OEX Alternator 12V 105A Denso Style DXA504

The OEX Alternator DXA504 is a new 12V, 105A alternator in Denso style, supplied as a single-leg mount unit with an internal regulator. It is listed with a 6 groove pulley measuring 56mm outside diameter, a 51mm mount leg thickness, a 139mm centre-to-centre mount spacing, and 10mm pivot and adjusting holes.

This alternator is identified for Delco applications and carries the OEX part number DXA504, with pin code IR51. The unit weight is 5.24kg, which is useful when comparing like-for-like replacement parts and confirming the correct bracket and mounting arrangement before ordering.

OEX positions this alternator range as an aftermarket option backed by ISO9001 certified manufacturing processes and a warranty of 3 years for passenger use or 1 year for commercial use. As with any charging-system component, confirm the part number, mount style, pulley configuration, and application details against the vehicle before fitment.

Key Features

• New alternator, not remanufactured
• 12V output with 105A power rating
• Internal regulator
• Single-leg alternator mount
• 6 groove pulley, 56mm outside diameter
• 10mm pivot hole and 10mm adjusting hole

Specifications

• Brand: OEX
• Part No.: DXA504
• Product type: Alternator
• Voltage: 12V
• Current output: 105A
• Unit condition: New
• Regulator type: Internal
• Suits unit make: Delco

Verified fitment applications

• Chevrolet Blazer S10
• Chevrolet S10
• GMC Sierra 2500 HD
• GMC Sierra 3500
• Holden Suburban

Application and Buying Notes

Before ordering, match the OEX part number DXA504 to the existing unit and check that the vehicle uses a Delco-style alternator with a single-leg mount. The listed mounting dimensions are specific: 139mm mount centre to centre, 51mm mount leg thickness, and 10mm pivot and adjusting holes, so these measurements need to align with the original installation points.

The pulley details matter just as much as the electrical rating. This alternator uses a 6 groove pulley with a 56mm outside diameter, so it needs to suit the belt setup already on the vehicle. If the belt groove count or pulley diameter differs from the original alternator, the unit may not be a direct replacement even if the electrical output looks similar.

The unit is rated at 12V and 105A, which is the key output figure to compare against the vehicle’s charging requirements. It is also an internally regulated alternator, so the regulation setup needs to match the system already fitted. Weight is listed at 5.24kg, which can help when comparing with the removed part or confirming you have the correct style in hand.

The fitment information supplied includes Chevrolet Blazer S10, Chevrolet S10, GMC Sierra 2500 HD, GMC Sierra 3500, and Holden Suburban applications. Use that information as a guide only and verify the exact vehicle details, year, mount style, pulley configuration, and part number before purchase, especially if the vehicle has been modified or previously repaired with non-original charging components.

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 DXA504 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 Leg Thickness 51mm, Pivot Hole Diameter 10, Pulley Outside Diameter 56mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 139mm, Weight 5.24kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA504, Brand OEX, Description OEX Alternator 12V 105A Denso Style, Adjusting Hole Diameter 10, Pin Code IR51, Power Rating (Amp) 105, Pulley Section 6 Groove, Suits Unit Make Delco, Alternator Mount Single Leg.

OEX Alternator 12V 105A Denso Style. Part number DXA504 should be checked first. Listed voltage is 12. Listed output rating is 105. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single 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 DXA504, 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 105 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CHEVROLET BLAZER S10, CHEVROLET BLAZER S10 1994, CHEVROLET BLAZER S10 1995, CHEVROLET BLAZER S10 1996, GMC SIERRA 2500 HD, GMC SIERRA 2500 HD 2000. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

The listed warranty is 3yr Passenger 1yr Commercial. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment by matching part number DXA504, Delco unit make, single-leg mount, 12V 105A rating, 6 groove 56mm pulley, and the listed mounting dimensions against the existing alternator and vehicle application details before ordering.

FAQ

What is the part number for this alternator?

The part number is DXA504.

What voltage and output does this alternator have?

It is a 12V alternator with a 105A power rating.

Is this a new or remanufactured unit?

It is listed as new.

What type of regulator does it use?

It uses an internal regulator.

What pulley setup does it have?

It has a 6 groove pulley with a 56mm outside diameter.

Which vehicles are listed in the fitment information?

The fitment information includes Chevrolet Blazer S10, Chevrolet S10, GMC Sierra 2500 HD, GMC Sierra 3500, and Holden Suburban applications. Always confirm the exact vehicle details and mounting measurements before ordering.