OEX Alternator 12V 220A Denso Style DXA4144HO

The OEX Alternator DXA4144HO is a new 12V, 220A unit in Denso style, supplied as an alternator for each application. It is listed with a pad mount, 9 groove pulley, internal regulator, and a 58mm pulley outside diameter, so it is important to compare the mounting and drive details with the original unit before ordering.

This alternator is noted as a high output upgrade from an original 150A unit to 220A. That increase in output is relevant where the vehicle has greater electrical demand, but the alternator still needs to suit the existing mounting arrangement, connector style, and drive pulley setup. The part number is DXA4144HO and the OEM number listed is DXA570.

Application details supplied with this unit reference Toyota LandCruiser VDJ79R and VDJ200R 4.5L 1VD-FTV. Those vehicle references are included only as listed here, and fitment should still be confirmed against the exact alternator fitment, mounting measurements, and part numbers on the vehicle.

The alternator includes a cable and fuse for upgrade use, and it is fitted with a semi-sealed brush box to help minimise debris entering the brush box. It is a 3 year passenger / 1 year commercial warranty item, with a recorded weight of 7.2kg.

Key Features

• 12V, 220A alternator
• Denso style unit
• New, not remanufactured
• Internal regulator
• Cable and fuse included for upgrade
• Semi-sealed brush box to help minimise debris entry

Specifications

• Brand: OEX
• Part No.: DXA4144HO
• OEM Number: DXA570
• Type: Alternator
• Voltage: 12V
• Power Rating: 220A
• Suits Unit Make: Denso
• Mount Hole Diameter: 10

Fitment guidance

• Toyota LandCruiser VDJ79R 4.5L 1VD-FTV
• Toyota LandCruiser VDJ200R 4.5L 1VD-FTV

Application and Buying Notes

Before buying, compare the part number DXA4144HO and the OEM number DXA570 with the alternator on the vehicle. Matching the identifier is one of the most reliable checks when selecting a replacement or upgrade, especially where the original unit is a 150A alternator and this replacement is rated at 220A.

Check the mounting dimensions carefully. This unit has a pad mount, a 10mm mount hole diameter, 161mm mount centre to centre, 64mm inside mounting legs, and 60mm mount leg thickness. Those measurements need to align with the vehicle’s existing bracket arrangement for a proper install.

Also confirm the drive and electrical details. The alternator uses a 9 groove pulley with a 58mm pulley outside diameter and an internal regulator. If the pulley section, regulator type, or connector arrangement does not match the original component, the alternator may not be a suitable direct swap.

The included cable and fuse are intended for upgrade use, so it is still wise to inspect the vehicle’s charging circuit condition, terminals, and related wiring before fitting. A higher output alternator can place different demands on the charging system, so clean connections and correct installation matter.

At 7.2kg, this is a substantial rotating electrical component and should be handled and installed with care. When confirming suitability, use the vehicle details supplied here, the measurements listed above, and the original alternator label or casting details where available.

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 DXA4144HO 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, Mount Hole Diameter 10, Pin Code IR115, Pulley Outside Diameter 58mm, Regulator Type Internal, Voltage 12, Alternator Mount Pad, New / Reman. New.

Additional published details for cross-checking include Weight 7.2kg, Product Group 1 ROTATING ELECTRICAL, Part No. DXA4144HO, Brand OEX, Description OEX Alternator 12V 220A Denso Style, Inside Mounting Legs 64mm, Mount Leg Thickness 60mm, Power Rating (Amp) 220, Pulley Section 9 Groove, Suits Unit Make Denso.

OEX Alternator 12V 220A Denso Style. Part number DXA4144HO should be checked first. Listed voltage is 12. Listed output rating is 220. 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 9 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4144HO, 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: Confirm fitment with the part number DXA4144HO, OEM number DXA570, and the listed mounting and drive specifications before purchase. Vehicle application details are limited to the Toyota LandCruiser VDJ79R and VDJ200R 4.5L 1VD-FTV references provided here.

FAQ

What type of alternator is this?

It is an OEX alternator, 12V and 220A, listed as a Denso style unit. It is new, with an internal regulator and a pad mount design.

What part numbers are supplied for identification?

The part number is DXA4144HO and the OEM number listed is DXA570. Use both identifiers when checking against the vehicle’s original alternator details.

Which vehicle references are listed for this alternator?

The supplied application references Toyota LandCruiser VDJ79R and VDJ200R 4.5L 1VD-FTV. No other vehicle models should be assumed from the listing.

What installation measurements are provided?

The alternator has a 10mm mount hole diameter, 161mm mount centre to centre, 64mm inside mounting legs, 60mm mount leg thickness, and a 58mm pulley outside diameter with a 9 groove pulley section.

Is this a new or remanufactured unit?

This alternator is listed as new, not remanufactured.

What warranty is listed?

The listed warranty is 3 years for passenger use and 1 year for commercial use. The warranty should be considered together with the listed application and installation details.