OEX Alternator 12V 130A Denso Style DXA4054

This OEX alternator is a 12V, 130A unit supplied new for Denso-style applications, with part number DXA4054. It uses an internal regulator, a 7 groove pulley, and a twin leg alternator mount, so matching the physical layout is just as important as matching the electrical rating.

Key dimensions include 49mm inside mounting legs, a 179mm mount centre-to-centre measurement, M10x1.25 / 11 pivot hole diameter, 8.5 adjusting hole diameter, and a 60mm pulley outside diameter. Those figures help confirm the replacement alternator will align correctly with the brackets and belt drive on the vehicle.

OEX lists this alternator under rotating electrical products and backs it with a 3 year passenger / 1 year commercial warranty. It is a new unit, weighs 5.62kg, and carries pin code IR43. If you are replacing a Denso-style alternator, checking the dimensions and part number together is the safest way to avoid a mismatch.

Key Features

• 12V alternator rated at 130A
• New unit, not remanufactured
• Internal regulator
• 7 groove pulley
• Twin leg alternator mount
• Designed for Denso-style applications

Specifications

• Brand: OEX
• Product type: Alternator
• Unit of measure: Each
• Voltage: 12V
• Power rating: 130A
• Part No.: DXA4054
• Suits unit make: Denso
• Alternator mount: Twin Leg

Verified fitment application

• Honda Odyssey
• Honda Odyssey 2004
• Honda Odyssey 2005
• Honda Odyssey 2006
• Honda Odyssey 2007
• Honda Odyssey 2008
• Honda Odyssey 2009
• Honda Odyssey 2010

Application and Buying Notes

Before ordering, compare the part number DXA4054 with the unit on the vehicle and check the alternator style, because this listing is for a Denso-style alternator with a twin leg mount and internal regulator. Matching the electrical rating is also important: this unit is 12V and 130A, so it should only be considered where those specifications are required.

Physical fit is just as critical as electrical output. Confirm the 49mm inside mounting legs, 179mm mount centre-to-centre measurement, M10x1.25 / 11 pivot hole diameter, 8.5 adjusting hole diameter, and 60mm pulley outside diameter against the removed alternator or the vehicle’s mounting arrangement. If any of those dimensions differ, the unit may not install correctly even if the connector or belt type appears similar.

The 7 groove pulley should be checked against the existing belt configuration, as pulley section must match the drive system already on the vehicle. This alternator is a new OEX unit with an internal regulator, so it suits applications that call for that regulator arrangement rather than an externally regulated setup.

If you are replacing a worn alternator, it is worth confirming the charging system condition before installation. A flat battery, poor earth, damaged belt, or incorrect pulley alignment can create symptoms that look like alternator failure. Matching the vehicle application and the physical measurements before purchase helps reduce unnecessary returns and repeated labour.

For Honda Odyssey applications, use the verified fitment list as a guide and still compare the removed part carefully. Model names alone are not enough, especially where different engine, pulley, or connector arrangements can be used across a model range. The safest approach is to confirm the part number, mount style, pulley section, and the listed measurements together.

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 DXA4054 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 49mm, Pivot Hole Diameter M10x1.25 / 11, Pulley Outside Diameter 60mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 179mm, Weight 5.62kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4054, Brand OEX, Description OEX Alternator 12V 130A Denso Style, Adjusting Hole Diameter 8.5, Pin Code IR43, Power Rating (Amp) 130, Pulley Section 7 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 130A Denso Style. Part number DXA4054 should be checked first. Listed voltage is 12. Listed output rating is 130. 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 DXA4054, 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 130 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include HONDA ODYSSEY, HONDA ODYSSEY 2004, HONDA ODYSSEY 2005, HONDA ODYSSEY 2006. 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.

Compatibility note: Confirm fitment by checking part number DXA4054, Denso-style application details, 12V 130A output, twin leg mount, and the listed mounting and pulley dimensions against the vehicle or the removed alternator before purchase.

FAQ

Is this alternator new or remanufactured?

This is a new OEX alternator, not a remanufactured unit.

What is the output rating of this alternator?

It is rated at 12V and 130A.

What type of regulator does it use?

This alternator uses an internal regulator.

What belt pulley does it have?

It has a 7 groove pulley with a 60mm outside diameter.

What vehicles are listed as fitment?

Verified fitment is listed for Honda Odyssey applications from 2004 through 2013.

What should I check before ordering?

Confirm part number DXA4054, the Denso-style application, twin leg mount, 12V 130A rating, and the listed mounting and pulley dimensions against the unit being replaced.