OEX Alternator 12V 130A Denso Style DXA4000

The OEX Alternator DXA4000 is a new 12V, 130A unit built in Denso style for applications that use a Denso alternator fitment. It is supplied with an internal regulator, a 7 groove pulley, and a twin leg alternator mount, so the physical mounting and pulley profile need to line up with the vehicle's original arrangement.

Key dimensions for checking suitability are an 11 / M10 pivot hole diameter, 10mm adjusting hole diameter, 43mm inside mounting legs, and 168mm centre to centre mounting distance. The pulley outside diameter is 52mm, and the unit weighs 6kg. Those measurements are the practical checkpoints to compare before ordering.

This alternator is rated at 130 amps at 12 volts and uses pin code IR115. The note supplied with the part also identifies different regulator terminal options, including a standard voltage regulator with S terminal, with separate part references for RLO terminal and single LIN terminal applications. That makes the terminal type an important part of the selection process.

OEX positions this range as sourced from original equipment manufacturers and aftermarket suppliers, with ISO9001 certified factories supporting engineering, testing, and quality control procedures. The product carries a 3 year passenger / 1 year commercial warranty, which is useful context for owners and workshops looking for a replacement alternator with clearly defined specifications.

Key Features

• New alternator, not remanufactured
• 12V electrical system
• 130A power rating
• Denso style unit
• Internal regulator
• 7 groove pulley

Specifications

• Brand: OEX
• Part No.: DXA4000
• Product type: Alternator
• Voltage: 12V
• Power rating: 130A
• New / Reman.: New
• Regulator type: Internal
• Suits unit make: Denso

Fitment guidance

• Toyota Hiace / Commuter
• Toyota Hiace
• Toyota Hilux
• Toyota Regius Ace

Application and Buying Notes

Before ordering, compare the part number DXA4000 with the alternator currently fitted to the vehicle and confirm the Denso style housing, because this unit is described as a Denso style alternator with a twin leg mount and internal regulator. The 12V system voltage and 130A output also need to match the vehicle's electrical requirements.

The mounting measurements are the most useful physical checks here: 43mm inside mounting legs, 11 / M10 pivot hole diameter, 10mm adjusting hole diameter, and 168mm centre to centre. If those dimensions do not align with the original unit, the alternator may not bolt up correctly even if the vehicle family appears similar.

Pulley details matter as well. This alternator uses a 52mm outside diameter pulley with a 7 groove section, so the belt profile must match the vehicle's original belt arrangement. If the belt groove count or pulley diameter is different, the alternator should not be treated as a direct substitute.

The regulator and terminal arrangement must be checked carefully. The supplied note states that this option contains a standard voltage regulator with S terminal, while separate references are listed for an RLO terminal unit and a single LIN terminal unit. That means the plug and regulation type should be confirmed against the existing alternator before fitting.

The fitment data provided references Toyota Hiace, Toyota Hiace / Commuter, Toyota Hilux, and Toyota Regius Ace applications. Even with those model groups listed, the safest way to buy is to verify the original alternator part number, the mounting dimensions, the pulley setup, and the terminal type together rather than relying on model name alone.

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 DXA4000 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 43mm, Pivot Hole Diameter 11 / M10, Pulley Outside Diameter 52mm, 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. DXA4000, Brand OEX, Description OEX Alternator 12V 130A Denso Style, Adjusting Hole Diameter 10, Pin Code IR115, Power Rating (Amp) 130, Pulley Section 7 Groove, Suits Unit Make Denso.

OEX Alternator 12V 130A Denso Style. Part number DXA4000 should be checked first. Listed voltage is 12. Listed output rating is 130. 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 7 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4000, 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.

Compatibility note: Confirm fitment by matching the part number DXA4000, the Denso style application, the 12V 130A specification, the twin leg mounting dimensions, the 7 groove pulley, and the regulator terminal type before purchase.

FAQ

Is this alternator new or remanufactured?

This is a new alternator, not a remanufactured unit.

What electrical rating does the alternator have?

It is rated at 12 volts and 130 amps.

What regulator type does it use?

The listed regulator type is internal. The note also states this option contains a standard voltage regulator with S terminal.

What pulley setup does it have?

It uses a 7 groove pulley with a 52mm outside diameter.

What mounting dimensions should be checked?

The key dimensions listed are 43mm inside mounting legs, 11 / M10 pivot hole diameter, 10mm adjusting hole diameter, and 168mm mounting centre to centre.

Which vehicles are mentioned in the fitment data?

The fitment data references Toyota Hiace, Toyota Hiace / Commuter, Toyota Hilux, and Toyota Regius Ace applications. The exact match should still be confirmed by part number, mounting, pulley, and terminal details.