Vemo Alternator 12V 90A New Internal Regulator Twin Leg Part No. V20-13-40380

The VEMO Alternator V20-13-40380 is a new 12V, 90A unit with an internal regulator and twin leg alternator mount. It is listed as each and carries a one year warranty, which makes the key electrical and mounting details easy to check before ordering.

This alternator is identified as a VEMO part, with the brand positioned as a premium European supplier. It is specified as 90 amps at 12 volts, with a weight of 5.732 kg, so it is worth comparing both the electrical rating and the physical mounting style against the unit being replaced.

The part number V20-13-40380 is the most reliable reference for matching. That is especially important on alternators, where 12V systems, 90A output, internal regulation, and the twin leg mount all need to line up with the vehicle application and the existing hardware.

Key Features

• New alternator, not remanufactured
• 12V system with 90A charge current
• Internal regulator type
• Twin leg alternator mount
• VEMO branded unit
• One year warranty

Specifications

• Part number: V20-13-40380
• Brand: VEMO
• Product type: Alternator
• Voltage: 12V
• Charge current: 90A
• Power rating: 90 amp
• Regulator type: Internal
• Alternator mount: Twin leg

Fitment guidance

• Fitment information supplied includes BMW, BMW 3 and BMW Z3 references.
• BMW 3 applications are shown across model years 1990 through 2000 in the supplied fitment preview.
• Because alternators can vary by engine, charging system and mounting style, confirm the part number V20-13-40380 against the existing unit before purchase.
• Use the current alternator’s regulator type, mount style and electrical rating as part of your check, not just the make and model name.

Application and Buying Notes

When comparing this alternator, start with the core identifiers: V20-13-40380, 12V, 90A and internal regulator. Those details are the most useful checkpoints for confirming whether the unit matches what is already fitted to the vehicle. The twin leg mount also needs to be checked against the original alternator hardware.

The listed weight is 5.732 kg, which is another practical reference when comparing replacements. If the alternator you are replacing has a different mount style, regulator arrangement or output rating, do not assume the same part will interchange without checking the application carefully.

Fitment references are provided for BMW, BMW 3 and BMW Z3, with BMW 3 model years shown from 1990 to 2000 in the preview. Even so, alternator fitment can depend on the exact vehicle specification, so the safest approach is to match the part number and confirm the installation details on the vehicle before ordering.

This is a new alternator supplied under the VEMO brand, and it is described as designed to meet OE performance with quality design and engineering. That said, the correct fit still depends on the vehicle’s charging system and mounting configuration, so the vehicle identification details and the removed unit should be checked side by side.

If you are buying to replace a failed alternator, compare the mounting ears, electrical plug arrangement and output rating with the original unit. These checks help avoid ordering the wrong part when multiple alternators may have been used across similar models or years.

The one year warranty provides a useful level of purchase confidence, but warranty cover does not replace fitment verification. Confirming the part number V20-13-40380, the 12V system, the 90A output and the twin leg mount remains the most reliable way to keep the order on track.

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 V20-13-40380 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 One Year, Regulator Type Internal, Alternator Mount Twin Leg, Alternator Charge Current [A] 90, Product Group 2 ALTERNATORS, Part No. V20-13-40380, Brand VEMO.

Additional published details for cross-checking include Description Vemo Alternator 12V 90A, Power Rating (Amp) 90, Voltage 12, New / Reman. New, Weight 5.732kg, Product Group 1 ROTATING ELECTRICAL.

Vemo Alternator 12V 90A. Part number V20-13-40380 should be checked first. Listed voltage is 12. Listed output rating is 90. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is Internal. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number V20-13-40380, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include BMW 3, BMW 3 1990, BMW 3 1991, BMW 3 1992. 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 fitment using part number V20-13-40380 and the vehicle’s application details, including 12V system, 90A output, internal regulator and twin leg mount, before purchasing.

FAQ

What is the part number for this alternator?

The part number is V20-13-40380.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does it have?

It is a 12V alternator with a 90A charge current and 90 amp power rating.

Does it have an internal or external regulator?

It has an internal regulator.

What type of mount does it use?

It is listed with a twin leg alternator mount.

What fitment information is supplied?

Supplied fitment references include BMW, BMW 3 and BMW Z3, with BMW 3 applications shown across model years 1990 to 2000 in the preview. The part number should still be confirmed against the vehicle before purchase.