Alternator 12V 90A Valeo Style ALT9258

This is a new 12V 90A alternator in Valeo style, identified as part number ALT9258. It is listed with an internal regulator, twin leg alternator mount, 6 groove pulley, and a "W" terminal, so the electrical and mounting details should be checked carefully before purchase.

The unit is supplied as each, weighs 6.06kg, and uses a 49mm pulley outside diameter with 60mm inside mounting legs. The mount centre to centre measurement is 148mm, with an 8 / M8 pivot hole diameter and a 9mm adjusting hole diameter.

For buyers replacing an existing Valeo unit, the key match points are the 12V system, 90 amp output, internal regulator, and the stated mounting and pulley configuration. Those details matter just as much as the part number when confirming a correct replacement.

AUTO ELECTRICS AUST lists this alternator under rotating electrical parts and notes a 3 year passenger / 1 year commercial warranty. That warranty period is useful context, but the vehicle application and physical fit still need to be checked against the existing alternator and vehicle setup.

Key Features

• 12V alternator with 90 amp output
• Valeo style replacement
• Internal regulator
• Twin leg alternator mount
• 6 groove pulley
• Has "W" terminal

Specifications

• Part No.: ALT9258
• Voltage: 12V
• Power rating: 90A
• New / remanufactured: New
• Suits unit make: Valeo
• Pulley outside diameter: 49mm
• Pulley section: 6 groove
• Inside mounting legs: 60mm

Fitment guidance

• Supported fitment references include Audi A3.
• Supported fitment references include Seat Ibiza and Seat Toledo.
• Supported fitment references include Volkswagen New Beetle.
• Supported fitment references also mention Volkswagen Transporter and Transporter / Caravelle.
• Sample application years shown include Audi A3 1997 to 2003, Seat Ibiza 1995 to 1997, Seat Toledo 1995 to 1997, and Volkswagen New Beetle 1998 to 2008.

Application and Buying Notes

The safest way to confirm this alternator is by matching part number ALT9258 with the existing unit and then checking the mounting and electrical details. The important physical checks here are the twin leg mount, 148mm mount centre to centre, 60mm inside mounting legs, 8 / M8 pivot hole, 9mm adjusting hole, and 49mm 6 groove pulley.

Because this alternator is listed as Valeo style and suits Valeo units, it is best matched against the original alternator rather than the vehicle alone. Even within the same model range, pulley type, mount arrangement, regulator style, and terminal layout can vary, so the presence of a "W" terminal should be confirmed on the vehicle before ordering.

The 12V and 90A rating suit a conventional 12 volt charging system, but output alone does not confirm fitment. Make sure the belt type is 6 groove and that the mounting points line up with your existing alternator and bracket setup before installing.

If the original alternator is missing or unreadable, compare the current bracket spacing and terminal arrangement closely. The listed weight of 6.06kg and the stated dimensions can help when comparing replacement units, especially where Valeo-pattern alternators may look similar but differ in details.

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 ALT9258 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 3yr Passenger 1yr Commercial, Inside Mounting Legs 60mm, Pivot Hole Diameter 8 / M8, Pulley Outside Diameter 49mm, Regulator Type Internal, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. ALT9258, Brand AUTO ELECTRICS AUST, Description Alternator 12V 90A Valeo Style, Adjusting Hole Diameter 9, Pin Code IR139, Power Rating (Amp) 90, Pulley Section 6 Groove, Suits Unit Make Valeo.

Alternator 12V 90A Valeo Style. Part number ALT9258 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. 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 ALT9258, 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 AUDI A3, AUDI A3 1997, AUDI A3 1998, AUDI A3 1999, SEAT IBIZA, SEAT IBIZA 1995. 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.

The listed warranty is 3yr Passenger 1yr Commercial. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment using part number ALT9258, the Valeo-style application, and the listed mounting, pulley, regulator, and terminal details before purchase.

FAQ

Is this alternator new or reconditioned?

It is listed as new, not remanufactured.

What is the output of this alternator?

The alternator is rated at 90 amps on a 12V system.

Does it have an internal regulator?

Yes, the regulator type is listed as internal.

What pulley does it use?

It has a 6 groove pulley with a 49mm outside diameter.

What vehicles are referenced for fitment?

Fitment references include Audi A3, Seat Ibiza, Seat Toledo, Volkswagen New Beetle, and Volkswagen Transporter / Caravelle.

What should I check before buying?

Check part number ALT9258, the Valeo unit make, the twin leg mount, 148mm mount centre to centre, 60mm inside mounting legs, 8 / M8 pivot hole, 9mm adjusting hole, and the "W" terminal.