Bosch Alternator 12V 140A Foot-mounted Part No. 1986A00890

The Bosch Alternator 12V 140A is a rotating electrical component supplied as a foot-mounted unit with alternator charge current rated at 140A. It carries Part No. 1986A00890 and is listed as an alternator type excl. vacuum pump, so the mounting arrangement and application details need to match the vehicle before purchase.

This unit is supplied as each and is covered by a 12 Months warranty. Packaging dimensions are 23.9 x 20 x 20, and the alternator is manufactured in China. For buyers comparing replacement options, the key identifiers to confirm are Bosch brand, 12V system voltage, 140A output, foot-mounted fastening type, and Part No. 1986A00890.

The listed fitment information references Volvo applications, including Volvo S60, S80, V70, XC70 and XC90 entries. Because alternators are application-sensitive, the safest approach is to confirm the part number, mounting style, belt drive arrangement, and whether the original unit is the same alternator type before ordering.

One recommended additional repair is a V-Belt/V-Ribbed Belt, which is worth checking if the existing belt shows wear, cracking, glazing, or noise. Matching the alternator specification to the vehicle’s charging system is important, especially where the alternator is mounted in a space-limited engine bay or forms part of a specific accessory drive layout.

Key Features

• Bosch alternator, 12V system
• 140A alternator charge current
• Foot-mounted fastening type
• Alternator type: excl. vacuum pump
• Part No. 1986A00890
• 12 Months warranty

Specifications

• Brand: Bosch
• Product type: Alternator
• Voltage: 12V
• Charge current: 140A
• Fastening type: Foot-mounted
• Alternator type: Excl. vacuum pump
• Part No.: 1986A00890
• Unit of measure: Each

Fitment information supplied

• Volvo
• Volvo S60
• Volvo S80
• Volvo V70
• Volvo XC70
• Volvo XC90
• Volvo S60 2000 to 2010 entries are shown in the supplied fitment preview

Application and Buying Notes

Before ordering, check that the vehicle uses a 12V alternator with a 140A charge current and a foot-mounted fastening arrangement. The alternator is listed as excl. vacuum pump, so the replacement needs to match the original configuration rather than just the electrical rating.

Part No. 1986A00890 is the strongest reference point for matching. If the old unit has a visible Bosch number, compare it carefully with the listed part number, and also confirm the belt drive style because a V-Belt/V-Ribbed Belt is noted as a recommended additional repair item.

The fitment preview points to Volvo applications, including S60, S80, V70, XC70 and XC90 references. Even so, model naming alone is not enough for alternator selection, as engine and accessory drive variations can change the correct part.

If the existing alternator is noisy, overcharging, undercharging, or has bearing wear, it is sensible to inspect the belt condition at the same time. A worn belt can place extra load on the charging system, but the correct replacement still depends on the physical mounting, electrical output, and part number match.

For repeatable results, use the vehicle identification details and the original alternator label together. The combination of Bosch branding, 12V, 140A, foot-mounted fitment, and Part No. 1986A00890 gives a practical check list before purchase, especially where the vehicle has had previous repairs or non-original parts fitted.

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 1986A00890 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, Fastening Type Foot-mounted, Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 20, Manufactured in China, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00890, Brand BOSCH.

Additional published details for cross-checking include Description Bosch Alternator 12V 140A, Alternator Charge Current [A] 140, Alternator Type excl. vacuum pump, Packaging length 23.9, Packaging height 20, Product Group 2 ALTERNATORS.

Bosch Alternator 12V 140A. Part number 1986A00890 should be checked first. Listed output rating is 140. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A00890, 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 output 140 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by checking the original part number, mounting style, 12V/140A specification, and whether the vehicle uses the same alternator type excl. vacuum pump before ordering.

FAQ

What is the voltage and output of this alternator?

It is a 12V alternator with a charge current rating of 140A. For this listing, part number 1986A00890 is the main reference point. Listed output rating is 140. Published fitment references include VOLVO S60, VOLVO S60 2000, VOLVO S60 2001. These details should still be checked against the original unit before ordering.

What is the part number?

The listed Part No. is 1986A00890. For this listing, part number 1986A00890 is the main reference point. Listed output rating is 140. Published fitment references include VOLVO S60, VOLVO S60 2000, VOLVO S60 2001. These details should still be checked against the original unit before ordering.

What mounting type does it use?

It is listed as foot-mounted. For this listing, part number 1986A00890 is the main reference point. Listed output rating is 140. Published fitment references include VOLVO S60, VOLVO S60 2000, VOLVO S60 2001. These details should still be checked against the original unit before ordering.

Does it include a vacuum pump?

No. The alternator type is listed as excl. vacuum pump. For this listing, part number 1986A00890 is the main reference point. Listed output rating is 140. Published fitment references include VOLVO S60, VOLVO S60 2000, VOLVO S60 2001. These details should still be checked against the original unit before ordering.

What warranty is listed?

It carries a 12 Months warranty. For this listing, part number 1986A00890 is the main reference point. Listed output rating is 140. Published fitment references include VOLVO S60, VOLVO S60 2000, VOLVO S60 2001. These details should still be checked against the original unit before ordering.

Which vehicles are shown in the fitment preview?

The supplied fitment information references Volvo, including Volvo S60, Volvo S80, Volvo V70, Volvo XC70 and Volvo XC90 entries. For this listing, part number 1986A00890 is the main reference point. Listed output rating is 140. Published fitment references include VOLVO S60, VOLVO S60 2000, VOLVO S60 2001. These details should still be checked against the original unit before ordering.