OEX Alternator 12V 105A Bosch Style BXA4018

The OEX Alternator BXA4018 is a new 12V unit rated at 105A, built in a Bosch style with a pad mount and internal regulator. It suits Bosch applications and uses a 6 groove pulley with a 55mm outside diameter, so matching the mounting style and belt setup is an important part of checking it before purchase.

Mounting dimensions are specific on this alternator: 40mm inside mounting legs, 8mm pivot hole diameter, 8mm adjusting hole diameter, and 146mm mount centre to centre. Those measurements matter when you are comparing against the original unit, particularly on vehicles where the alternator location and bracket layout leave little room for variation.

This unit is listed as OEX part number BXA4018 and has a power rating of 105 amps. It is a rotating electrical component supplied as each, with a listed weight of 6.42kg. For buyers replacing a Bosch-style alternator, the combination of voltage, amperage, mount type, and pulley section should be checked carefully against the existing unit.

OEX states that its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with factories that are ISO9001 certified to support engineering, testing, and quality control procedures. The alternator is backed by a 3 year passenger / 1 year commercial warranty, which gives a clear commercial context for private and trade use.

Key Features

• 12V alternator with 105A output
• Bosch style, suitable for Bosch applications
• Internal regulator type
• Pad mount design
• 6 groove pulley, 55mm outside diameter
• New unit, supplied each

Specifications

• Voltage: 12V
• Power rating: 105A
• Type: Alternator
• Brand: OEX
• Part No.: BXA4018
• Suits unit make: Bosch
• Alternator mount: Pad
• Regulator type: Internal

Known fitment references

• Audi A4
• Audi A6
• Mercedes-Benz CLK
• Mercedes-Benz Sprinter 3-T
• Mercedes-Benz Sprinter 5-T
• Renault Clio
• Renault Grand Scénic
• Renault Laguna

Application and Buying Notes

Before ordering, compare the part number BXA4018 and the Bosch-style pad mount against the alternator already fitted to the vehicle. The practical checks here are the 12V system, 105A output, internal regulator, and the 6 groove pulley with a 55mm outside diameter, because those details determine whether the unit matches the existing electrical and belt arrangement.

The listed mounting dimensions are important on this model: 40mm inside mounting legs, 8mm pivot hole diameter, 8mm adjusting hole diameter, and 146mm mount centre to centre. If any of those measurements differ from the original alternator or bracket spacing, the part should be rechecked before fitment. That is especially relevant where the alternator sits tightly within the engine bay and bracket clearance is limited.

The warranty is 3 years for passenger use and 1 year for commercial use, so the intended application matters when you are comparing options. Weight is listed at 6.42kg, and the unit is supplied new rather than remanufactured. If you are replacing a Bosch alternator on an Audi, Mercedes-Benz, or Renault application, use the vehicle details together with the original unit measurements to confirm the correct match.

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 BXA4018 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 40mm, Pivot Hole Diameter 8, Pulley Outside Diameter 55mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 146mm, Weight 6.42kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXA4018, Brand OEX, Description OEX Alternator 12V 105A Bosch Style, Adjusting Hole Diameter 8, Pin Code IR125, Power Rating (Amp) 105, Pulley Section 6 Groove, Suits Unit Make Bosch, Alternator Mount Pad.

OEX Alternator 12V 105A Bosch Style. Part number BXA4018 should be checked first. Listed voltage is 12. Listed output rating is 105. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. 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 BXA4018, 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 105 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include AUDI A4, AUDI A4 1996, AUDI A4 1997, AUDI A4 1998, MERCEDES-BENZ CLK, 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 fitment using part number BXA4018, the Bosch-style pad mount, the 12V 105A specification, and the measured mounting and pulley details before ordering. The fitment references listed here are guidance only and should be checked against the vehicle’s existing alternator and application details.

FAQ

What is the part number for this alternator?

The listed part number is BXA4018.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and amperage does it have?

It is a 12V alternator with a 105A power rating.

What type of regulator does it use?

The regulator type is internal.

What pulley does it have?

It uses a 6 groove pulley with a 55mm outside diameter.

What should I check before buying?

Check the part number BXA4018, the Bosch-style pad mount, the 12V and 105A rating, and the mounting measurements: 40mm inside mounting legs, 8mm pivot and adjusting holes, and 146mm mount centre to centre.