Bosch Alternator 12V 140A 1986A00888

This Bosch alternator is a 12V, 140A unit with part number 1986A00888. It is a new alternator with a pad mount, direct fastening setup, and a 6 groove pulley, so the key checks are voltage, charge output, mounting style, and pulley match before purchase.

The alternator is listed as type excl. vacuum pump and has a clockwise rotation. Measured details provided include a 70mm mount leg thickness, 57mm inside mounting legs, and a 56mm pulley outside diameter, all of which are useful when comparing to the unit already fitted to the vehicle.

Bosch states this alternator is manufactured to the same rigorous production standard as OE parts, with high tech regulators and rectifiers designed to protect onboard electrical systems. It is backed by a 12 month warranty and is supplied as each.

Key Features

• 12V alternator with 140A output
• New Bosch unit, part number 1986A00888
• Pad mount with direct fastening
• 6 groove pulley
• Clockwise rotation
• Excludes vacuum pump

Specifications

• Brand: Bosch
• Product type: Alternator
• Voltage: 12V
• Charge current / power rating: 140A
• Part number: 1986A00888
• Mount type: Pad
• Fastening type: Direct fastening
• Pulley section: 6 groove

Application and Buying Notes

The most important buying check on this Bosch alternator is matching the part number 1986A00888 with the unit currently fitted to the vehicle. Because no vehicle model list is supplied here, the safe approach is to confirm the mounting style, pulley arrangement, rotation, and output rating against the existing alternator before ordering.

This unit is specified at 12V and 140A, so it should only be compared with applications that use the same electrical system and charge output requirement. The pad mount and direct fastening design, along with the 6 groove pulley, mean physical fitment has to be confirmed carefully rather than assumed from brand name alone.

The alternator is listed as excl. vacuum pump, which is an important distinction when replacing a unit that may look similar from the outside. The provided dimensions, including 70mm mount leg thickness, 57mm inside mounting legs, and 56mm pulley outside diameter, are the practical references to use when matching the replacement part to the original.

If the existing belt shows wear, the recommended additional repair is a V-belt or V-ribbed belt. That is sensible to consider during alternator replacement, because belt condition can affect charging performance and can also create unnecessary load on the new unit if the drive system is not in good order.

Bosch notes high power output even at low engine speeds and protection for onboard electrical systems through high tech regulators and rectifiers. Those are useful design details, but they do not replace fitment checking. The vehicle application still needs to be confirmed against the exact alternator specification, especially where mounting depth, pulley section, or rotation direction matters.

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 1986A00888 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 Leg Thickness 70mm, Power Rating (Amp) 140, Pulley Section 6 Groove, Suits Unit Make Bosch, Alternator Mount Pad, Alternator Charge Current [A] 140, Alternator Type excl. vacuum pump.

Additional published details for cross-checking include Packaging length 23.9, Packaging height 20, Product Group 2 ALTERNATORS, Part No. 1986A00888, Brand BOSCH, Description Bosch Alternator 12V 140A, Inside Mounting Legs 57mm, Pin Code IR229, Pulley Outside Diameter 56mm.

Bosch Alternator 12V 140A. Part number 1986A00888 should be checked first. Listed voltage is 12. Listed output rating is 140. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. 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 1986A00888, 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 140 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

In the absence of a verified fitment list, the safest approach is to compare the removed unit directly with the listed product details. That includes checking the housing style, pulley layout, regulator arrangement, and any visible identification numbers before supply is approved.

The listed warranty is 12 Months. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment by comparing the part number 1986A00888, 12V system voltage, 140A output, pad mount, direct fastening layout, 6 groove pulley, and clockwise rotation with the alternator currently fitted to the vehicle.

FAQ

What is the part number for this Bosch alternator?

The part number listed is 1986A00888.

What voltage and output does this alternator have?

It is a 12V alternator with a 140A charge current / power rating.

Is this alternator new or remanufactured?

It is listed as new.

What mounting style does it use?

It uses a pad mount with direct fastening.

What pulley setup is listed?

The alternator has a 6 groove pulley and a 56mm pulley outside diameter.

Do I need to check anything before buying?

Yes. Confirm the part number, 12V system voltage, 140A output, pad mount, direct fastening, 6 groove pulley, clockwise rotation, and the listed dimensions against the unit being replaced.