Bosch Alternator 12V 150A 1986A00743

This Bosch alternator is a 12V, 150A unit with part number 1986A00743, supplied as a single alternator assembly for rotating electrical applications. It is listed as an alternator type excl. vacuum pump, so the physical configuration and accessory arrangement need to match the vehicle application before purchase.

The unit is specified with a single pivoted lever fastening type and a 150A charge current. Those details matter when checking mounting style, electrical output, and whether the existing belt drive and bracket layout suit the replacement unit. It is also noted as manufactured in Spain.

Bosch identifies this alternator as being made from high quality raw materials, corrosion resistant, and fitted with a reduction drive designed to maintain continual speeds for easier starting. The product is backed by a 12 month warranty and is supplied as each.

Key Features

• 12V alternator with 150A output
• Bosch part number 1986A00743
• Excl. vacuum pump design
• Single pivoted lever fastening type
• Corrosion resistant construction
• Reduction drive for easier starting

Specifications

• Brand: Bosch
• Product type: Alternator
• Voltage: 12V
• Power rating: 150A
• Alternator charge current: 150A
• Part No.: 1986A00743
• Fastening type: Single pivoted lever
• Alternator type: Excl. vacuum pump

Fitment guidance

• Mercedes-Benz fitment data is supplied for this alternator.
• Referenced model groups include Mercedes-Benz CLK, CLS, E-Class, G-Class, S-Class and SL.
• Sample application data includes Mercedes-Benz CLK for model years 1998, 1999 and 2000.
• Fitment should still be checked against the exact vehicle application and part number before ordering.

Application and Buying Notes

When replacing a 12V, 150A alternator, the safest check is to match the Bosch part number 1986A00743 and confirm the vehicle uses the same alternator type, listed here as excl. vacuum pump. That detail can affect the unit’s physical layout and whether it will mount and connect correctly in the vehicle.

The fastening type is listed as single pivoted lever, which is important for bracket compatibility. You should also compare the belt arrangement, because the recommended additional repair is a V-Belt or V-Ribbed Belt. If the existing belt or drive components are worn, it is usually sensible to inspect them at the same time as the alternator.

The 150A charge current is the key electrical specification here. It tells you the unit’s output capacity, but it should not be used on its own to confirm fitment. Always check the vehicle application details, the mounting arrangement, and the accessory layout before committing to the part.

This alternator is described as corrosion resistant and manufactured in Spain, with a 12 month warranty. Those are useful buying details, but they do not replace application checking. The part number, voltage, fastening style, and alternator type remain the most reliable identifiers for confirming whether this is the correct unit.

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 1986A00743 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, Voltage 12, Fastening Type Single pivoted lever, Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 18.5, Manufactured in Spain, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00743.

Additional published details for cross-checking include Brand BOSCH, Description Bosch Alternator 12V 150A, Power Rating (Amp) 150, Alternator Charge Current [A] 150, Alternator Type excl. vacuum pump, Packaging length 24, Packaging height 20, Product Group 2 ALTERNATORS.

Bosch Alternator 12V 150A. Part number 1986A00743 should be checked first. Listed voltage is 12. Listed output rating is 150. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A00743, 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 150 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include MERCEDES-BENZ CLK, MERCEDES-BENZ CLK 1998, MERCEDES-BENZ CLK 1999, MERCEDES-BENZ CLK 2000. 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: Confirm compatibility using Bosch part number 1986A00743, the 12V 150A specification, the single pivoted lever fastening type, and the excl. vacuum pump alternator type against the vehicle’s application details before purchase.

FAQ

What is the part number for this Bosch alternator?

The part number is 1986A00743. For this listing, part number 1986A00743 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ CLK, MERCEDES-BENZ CLK 1998, MERCEDES-BENZ CLK 1999. 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 150A charge current and 150A power rating. For this listing, part number 1986A00743 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ CLK, MERCEDES-BENZ CLK 1998, MERCEDES-BENZ CLK 1999. These details should still be checked against the original unit before ordering.

Does this alternator include a vacuum pump?

No. It is listed as an alternator type excl. vacuum pump. For this listing, part number 1986A00743 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ CLK, MERCEDES-BENZ CLK 1998, MERCEDES-BENZ CLK 1999. These details should still be checked against the original unit before ordering.

What type of mounting or fastening does it use?

It is listed with a single pivoted lever fastening type. For this listing, part number 1986A00743 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ CLK, MERCEDES-BENZ CLK 1998, MERCEDES-BENZ CLK 1999. These details should still be checked against the original unit before ordering.

What vehicles is fitment listed for?

Fitment data is supplied for Mercedes-Benz model groups including CLK, CLS, E-Class, G-Class, S-Class and SL, with sample CLK applications shown for 1998, 1999 and 2000. For this listing, part number 1986A00743 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ CLK, MERCEDES-BENZ CLK 1998, MERCEDES-BENZ CLK 1999. These details should still be checked against the original unit before ordering.

What warranty is supplied with this alternator?

The listed warranty is 12 months. For this listing, part number 1986A00743 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ CLK, MERCEDES-BENZ CLK 1998, MERCEDES-BENZ CLK 1999. These details should still be checked against the original unit before ordering.