OEX Alternator 12V 70A Denso Style DXA4163

The OEX Alternator DXA4163 is a new 12V, 70A unit built in a Denso style with a pad mount and internal regulator. It suits Denso applications and uses a 5 groove pulley with a 54mm outside diameter, so the mounting and drive setup need to match the vehicle before purchase.

This alternator is listed with mount centres of 154mm and mount centre to centre of 50mm, which are important checks when comparing against the existing unit. At 4.82kg, it is a compact rotating electrical component intended for direct replacement where the application matches.

OEX backs this alternator with a 3 year passenger / 1 year commercial warranty. The brand also states its products are sourced from ISO certified factories and from market leading original equipment manufacturers and aftermarket suppliers, which adds useful buying context when you are replacing a charging system component.

Key Features

• 12V alternator with 70A output
• New unit, not remanufactured
• Denso style with pad mount
• Internal regulator type
• 5 groove pulley arrangement
• Part number DXA4163

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: DXA4163
• Voltage: 12V
• Power rating: 70A
• Suits unit make: Denso
• Alternator mount: Pad
• Regulator type: Internal

Vehicle fitment guidance

• FIAT 500
• FIAT PUNTO
• FIAT RITMO
• FIAT 500 2007
• FIAT PUNTO 2006
• FIAT PUNTO 2007
• FIAT PUNTO 2008
• FIAT PUNTO 2009

Application and Buying Notes

The key compatibility checkpoints for this alternator are the part number DXA4163, the Denso-style body, the pad mount, and the 12V 70A specification. It also has a 5 groove pulley, 54mm pulley outside diameter, 154mm mount centres A, and 50mm mount centre to centre, so the existing alternator should be compared carefully before ordering.

If the vehicle uses a different mount style, pulley section, regulator arrangement, or physical spacing, this unit will not be the correct replacement even if the engine family appears similar. Alternators can look close across models, so matching the measurements and connector arrangement is just as important as matching the vehicle name.

The listed fitment references include FIAT 500, FIAT PUNTO and FIAT RITMO applications, including model references such as 2006 through 2010 for certain Punto and Ritmo entries. Treat those as application guidance only and confirm the exact vehicle against the existing alternator details and part number before fitting.

This is a new alternator, which is useful where a direct replacement is required rather than a rebuild. The 3 year passenger and 1 year commercial warranty provides a clear ownership reference, but warranty cover should always be read alongside correct installation and correct application selection.

When replacing a charging system component, it is worth checking the battery condition, belt condition and charging circuit before and after installation. A correctly matched alternator still depends on a sound drive belt, clean connections and a vehicle system that is free from underlying electrical faults.

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 DXA4163 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, Power Rating (Amp) 70, Pulley Section 5 Groove, Suits Unit Make Denso, Alternator Mount Pad, New / Reman. New, Product Group 2 ALTERNATORS.

Additional published details for cross-checking include Part No. DXA4163, Brand OEX, Description OEX Alternator 12V 70A Denso Style, Mount Centres A 154mm, Pulley Outside Diameter 54mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 50mm, Weight 4.82kg, Product Group 1 ROTATING ELECTRICAL.

OEX Alternator 12V 70A Denso Style. Part number DXA4163 should be checked first. Listed voltage is 12. Listed output rating is 70. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. Regulator type is Internal. Pulley configuration is 5 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4163, 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: Please confirm compatibility using part number DXA4163, the Denso-style pad mount, 12V 70A rating, 5 groove pulley, and the listed mounting measurements before ordering or fitting.

FAQ

What is the part number for this alternator?

The part number is DXA4163. For this listing, part number DXA4163 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FIAT 500, FIAT 500 2007, FIAT PUNTO. These details should still be checked against the original unit before ordering.

What voltage and output does this alternator have?

It is a 12V alternator with a 70A power rating. For this listing, part number DXA4163 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FIAT 500, FIAT 500 2007, FIAT PUNTO. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

This alternator is listed as new. For this listing, part number DXA4163 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FIAT 500, FIAT 500 2007, FIAT PUNTO. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It uses an internal regulator. For this listing, part number DXA4163 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FIAT 500, FIAT 500 2007, FIAT PUNTO. These details should still be checked against the original unit before ordering.

What pulley setup does it have?

It has a 5 groove pulley with a 54mm outside diameter. For this listing, part number DXA4163 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FIAT 500, FIAT 500 2007, FIAT PUNTO. These details should still be checked against the original unit before ordering.

Which vehicles are referenced in the fitment data?

The fitment data references FIAT 500, FIAT PUNTO and FIAT RITMO applications, including certain 2006 to 2010 model references. Exact fitment still needs to be confirmed against the part number and mounting measurements. For this listing, part number DXA4163 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FIAT 500, FIAT 500 2007, FIAT PUNTO. These details should still be checked against the original unit before ordering.