OEX Alternator 12V 180A Denso Style DXA4169

The OEX DXA4169 is a new 12V, 180A alternator in a Denso style configuration, listed as an alternator passenger unit. It is specified as a Holden LS1 upgrade alternator and uses Plug Code IR49, with battery sense on the brown wire and warning light on the blue wire.

This unit is built with an internal regulator, a 6 groove pulley, and a single leg alternator mount. Key physical measurements include a 51mm pulley outside diameter, 51mm mount leg thickness, 138mm mount centre to centre, and 10mm pivot and adjusting hole diameters.

The listed power rating is 180 amp and the note advises that the amp rating is rated at operating temperature. For identification and ordering, the part number is DXA4169 and the OEM number field is shown as LS1.

Key Features

• New alternator, not remanufactured
• 12V electrical system
• 180A output rating
• Denso style design
• Internal regulator
• 6 groove pulley

Specifications

• Brand: OEX
• Part No.: DXA4169
• Voltage: 12
• Power Rating (Amp): 180
• Type: Alternator Passenger
• New / Reman.: New
• Regulator Type: Internal
• Alternator Mount: Single Leg

Fitment guidance

• Holden
• Holden Commodore
• Holden Commodore 2000
• Holden Commodore 2001
• Holden Commodore 2002

Application and Buying Notes

Before ordering, compare the part number DXA4169, the plug code IR49, and the physical mounting measurements against the alternator you are replacing. The listed single leg mount, 138mm mount centre to centre, and 10mm pivot and adjusting holes are the main checks for a correct physical match.

This alternator is described as a Holden LS1 upgrade alternator, so the application needs to be checked carefully against the vehicle’s charging setup and wiring. The note identifies battery sense on the brown wire and warning light on the blue wire, which makes connector and wire identification important during installation.

The 180A output is rated at operating temperature, so the figure should be read in the context of the unit’s working conditions rather than as a blanket claim for every situation. If the vehicle is fitted with a different pulley arrangement, mounting ear size, or plug code, those details need to be confirmed before purchase.

The warranty shown is 3 years for passenger use and 1 year for commercial use. That warranty class should be considered alongside how the vehicle is used, because passenger and commercial applications are treated differently in the listing.

If you are cross-checking fitment, use the holden application detail together with the alternator type, mount style, and IR49 plug code rather than relying on the model name alone. Matching the electrical connector and the mounting dimensions is just as important as matching the badge or family name.

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 DXA4169 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 PASSENGER, Unit of Measure EACH, Warranty 3yr Passenger 1yr Commercial, Mount Leg Thickness 51mm, Pivot Hole Diameter 10, Pulley Outside Diameter 51.5mm, Regulator Type Internal, Note AMP Rating Rated at Operating Temperature, Holden LS1 Upgrade Alternator, Plug Code IR49. Battery Sense (brown wire) and Warning Light (blue wire), Mount Cnt to Cnt 138mm, OEM Number LS1.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4169, Brand OEX, Description OEX Alternator 12V 180A Denso Style, Adjusting Hole Diameter 10, Pin Code IR49, Power Rating (Amp) 180, Pulley Section 6 Groove, Voltage 12, Alternator Mount Single Leg.

OEX Alternator 12V 180A Denso Style. Part number DXA4169 should be checked first. Listed voltage is 12. Listed output rating is 180. 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4169, 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 checking part number DXA4169, plug code IR49, mount style, and the measured dimensions against the existing alternator before ordering. Vehicle application should always be verified against the exact charging system and wiring arrangement.

FAQ

What is the part number for this alternator?

The listed part number is DXA4169. For this listing, part number DXA4169 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include HOLDEN COMMODORE, HOLDEN COMMODORE 2000, HOLDEN COMMODORE 2001. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 180A power rating. For this listing, part number DXA4169 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include HOLDEN COMMODORE, HOLDEN COMMODORE 2000, HOLDEN COMMODORE 2001. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

It is listed as new. For this listing, part number DXA4169 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include HOLDEN COMMODORE, HOLDEN COMMODORE 2000, HOLDEN COMMODORE 2001. These details should still be checked against the original unit before ordering.

What plug code does it use?

The plug code is IR49. For this listing, part number DXA4169 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include HOLDEN COMMODORE, HOLDEN COMMODORE 2000, HOLDEN COMMODORE 2001. These details should still be checked against the original unit before ordering.

What mounting and pulley details are listed?

It has a single leg mount, 6 groove pulley, 51.5mm pulley outside diameter, 51mm mount leg thickness, 138mm mount centre to centre, and 10mm pivot and adjusting holes. For this listing, part number DXA4169 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include HOLDEN COMMODORE, HOLDEN COMMODORE 2000, HOLDEN COMMODORE 2001. These details should still be checked against the original unit before ordering.

What warranty is shown?

The warranty is listed as 3 years for passenger use and 1 year for commercial use. For this listing, part number DXA4169 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include HOLDEN COMMODORE, HOLDEN COMMODORE 2000, HOLDEN COMMODORE 2001. These details should still be checked against the original unit before ordering.