OEX Alternator 12V 160A Denso Style DXA4034

The OEX Alternator 12V 160A Denso Style, part number DXA4034, is a new alternator for 12-volt applications and is supplied as each unit. It is listed as a Denso-style alternator with a 160 amp power rating, twin leg alternator mount, and internal regulator, so it suits buyers needing those exact configuration details rather than a generic replacement.

Key physical points matter here: the inside mounting legs measure 45mm, the mount centre to centre is 123mm, the pivot hole diameter is M10 x 1.25, and the adjusting hole diameter is M8 x 1.25. The pulley is a 7 groove design with a 55mm outside diameter, and the unit weight is 5.82kg.

The alternator is described as being for Denso units, and the note states the option offered contains a voltage regulator with RLO terminal. A replacement pulley to suit OAP010 is also noted. Those details are important when comparing the part against the original unit in the vehicle, especially where pulley style and terminal arrangement must match exactly.

Key Features

• New alternator, supplied each
• 12V, 160A output
• Denso style replacement
• Internal regulator
• Twin leg alternator mount
• 7 groove pulley, 55mm outside diameter

Specifications

• Part No.: DXA4034
• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Power rating: 160 amp
• New / Reman.: New
• Regulator type: Internal
• Alternator mount: Twin leg

Fitment guidance provided

• Toyota Alphard
• Toyota Alphard / Vellfire
• Toyota Avensis Verso
• Toyota Noah/Voxy
• Toyota Tarago
• Toyota applications are listed across multiple model years for Alphard and Alphard / Vellfire

Application and Buying Notes

Before ordering, compare the existing alternator against part number DXA4034 and check the mounting layout carefully. The listed dimensions are specific: 45mm inside mounting legs, 123mm mount centre to centre, M10 x 1.25 pivot hole, and M8 x 1.25 adjusting hole. Those measurements are the practical checkpoints that help confirm whether the unit will physically align with the engine brackets and adjuster arrangement.

The pulley and electrical setup also need to match the original unit. This alternator is a 12V, 160A, internal regulator design with a 7 groove pulley and 55mm outside diameter. The note also mentions a voltage regulator with an RLO terminal and a replacement pulley to suit OAP010, so it is worth checking the terminal arrangement and pulley type on the vehicle before fitting.

If you are replacing a Denso-style alternator, confirm the original unit’s shape, mounting ear spacing, pulley section, and connector details rather than relying on appearance alone. Alternators can look similar while differing in the mounting leg width, bolt sizes, or regulator configuration. The 5.82kg weight and the twin leg mount are useful reference points when comparing units side by side.

The warranty listed is 3 years for passenger use and 1 year for commercial use. That warranty position is useful, but it does not replace a fitment check. For best results, compare the vehicle application, the old alternator part number if available, and the physical measurements before purchase.

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 DXA4034 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 45mm, Pivot Hole Diameter M10 x 1.25, Pulley Outside Diameter 55mm, 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. DXA4034, Brand OEX, Description OEX Alternator 12V 160A Denso Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR116, Power Rating (Amp) 160, Pulley Section 7 Groove, Suits Unit Make Denso.

OEX Alternator 12V 160A Denso Style. Part number DXA4034 should be checked first. Listed voltage is 12. Listed output rating is 160. 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 DXA4034, 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 160 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include TOYOTA ALPHARD, TOYOTA ALPHARD / VELLFIRE, TOYOTA ALPHARD / VELLFIRE 2008, TOYOTA ALPHARD / VELLFIRE 2009. 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 compatibility by matching part number DXA4034, the Denso-style application, and the listed mounting, pulley, and regulator details against the vehicle’s existing alternator before ordering.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What is the output rating?

The alternator is rated at 160 amp and is a 12V unit.

What type of regulator does it use?

It uses an internal regulator. The note also states the option offered contains a voltage regulator with RLO terminal.

What pulley details are listed?

The pulley is listed as 7 groove with a 55mm outside diameter. A replacement pulley to suit OAP010 is also noted.

Which mounting measurements should be checked?

Check the 45mm inside mounting legs, 123mm mount centre to centre, M10 x 1.25 pivot hole, and M8 x 1.25 adjusting hole.

Which vehicles are listed in the fitment information?

The fitment information lists Toyota Alphard, Toyota Alphard / Vellfire, Toyota Avensis Verso, Toyota Noah/Voxy, and Toyota Tarago, with Toyota applications shown across multiple Alphard and Alphard / Vellfire model years.