OEX Alternator 12V 130A Denso Style DXA4166

The OEX Alternator DXA4166 is a new 12V unit rated at 130A and built in a Denso style format. It is listed as an alternator for the rotating electrical system, with a 6 groove pulley, twin leg mount, and a 51mm inside mounting leg measurement.

This unit is supplied under the OEX brand and carries part number DXA4166. Key physical checks include a 174mm mount centre-to-centre measurement, M8x1.25 adjusting hole diameter, and a 55mm pulley outside diameter. Those dimensions are important when comparing it to the original unit already fitted to the vehicle.

The alternator is described as suitable for Denso applications and includes a dynamically balanced rotor. It is a new unit, sold each, and weighs 5.76kg. Warranty cover is listed as 3 years for passenger use and 1 year for commercial use, which is useful when matching the expected duty cycle of the vehicle.

Key Features

• New alternator, not remanufactured
• 12V output with 130A power rating
• Denso style unit
• Twin leg alternator mount
• 6 groove pulley
• Dynamically balanced rotor

Specifications

• Brand: OEX
• Part No.: DXA4166
• Type: Alternator
• Voltage: 12V
• Current output: 130A
• Unit of measure: Each
• Suits unit make: Denso
• Alternator mount: Twin leg

Verified fitment

• Toyota Noah/Voxy
• Toyota Noah/Voxy 2007
• Toyota Noah/Voxy 2008
• Toyota Noah/Voxy 2009
• Toyota Noah/Voxy 2010
• Toyota Noah/Voxy 2011
• Toyota Noah/Voxy 2012
• Toyota Noah/Voxy 2013

Application and Buying Notes

Before ordering, compare the vehicle’s existing alternator against the key identifiers for DXA4166: 12V, 130A, Denso style, twin leg mount, 51mm inside mounting legs, and 174mm mount centre-to-centre. These checks matter because alternators can look similar while differing in mounting shape, pulley arrangement, or regulator style.

The 6 groove pulley and 55mm pulley outside diameter should be matched carefully to the belt system already on the vehicle. If the belt profile or pulley size differs from the original part, the alternator may not align correctly even when the electrical rating is suitable.

A Denso style alternator does not mean every Denso application will fit without checking. The safest approach is to confirm the part number DXA4166, then compare the mounting legs, adjuster hole size of M8x1.25, and the listed application details against the vehicle already fitted. That is especially important when replacing a unit that has been changed previously.

The listed warranty is 3 years for passenger use and 1 year for commercial use. If the vehicle is used regularly for higher electrical demand or commercial duty, it is worth checking the charging system condition as a complete system, including battery condition, belt wear, wiring, and mounting hardware, before fitting a new alternator.

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 DXA4166 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 51mm, Power Rating (Amp) 130, Pulley Section 6 Groove, Voltage 12, Mount Cnt to Cnt 174mm, Weight 5.76kg, Product Group 1 ROTATING ELECTRICAL.

Additional published details for cross-checking include Part No. DXA4166, Brand OEX, Description OEX Alternator 12V 130A Denso Style, Adjusting Hole Diameter M8x1.25, Pin Code IR116, Pulley Outside Diameter 55mm, Suits Unit Make Denso, Alternator Mount Twin Leg, New / Reman. New.

OEX Alternator 12V 130A Denso Style. Part number DXA4166 should be checked first. Listed voltage is 12. Listed output rating is 130. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. 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 DXA4166, 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 130 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching part number DXA4166, the Denso style specification, and the listed mounting and pulley measurements against the vehicle’s existing alternator before purchase.

FAQ

What is the part number for this alternator?

The part number is DXA4166. For this listing, part number DXA4166 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include TOYOTA NOAH/VOXY, TOYOTA NOAH/VOXY 2007, TOYOTA NOAH/VOXY 2008. 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 130A power rating. For this listing, part number DXA4166 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include TOYOTA NOAH/VOXY, TOYOTA NOAH/VOXY 2007, TOYOTA NOAH/VOXY 2008. 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 DXA4166 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include TOYOTA NOAH/VOXY, TOYOTA NOAH/VOXY 2007, TOYOTA NOAH/VOXY 2008. These details should still be checked against the original unit before ordering.

What type of pulley does it use?

It has a 6 groove pulley with a 55mm pulley outside diameter. For this listing, part number DXA4166 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include TOYOTA NOAH/VOXY, TOYOTA NOAH/VOXY 2007, TOYOTA NOAH/VOXY 2008. These details should still be checked against the original unit before ordering.

What mounting details are listed?

The alternator uses a twin leg mount, with 51mm inside mounting legs, a 174mm mount centre-to-centre measurement, and an M8x1.25 adjusting hole diameter. For this listing, part number DXA4166 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include TOYOTA NOAH/VOXY, TOYOTA NOAH/VOXY 2007, TOYOTA NOAH/VOXY 2008. These details should still be checked against the original unit before ordering.

What vehicles are shown in the fitment data?

The provided fitment data lists Toyota Noah/Voxy applications, including 2007 through 2013 models. For this listing, part number DXA4166 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include TOYOTA NOAH/VOXY, TOYOTA NOAH/VOXY 2007, TOYOTA NOAH/VOXY 2008. These details should still be checked against the original unit before ordering.