OEX Alternator 12V 70A Denso Style DXA427

The OEX Alternator DXA427 is a new 12V, 70A unit in Denso style with an internal regulator and a 7 groove pulley. It is listed as suitable for Denso applications and is supplied as an each unit, with a mount leg thickness of 58mm and a pivot hole diameter of 10mm.

This alternator weighs 4.34kg and uses a single leg alternator mount with a mount centre-to-centre measurement of 165mm. The adjusting hole is M8x1.25, and the pulley outside diameter is 60mm, so the physical mounting and drive setup need to be checked carefully before purchase or installation.

OEX identifies this unit as part number DXA427, with a pin code of IR7 and a power rating of 70 amps. The warranty is listed as 3 years for passenger use and 1 year for commercial use, which is useful to confirm against the way the vehicle or machine is being used.

Key Features

• New alternator, not remanufactured
• 12V output with 70A power rating
• Denso style unit
• Internal regulator
• 7 groove pulley, 60mm outside diameter
• Single leg mount

Specifications

• Brand: OEX
• Product type: Alternator
• Unit of measure: Each
• Voltage: 12V
• Power rating: 70A
• Part No.: DXA427
• Suits unit make: Denso
• Regulator type: Internal

Verified fitment applications

• DAIHATSU ROCKY
• TOYOTA CELICA
• TOYOTA CRESSIDA
• TOYOTA CROWN
• TOYOTA DYNA
• TOYOTA DYNA 200
• TOYOTA SPACIA
• TOYOTA SUPRA

Application and Buying Notes

Before ordering, match the part number DXA427 and confirm the alternator is a Denso style replacement with an internal regulator. The physical checks matter here: 12V system voltage, 70A output, 7 groove pulley, 60mm pulley outside diameter, 58mm mount leg thickness, and the 165mm mount centre-to-centre measurement all need to align with the existing unit.

The listed mounting details are specific enough to rule out many incorrect substitutes. Check the single leg alternator mount, the 10mm pivot hole, and the M8x1.25 adjusting hole against the vehicle or machine currently fitted, especially where alternators may have been changed previously and the brackets or pulley arrangement no longer match factory configuration.

The warranty is listed differently for passenger and commercial use, at 3 years and 1 year respectively, so it is worth confirming how the vehicle is used before purchase. If the application is a commercial machine or work vehicle, the commercial warranty period is the relevant one, and the buyer should make sure the installation and operating conditions suit the alternator's 70A rating.

This alternator is supplied new and sold as an each unit, so it is intended as a direct replacement-style component rather than a repair kit. We recommend comparing the existing unit’s dimensions, regulator type, and drive belt setup before fitment, because matching the electrical output alone is not enough to confirm compatibility.

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 DXA427 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, Mount Leg Thickness 58mm, Pivot Hole Diameter 10, Pulley Outside Diameter 60mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 165mm, Weight 4.34kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA427, Brand OEX, Description OEX Alternator 12V 70A Denso Style, Adjusting Hole Diameter M8x1.25, Pin Code IR7, Power Rating (Amp) 70, Pulley Section 7 Groove, Suits Unit Make Denso, Alternator Mount Single Leg.

OEX Alternator 12V 70A Denso Style. Part number DXA427 should be checked first. Listed voltage is 12. Listed output rating is 70. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single 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 DXA427, 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 70 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include DAIHATSU ROCKY, DAIHATSU ROCKY 1984, DAIHATSU ROCKY 1985, DAIHATSU ROCKY 1986, JOHN DEERE 5420N, JOHN DEERE 5420N 2002. 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 by comparing part number DXA427, the Denso-style application, and all listed mounting and pulley measurements against the unit being replaced. Do not rely on vehicle make alone, as the same model range can use different alternators and pulley configurations.

FAQ

What is the part number for this alternator?

The listed part number is DXA427.

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 70A power rating.

Does it have an internal regulator?

Yes. The regulator type is listed as internal.

What pulley setup does it use?

It has a 7 groove pulley with a 60mm outside diameter.

How should I confirm fitment before buying?

Check the part number DXA427, the Denso-style application, and the listed dimensions: 58mm mount leg thickness, 10mm pivot hole, M8x1.25 adjusting hole, 165mm mount centre-to-centre, and 60mm pulley outside diameter.