OEX Alternator 12V 60A Denso Style DXA4121

The OEX Alternator 12V 60A Denso Style is a new rotating electrical unit with a 12 volt output and 60 amp power rating. It carries part number DXA4121 and is listed with a Denso-style fitment profile, so it is intended for applications that match the unit make, mounting layout, pulley setup and regulator type shown here.

This alternator uses a single leg mount with 24mm mount leg thickness, 143mm mount centre-to-centre spacing and an M8x1.25 adjusting hole. It also has a 4 groove pulley with a 52mm outside diameter, which are the sorts of details that matter when comparing the replacement unit against the one already on the vehicle.

A keyed internal regulator is fitted, and the unit is supplied as new rather than remanufactured. At 3.04kg, it is a compact alternator for the intended application, but the correct choice still depends on matching the physical mounting points and electrical specification rather than appearance alone.

Key Features

• 12V alternator with 60A output
• Denso-style unit make
• Single leg alternator mount
• Internal regulator fitted
• 4 groove pulley
• New unit

Specifications

• Voltage: 12V
• Power rating: 60A
• Part No.: DXA4121
• Unit of measure: Each
• Mount leg thickness: 24mm
• Mount centre to centre: 143mm
• Adjusting hole diameter: M8x1.25
• Pulley section: 4 groove

Confirmed fitment guidance

• Daihatsu Charade
• Daihatsu Cuore
• Daihatsu Handi
• Daihatsu Sirion

Application and Buying Notes

Before ordering, compare the alternator on the vehicle with the key identifiers here: DXA4121, 12V, 60A, Denso style, single leg mount and internal regulator. Those details should line up with the replacement unit already fitted, because alternators with similar housings can still differ in mount spacing, pulley section or regulator type.

The mounting measurements are important on this unit. Check the 24mm mount leg thickness, 143mm centre-to-centre mount spacing and M8x1.25 adjusting hole against the old alternator or the vehicle’s mounting bracket. If any of those points differ, the alternator may not bolt up correctly even if the electrical rating looks suitable.

The pulley details also need attention. This alternator has a 4 groove pulley with a 52mm outside diameter, so the belt profile and belt alignment should be checked carefully. A pulley mismatch can create belt noise, charging issues or poor belt tracking, so it is worth confirming before fitting.

OEX lists this alternator as fitting selected Daihatsu applications, including Charade, Cuore, Handi and Sirion. Vehicle listings can still vary by build date, engine arrangement and charging system configuration, so the safest approach is to match the part number and the physical specifications to the unit being replaced.

If the existing alternator has a different regulator type, mount style or pulley section, do not assume this unit will be interchangeable. The best result comes from confirming the old part, checking the vehicle application, and comparing the listed measurements before you place the order.

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 DXA4121 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 24mm, Power Rating (Amp) 60, Pulley Section 4 Groove, Suits Unit Make Denso, Alternator Mount Single Leg, Mount Cnt to Cnt 143mm, Weight 3.04kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4121, Brand OEX, Description OEX Alternator 12V 60A Denso Style, Adjusting Hole Diameter M8x1.25, Pin Code IR17, Pulley Outside Diameter 52mm, Regulator Type Internal, Voltage 12, Item Type Alternator.

OEX Alternator 12V 60A Denso Style. Part number DXA4121 should be checked first. Listed voltage is 12. Listed output rating is 60. 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 4 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4121, 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 60 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include DAIHATSU CHARADE, DAIHATSU CHARADE 2003, DAIHATSU CHARADE 2004, DAIHATSU CHARADE 2005. 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 matching part number DXA4121, Denso-style application details, mount measurements and pulley specification against the alternator already fitted to the vehicle before purchase.

FAQ

Is this alternator new or remanufactured?

This alternator is listed as new, not remanufactured.

What is the voltage and output rating?

It is a 12V alternator with a 60A power rating.

What part number should I check against my current unit?

The listed part number is DXA4121.

What mounting style does this alternator use?

It uses a single leg mount with 24mm mount leg thickness and 143mm mount centre-to-centre spacing.

What pulley setup does it have?

It has a 4 groove pulley with a 52mm outside diameter.

Which vehicles are shown in the fitment information?

The fitment information includes Daihatsu Charade, Cuore, Handi and Sirion. Final confirmation should still be made against the part number and mounting details.