired belt at the same time can avoid repeat labour, especially where the belt has glazing, cracking, contamination, or incorrect tension. As always, confirm the vehicle application before purchase, because the fitment group provided is only a guide and not a substitute for checking the actual unit on the vehicle.

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 1986A00805 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, Pin Code IR205, Pulley Outside Diameter 47mm, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Pad, New / Reman. New, Fastening Type Direct fastening.

Additional published details for cross-checking include Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 20, Manufactured in China, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00805, Brand BOSCH, Description Bosch Alternator 12V 110A, Inside Mounting Legs 43mm, Power Rating (Amp) 110, Pulley Section 6 Groove.

Bosch Alternator 12V 110A. Part number 1986A00805 should be checked first. Listed voltage is 12. Listed output rating is 110. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. Regulator type is Internal. Pulley configuration is 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 1986A00805, 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 12 and output 110 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include MINI MINI, MINI MINI 2001, MINI MINI 2002, MINI MINI 2003. 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 compatibility by matching the Bosch part number 1986A00805, the 12V 110A rating, and the mounting and pulley details against the unit fitted to the vehicle before ordering.

FAQ

What is the part number for this Bosch alternator?

The part number is 1986A00805.

What voltage and output does it have?

It is a 12V alternator with a 110A power rating and 110A charge current.

Is this a new or remanufactured unit?

It is listed as new, not remanufactured.

Does it have an internal regulator?

Yes. The regulator type is internal.

What pulley setup does it use?

It has a 6 groove pulley with a 47mm outside diameter and clockwise rotation.

What vehicles is it listed against?

The fitment grouping provided includes MINI and MINI MINI, with sample application years shown for MINI MINI 2001, 2002, and 2003. Fitment should still be confirmed against the part number and mounting details.