Denso Alternator 12V 80A DXA4058 7 Groove Twin Leg

The Denso Alternator 12V 80A, part number DXA4058, is a new alternator supplied as each unit and listed with a 12 volt system and 80 amp power rating. It uses a 7 groove pulley and an internal regulator, which are key details to check against the vehicle’s charging system before ordering.

This alternator is listed with a twin leg mount, 157mm mount centre to centre, a 9/10 adjusting hole diameter and an 11mm pivot hole diameter. Those mounting dimensions matter because alternators can look similar while still differing in bracket style and hole spacing.

The unit is shown as a Denso alternator with a 52mm pulley outside diameter and a weight of 6.1kg. It is described as a compact and lightweight design with premium cores and precise OE assembly benchmarks, and it carries a one year warranty.

Fitment information supplied for this unit points to Toyota applications, including Toyota FJ Cruiser, Toyota Hilux and Toyota Land Cruiser Prado. As always, the part number, mounting details and pulley specification should be matched carefully before purchase.

Key Features

• Denso alternator, part number DXA4058
• 12V, 80A output
• 7 groove pulley
• Internal regulator
• Twin leg mount
• New unit

Specifications

• Brand: Denso
• Product type: Alternator
• Voltage: 12V
• Power rating: 80 amp
• Part number: DXA4058
• Unit of measure: Each
• Pulley section: 7 groove
• Pulley outside diameter: 52mm

Fitment information supplied

• Toyota
• Toyota FJ Cruiser
• Toyota Hilux
• Toyota Land Cruiser Prado
• Toyota FJ Cruiser 2010
• Toyota Hilux 2005
• Toyota Hilux 2006
• Toyota Hilux 2007

Application and Buying Notes

Before ordering, compare the part number DXA4058 with the alternator currently fitted to the vehicle. The mounting layout is also important here, with a twin leg mount, 157mm mount centre to centre, 9/10 adjusting hole diameter and 11mm pivot hole diameter all needing to align with the existing bracket arrangement.

The charging output is listed at 12V and 80A, so this unit is intended for vehicles designed around that electrical specification. The 7 groove pulley and 52mm pulley outside diameter should also be checked against the belt setup on the vehicle, because pulley style and groove count need to match the application.

This alternator is listed with an internal regulator and is described as a new unit. That means the replacement should be compared not only by brand, but also by regulator type, pulley arrangement and physical fitment details, especially when the vehicle has had previous repairs or electrical modifications.

The supplied fitment points to Toyota applications, including Toyota FJ Cruiser, Toyota Hilux and Toyota Land Cruiser Prado, with specific Toyota Hilux years shown from 2005 through 2013 and Toyota FJ Cruiser 2010 listed in the sample applications. Use those references as a guide only, and still confirm the part number and mounting measurements against the vehicle before fitting.

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 DXA4058 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 One Year, Pin Code IR115, Power Rating (Amp) 80, Pulley Section 7 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA4058, Brand DENSO, Description Denso Alternator 12V 80A, Adjusting Hole Diameter 9 / 10, Pivot Hole Diameter 11, Pulley Outside Diameter 52mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 157mm.

Denso Alternator 12V 80A. Part number DXA4058 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 7 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4058, 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.

Compatibility note: Confirm compatibility by matching part number DXA4058, 12V 80A output, twin leg mount, 7 groove pulley, 157mm mount centre to centre and the listed hole dimensions against the vehicle before ordering.

FAQ

What is the part number for this alternator?

The part number is DXA4058. For this listing, part number DXA4058 is the main reference point. Listed voltage is 12. Listed output rating is 80. Published fitment references include TOYOTA FJ CRUISER, TOYOTA FJ CRUISER 2010, TOYOTA HILUX. These details should still be checked against the original unit before ordering.

What voltage and amperage is this alternator?

It is listed as 12V and 80A. For this listing, part number DXA4058 is the main reference point. Listed voltage is 12. Listed output rating is 80. Published fitment references include TOYOTA FJ CRUISER, TOYOTA FJ CRUISER 2010, TOYOTA HILUX. These details should still be checked against the original unit before ordering.

Is this alternator new or remanufactured?

It is listed as new. For this listing, part number DXA4058 is the main reference point. Listed voltage is 12. Listed output rating is 80. Published fitment references include TOYOTA FJ CRUISER, TOYOTA FJ CRUISER 2010, TOYOTA HILUX. These details should still be checked against the original unit before ordering.

What type of pulley does it use?

It has a 7 groove pulley with a 52mm pulley outside diameter. For this listing, part number DXA4058 is the main reference point. Listed voltage is 12. Listed output rating is 80. Published fitment references include TOYOTA FJ CRUISER, TOYOTA FJ CRUISER 2010, TOYOTA HILUX. These details should still be checked against the original unit before ordering.

What mount type is listed?

The alternator mount is listed as twin leg, with 157mm mount centre to centre. For this listing, part number DXA4058 is the main reference point. Listed voltage is 12. Listed output rating is 80. Published fitment references include TOYOTA FJ CRUISER, TOYOTA FJ CRUISER 2010, TOYOTA HILUX. These details should still be checked against the original unit before ordering.

What vehicles are shown in the supplied fitment information?

The supplied fitment points to Toyota, Toyota FJ Cruiser, Toyota Hilux and Toyota Land Cruiser Prado, with Toyota Hilux years from 2005 to 2013 and Toyota FJ Cruiser 2010 shown in the sample applications. For this listing, part number DXA4058 is the main reference point. Listed voltage is 12. Listed output rating is 80. Published fitment references include TOYOTA FJ CRUISER, TOYOTA FJ CRUISER 2010, TOYOTA HILUX. These details should still be checked against the original unit before ordering.