Bosch Alternator 12V 180A 1986A01098

This Bosch alternator is a 12V, 180A rotating electrical unit with part number 1986A01098. It uses a pad mount, an internal regulator, and a 6 groove pulley, with a pulley outside diameter of 48 mm.

It is listed under Bosch, with pin code IR201, and is supplied as each. The stated warranty is 12 months, which gives a clear reference point when matching the unit to the vehicle application.

For buyers replacing an existing alternator, the most important checks are the 12V system voltage, 180A output, 6 groove pulley arrangement, pad mounting style, and part number 1986A01098. Those details are the best way to compare the replacement unit before ordering.

Key Features

• Bosch alternator for 12V systems
• 180A power rating
• 6 groove pulley
• 48 mm pulley outside diameter
• Internal regulator
• Pad mount alternator

Specifications

• Brand: Bosch
• Product type: Alternator
• Product group: Rotating electrical
• Product group 2: Alternators
• Voltage: 12
• Power rating: 180A
• Pulley section: 6 groove
• Pulley outside diameter: 48 mm

Fitment guidance

• Mercedes-Benz applications are listed, including C-Class, CLK, CLS, E-Class, M-Class and SL.
• Porsche applications are listed, including 944.
• Volkswagen applications are listed, including Passat.
• Model year coverage is shown in the supplied applications for Mercedes-Benz C-Class, Porsche 944 and Volkswagen Passat.
• Fitment should be checked against the part number 1986A01098, pulley section, mounting style and regulator type before purchase.

Application and Buying Notes

When replacing an alternator, matching the part number 1986A01098 is the safest starting point, then confirming the electrical and mounting details. This unit is a 12V, 180A Bosch alternator with a pad mount, internal regulator and 6 groove pulley, so those points need to line up with the vehicle and the removed part.

The 48 mm pulley outside diameter is another useful check if the existing alternator is available for comparison. Even where the make and model appear in the application list, alternator setups can vary by engine, build date and charging system arrangement, so the physical unit and vehicle details should always be verified.

A 180A alternator is typically selected for vehicles that require the same charging output as the original fitment. If the original unit differs in pulley section, mount type or regulator arrangement, the replacement may not suit the vehicle without further checking.

The 12 months warranty applies to the listed part, but warranty cover does not confirm compatibility. Before ordering, compare the old unit, confirm the vehicle application, and make sure the Bosch part number and pin code IR201 correspond with the replacement you need.

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 1986A01098 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, Power Rating (Amp) 180, Pulley Section 6 Groove, Voltage 12, Product Group 2 ALTERNATORS, Part No. 1986A01098, Brand BOSCH.

Additional published details for cross-checking include Description Bosch Alternator 12V 180A, Pin Code IR201, Pulley Outside Diameter 48mm, Regulator Type Internal, Alternator Mount Pad, Product Group 1 ROTATING ELECTRICAL.

Bosch Alternator 12V 180A. Part number 1986A01098 should be checked first. Listed voltage is 12. Listed output rating is 180. 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 1986A01098, 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 180 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching Bosch part number 1986A01098, 12V system voltage, 180A output, 6 groove pulley, 48 mm pulley outside diameter, internal regulator and pad mount against the original alternator and the vehicle application details.

FAQ

What is the part number for this Bosch alternator?

The listed part number is 1986A01098. For this listing, part number 1986A01098 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2008, MERCEDES-BENZ C-CLASS 2009. These details should still be checked against the original unit before ordering.

What voltage and output does this alternator have?

It is a 12V alternator with a 180A power rating. For this listing, part number 1986A01098 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2008, MERCEDES-BENZ C-CLASS 2009. These details should still be checked against the original unit before ordering.

What type of pulley does it use?

It has a 6 groove pulley with a 48 mm pulley outside diameter. For this listing, part number 1986A01098 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2008, MERCEDES-BENZ C-CLASS 2009. These details should still be checked against the original unit before ordering.

Does it have an internal or external regulator?

This alternator uses an internal regulator. For this listing, part number 1986A01098 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2008, MERCEDES-BENZ C-CLASS 2009. These details should still be checked against the original unit before ordering.

What vehicles are shown in the fitment information?

Listed applications include Mercedes-Benz C-Class, CLK, CLS, E-Class, M-Class and SL, Porsche 944, and Volkswagen Passat. For this listing, part number 1986A01098 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2008, MERCEDES-BENZ C-CLASS 2009. These details should still be checked against the original unit before ordering.

What should I check before buying?

Check the part number 1986A01098, 12V voltage, 180A rating, pad mount, internal regulator, 6 groove pulley and 48 mm pulley outside diameter against the original unit and vehicle application. For this listing, part number 1986A01098 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2008, MERCEDES-BENZ C-CLASS 2009. These details should still be checked against the original unit before ordering.