OEX Alternator 12V 80A Denso Style DXA555

The OEX Alternator DXA555 is a new 12V, 80A unit built in Denso style and supplied with an internal regulator. It is listed with a 6 groove pulley, twin leg alternator mount, 170mm mount centre to centre, and an 80 amp power rating, so the physical dimensions and mounting style need to match the vehicle application before purchase.

This alternator is supplied under the OEX brand as a rotating electrical part and is identified for Denso-type applications. Key measurements include 41mm inside mounting legs, an M10x1.25 / 11 pivot hole diameter, and an M8 x 1.25 adjusting hole diameter. Those dimensions are important because alternators can look similar while using different brackets, pulley sections, or mount spacing.

OEX lists this unit as a new alternator with a weight of 5kg and warranty cover of 3 years for passenger use and 1 year for commercial use. The part number is DXA555, and the product is marked with pin code IR11. As with any charging system part, correct identification is best confirmed against the existing unit and the vehicle’s application details rather than appearance alone.

Key Features

• 12V alternator with 80A output
• Denso style unit
• Internal regulator
• New unit, not remanufactured
• 6 groove pulley
• Twin leg alternator mount

Specifications

• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Power rating: 80A
• Part number: DXA555
• Suits unit make: Denso
• Regulator type: Internal
• Pulley outside diameter: 55mm

Verified fitment references

• Lotus Elise
• Lotus Elise 2003
• Lotus Elise 2004
• Lotus Elise 2005
• Lotus Elise 2006
• Toyota Celica
• Toyota Celica 1999
• Toyota Celica 2000

Application and Buying Notes

Before ordering, compare the existing alternator against the DXA555 measurements and mounting style. This unit is 12V, 80A, Denso style, with an internal regulator, a 55mm pulley outside diameter, and a 6 groove pulley section. If the vehicle uses a different pulley configuration, regulator arrangement, or mount spacing, the alternator may not suit even if it appears similar.

The mounting points matter just as much as the electrical rating. Check the twin leg alternator mount, the 170mm mount centre to centre, the 41mm inside mounting legs, the M10x1.25 / 11 pivot hole diameter, and the M8 x 1.25 adjusting hole diameter. These details help confirm that the alternator will bolt up correctly and line up with the drive belt and brackets already on the vehicle.

The fitment references supplied for this part include Lotus Elise and a range of Toyota applications such as Celica, Corolla, MR2, Porte, Ractis, and Yaris. Even so, model names alone are not enough for a safe match because the same model can use different charging system variants across years and trims. Use the part number DXA555, the Denso-style application, and the exact mount and pulley measurements to verify the match.

If you are replacing an alternator from a vehicle with charging faults, make sure you compare the unit on the car rather than relying only on the vehicle badge. Alternators can differ by regulator type, pulley section, and bracket dimensions. The 5kg weight, internal regulator, and 80A output give a useful check, but the mounting dimensions remain the critical point when confirming compatibility.

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 DXA555 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 41mm, Pivot Hole Diameter M10x1.25 / 11, Pulley Outside Diameter 55mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 170mm, Weight 5kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA555, Brand OEX, Description OEX Alternator 12V 80A Denso Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR11, Power Rating (Amp) 80, Pulley Section 6 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 80A Denso Style. Part number DXA555 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA555, 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 fitment by matching the part number DXA555, Denso style application, 12V 80A output, internal regulator, pulley section, and all mount measurements against the existing alternator and vehicle application details before ordering.

FAQ

Is this alternator new or remanufactured?

This OEX alternator is listed as new, not remanufactured.

What is the voltage and output rating?

It is a 12V alternator with an 80A power rating.

Does this alternator have an internal regulator?

Yes. The regulator type is listed as internal.

What pulley setup does it use?

It has a 55mm pulley outside diameter and a 6 groove pulley section.

What part number should I use to confirm the part?

The part number is DXA555. The pin code is IR11.

What should I check before buying?

Check the part number, Denso style application, 12V 80A specification, twin leg mount, 170mm mount centre to centre, 41mm inside mounting legs, and the M10x1.25 / 11 and M8 x 1.25 hole sizes against the existing unit.