OEX Alternator 12V 110A Denso Style DXA4164

The OEX Alternator DXA4164 is a new 12V, 110A unit in a Denso style configuration, supplied as an alternator each. It uses an internal regulator, a 6 groove pulley with a 55mm outside diameter, and is listed with a twin leg alternator mount for applications that match those details.

Mounting dimensions are important with this alternator: inside mounting legs are 50mm, the pivot hole diameter is M10x1.25 / 11, the adjusting hole diameter is M8x1.25, and the mount centre to centre measurement is 175mm. Those figures are the key checks before ordering, especially where the original unit is being replaced.

This part is identified as OEX part number DXA4164 and suits Denso unit make applications. It is a new rotating electrical component with a listed weight of 5.74kg. The warranty stated is 3yr Passenger and 1yr Commercial, which gives a useful reference for passenger and commercial use where the listed application matches.

Key Features

• 12V alternator with 110A output
• Denso style unit
• Internal regulator
• 6 groove pulley
• Twin leg alternator mount
• New unit

Specifications

• Voltage: 12V
• Power rating: 110A
• Pulley outside diameter: 55mm
• Pulley section: 6 groove
• Inside mounting legs: 50mm
• Pivot hole diameter: M10x1.25 / 11
• Adjusting hole diameter: M8x1.25
• Mount centre to centre: 175mm

Fitment guidance

• Fitment data supplied points to Toyota Corolla applications, including Corolla 2006 through Corolla 2012.
• Always confirm the original alternator mount style, pulley type, and measured mounting dimensions before ordering.
• Use the part number DXA4164 as a primary identifier when matching against the vehicle’s original alternator.
• Check that the vehicle uses a 12V Denso style alternator with a twin leg mount and 6 groove pulley arrangement.

Application and Buying Notes

When checking this alternator against a vehicle, start with the hard measurements: 50mm inside mounting legs, 175mm mount centre to centre, M10x1.25 / 11 pivot hole diameter, and M8x1.25 adjusting hole diameter. Those dimensions are more reliable than a general visual match, particularly on Denso style replacements where bracket layout can vary.

The electrical rating is 12V and 110A, so this is suited to applications that need the same charging specification as the original unit. Matching voltage, output, pulley section, and regulator type is essential. In this case the alternator has an internal regulator and a 6 groove pulley, so those points should be checked against the vehicle and the removed part.

If you are replacing an existing alternator, compare the OE unit or the old part label with OEX part number DXA4164 before purchase. The listed weight is 5.74kg, which can help confirm you are comparing like for like. The warranty is 3yr Passenger and 1yr Commercial, but warranty cover should always be considered alongside correct fitment and installation.

For Toyota Corolla applications, the fitment preview supplied includes 2006 to 2012. That is a useful guide, but it is still important to confirm the exact engine and charging system details on the vehicle, because alternators can differ within the same model range. If the original unit does not match the Denso style, twin leg mount, and 6 groove pulley details, it should not be assumed compatible.

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 DXA4164 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 50mm, Pivot Hole Diameter M10x1.25 / 11, Pulley Outside Diameter 55mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 175mm, Weight 5.74kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4164, Brand OEX, Description OEX Alternator 12V 110A Denso Style, Adjusting Hole Diameter M8x1.25, Pin Code IR116, Power Rating (Amp) 110, Pulley Section 6 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 110A Denso Style. Part number DXA4164 should be checked first. Listed voltage is 12. Listed output rating is 110. 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4164, 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 110 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm fitment using OEX part number DXA4164, the Denso style alternator configuration, and the measured mounting and pulley details before ordering. Vehicle fitment should be checked against the original unit and application details, especially where Toyota Corolla listings are involved.

FAQ

What type of alternator is this?

It is an OEX alternator, new, 12V, 110A, and described as Denso style. It has an internal regulator and a twin leg mount.

What is the part number?

The listed part number is DXA4164.

What pulley does it use?

It has a 6 groove pulley with a 55mm outside diameter.

What mounting measurements are provided?

The listed measurements are 50mm inside mounting legs, M10x1.25 / 11 pivot hole diameter, M8x1.25 adjusting hole diameter, and 175mm mount centre to centre.

What vehicles are mentioned in the fitment guidance?

The supplied fitment preview points to Toyota Corolla applications, including Corolla 2006 through Corolla 2012.

What warranty is listed?

The warranty listed is 3yr Passenger and 1yr Commercial.