OEX Alternator 12V 80A Denso Style DXA4165

The OEX Alternator DXA4165 is a 12V, 80A rotating electrical unit in Denso style, supplied new and sold as each. It uses an internal regulator and a 4 groove pulley, with a pulley outside diameter of 57.5mm for applications that match the listed drive arrangement.

Mounting and physical dimensions are important with this alternator. It has a twin leg alternator mount, 42mm inside mounting legs, a 160mm mount centre-to-centre measurement, an M10x1.25 / 11 pivot hole diameter, and an M8x1.25 adjusting hole diameter. Those details should be checked carefully against the original unit before ordering.

This unit is identified by part number DXA4165 and pin code IR115, with the stated suit as Denso. OEX lists the product as sourced from ISO certified factories and backed by a comprehensive nationwide warranty, with 3 years for passenger use and 1 year for commercial use.

Key Features

• 12V alternator with 80A output
• Denso style unit
• Internal regulator
• 4 groove pulley
• Twin leg alternator mount
• New unit, sold individually

Specifications

• Brand: OEX
• Product type: Alternator
• Power rating: 80A
• Voltage: 12V
• New / Reman: New
• Unit of measure: Each
• Part No.: DXA4165
• Pin Code: IR115

Fitment guidance

• Vehicle fitment data provided: Toyota Yaris
• Application years shown in the fitment data include 2005 to 2015
• Fitment is not fully verified here by engine or exact model code
• Check the original alternator and mounting dimensions before purchase

Application and Buying Notes

When comparing this alternator to the unit already in the vehicle, start with the part number DXA4165 and the physical mounting details. The twin leg mount, 42mm inside mounting legs, 160mm centre-to-centre mount measurement, and the M10x1.25 / 11 pivot hole are the clearest checks to confirm before fitting.

The pulley specification matters just as much as the electrical rating. This unit is rated at 12V and 80A, and it uses a 4 groove pulley with a 57.5mm outside diameter. If the belt arrangement or pulley profile differs from the original alternator, the part may not be suitable even where the vehicle family appears similar.

The stated suit is Denso, so this is intended for applications that use that alternator style and matching mount pattern. The internal regulator and pin code IR115 are useful identifiers when comparing against the existing unit, especially where a vehicle may have more than one alternator option across different build dates or equipment levels.

Weight is listed at 4.2kg, which can be a useful reference when comparing replacement parts, but it should not be used on its own to confirm compatibility. For best results, match the part number, mounting style, pulley section, and hole sizes to the removed alternator before proceeding with installation.

OEX states this product is sourced from ISO certified factories and carries a 3 year passenger / 1 year commercial warranty. Warranty coverage is useful, but it does not replace the need to confirm fitment first, particularly on vehicles where alternator options can vary by engine, charging system, or accessory drive layout.

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 DXA4165 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 42mm, Pivot Hole Diameter M10x1.25 / 11, Pulley Outside Diameter 57.5mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 160mm, Weight 4.2kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4165, Brand OEX, Description OEX Alternator 12V 80A Denso Style, Adjusting Hole Diameter M8x1.25, Pin Code IR115, Power Rating (Amp) 80, Pulley Section 4 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 80A Denso Style. Part number DXA4165 should be checked first. Listed voltage is 12. Listed output rating is 80. 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 4 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4165, 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 80 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include TOYOTA YARIS, TOYOTA YARIS 2005, TOYOTA YARIS 2006, TOYOTA YARIS 2007. 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.

Compatibility note: Confirm fitment using part number DXA4165, the Denso style application, and the listed mounting and pulley dimensions before ordering. Do not rely on vehicle name alone, as the same model range can use different alternator configurations.

FAQ

What is the part number for this alternator?

The part number is DXA4165.

What is the electrical output of this alternator?

It is rated at 12V and 80A.

Is this a new or remanufactured alternator?

It is listed as new.

What pulley setup does it use?

It uses a 4 groove pulley with a 57.5mm outside diameter.

What mounting details are listed for this alternator?

The listed mounting details are a twin leg alternator mount, 42mm inside mounting legs, 160mm mount centre-to-centre, an M10x1.25 / 11 pivot hole diameter, and an M8x1.25 adjusting hole diameter.

What vehicle fitment information is provided?

The provided fitment data lists Toyota Yaris applications, with sample years from 2005 to 2015. Exact fitment should still be confirmed against the original alternator and the listed dimensions.