OEX Alternator 12V 105A Denso Style DXA4146

The OEX Alternator DXA4146 is a new 12V, 105A unit in Denso style, supplied as an alternator each and identified with pin code IR204. It suits a Denso unit make and uses a twin leg alternator mount, so matching the mounting arrangement and electrical layout to the original unit is essential before ordering.

Key measurements include 38mm inside mounting legs, an M8x1.25 / 9 pivot hole diameter, an 8.5 adjusting hole diameter, a 131mm mount centre-to-centre measurement, and a 60mm pulley outside diameter. The pulley is 7 groove and the regulator type is internal, which are important checks when comparing against the fitted alternator.

This alternator is listed as new and carries a 3yr Passenger / 1yr Commercial warranty. It weighs 5.62kg, which can be useful when comparing against the unit being replaced, especially where brackets, pulley alignment, or the overall alternator style need to match closely.

OEX states that its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with ISO9001 certified factories supporting engineering, testing, and quality control procedures. For buyers, the practical value is in matching the physical and electrical details first, then confirming the part number DXA4146 against the required application.

Key Features

• 12V alternator with 105A power rating
• Denso style unit, suitable for Denso applications
• Internal regulator type
• Twin leg alternator mount
• 7 groove pulley, 60mm outside diameter
• New unit, sold individually

Specifications

• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Power rating: 105A
• Part No.: DXA4146
• Suits unit make: Denso
• Alternator mount: Twin leg
• Regulator type: Internal

Application and Buying Notes

Before buying, compare the part number DXA4146, the Denso style designation, and the pin code IR204 with the alternator currently fitted to the vehicle. Those identifiers are the most useful starting point when the application list is not supplied, because they help separate similar-looking alternators that differ in mounting, plug arrangement, or pulley style.

Check the twin leg mounting arrangement carefully. The listed inside mounting legs are 38mm, the mount centre-to-centre measurement is 131mm, and the pivot hole diameter is M8x1.25 / 9. If any of those dimensions differ from the original unit, the alternator may not install correctly without modification.

The pulley details matter just as much as the electrical rating. This unit is 12V with a 105A output and a 7 groove pulley with a 60mm outside diameter. Matching groove count and pulley size helps avoid belt alignment issues and prevents the need to transfer parts that may not be suitable for reuse.

Because the regulator is internal, the vehicle’s charging system must be matched to that configuration. Internal regulation is common, but it is still important to confirm that the original alternator uses the same style before ordering, especially where wiring or connector layout can vary between applications.

The alternator is a new unit and weighs 5.62kg. That weight can be a useful comparison point against the removed unit, particularly where there are different case sizes within the same family. If the original alternator is available, compare the mounting ears, pulley, and overall shape alongside the measurements listed here.

Warranty coverage is listed as 3yr Passenger / 1yr Commercial. That is helpful for expected use, but it does not replace fitment checking. The safest approach is to confirm the original alternator’s part number, the mounting geometry, and the pulley specification 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 DXA4146 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 38mm, Pivot Hole Diameter M8x1.25 / 9, Pulley Outside Diameter 60mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 131mm, Weight 5.62kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4146, Brand OEX, Description OEX Alternator 12V 105A Denso Style, Adjusting Hole Diameter 8.5, Pin Code IR204, Power Rating (Amp) 105, Pulley Section 7 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 105A Denso Style. Part number DXA4146 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 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 DXA4146, 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.

Compatibility note: Confirm fitment by matching part number DXA4146, Denso style application details, pin code IR204, and the listed mounting and pulley measurements against the vehicle’s original alternator before ordering.

FAQ

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 105A power rating.

What part number should I match?

The listed part number is DXA4146.

What type of regulator does it use?

It uses an internal regulator.

What pulley specification is listed?

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

What should I check before ordering?

Match the Denso style application, part number DXA4146, pin code IR204, twin leg mount, and the listed measurements including 38mm inside mounting legs and 131mm mount centre-to-centre.