OEX Alternator Denso Style DXA4199

The OEX Alternator Denso Style, part number DXA4199, is a passenger alternator supplied as each unit and identified in the range as a rotating electrical component. It is listed with an OE chip fitted, which is a useful identifier when matching the unit to the vehicle’s existing charging system requirements.

This alternator is associated with Lexus GS applications across 2005 to 2015 and Toyota Mark X applications across 2004 to 2009 in the fitment data provided. Because alternators can vary by application even within the same model line, the part number DXA4199 and the vehicle’s existing alternator details should be checked together before purchase.

OEX lists this alternator with a 3 year passenger warranty and 1 year commercial warranty. The OEM number shown is DXA4049, which gives buyers another reference point when comparing the replacement part against the original unit or existing paperwork.

As a Denso style alternator, this unit sits within the passenger alternator category and is intended for buyers who need a direct replacement considered against the listed part number, OEM number, and application notes. Using the exact identifiers reduces the chance of ordering the wrong charging component for the vehicle.

Key Features

• OEX brand alternator
• Denso style design
• Part No. DXA4199
• OEM Number DXA4049
• Fitted with OE chip
• Passenger alternator

Specifications

• Type: Alternator Passenger
• Unit of measure: Each
• Brand: OEX
• Product group: Rotating Electrical
• Product group 2: Alternators
• Warranty: 3yr Passenger / 1yr Commercial
• Part No.: DXA4199
• OEM Number: DXA4049

Verified fitment references

• Lexus GS: 2005 to 2015
• Toyota Mark X: 2004 to 2009

Application and Buying Notes

Before ordering, compare the vehicle’s current alternator against part number DXA4199 and the OEM number DXA4049. Those identifiers are the most reliable starting point when confirming a replacement alternator, particularly where model names such as Lexus GS or Toyota Mark X cover more than one build variation.

The listed fitment references point to Lexus GS from 2005 to 2015 and Toyota Mark X from 2004 to 2009. If the vehicle sits outside those ranges, or if the original unit has different identifiers, the part should be checked carefully before purchase rather than assumed to match.

The fitted OE chip is an important detail because it indicates the alternator is configured with that electronic feature as supplied. For electrical parts, matching the part number, OEM number, and the vehicle application is more important than relying on the model name alone.

If you are comparing multiple alternators, keep the Denso style description, the OEX brand, and the part number DXA4199 together. Those three identifiers are the clearest way to narrow the choice against the original unit and avoid confusion with similar-looking alternatives in the rotating electrical range.

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 DXA4199 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 PASSENGER, Unit of Measure EACH, Warranty 3yr Passenger 1yr Commercial, Product Group 2 ALTERNATORS, Part No. DXA4199, Brand OEX, Description Alternator Denso Style, OEM Number DXA4049, Product Group 1 ROTATING ELECTRICAL.

Alternator Denso Style. Part number DXA4199 should be checked first. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number DXA4199, 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 passenger in workshop, fleet, trade, agricultural, or construction service, the listed electrical specification should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include LEXUS GS, LEXUS GS 2005, LEXUS GS 2006, LEXUS GS 2007, TOYOTA MARK X, TOYOTA MARK X 2004. 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: Please confirm compatibility by matching part number DXA4199, OEM number DXA4049, and the vehicle’s application details before ordering. Fitment references supplied here should be checked against the actual vehicle build and existing alternator specifications.

FAQ

What is the part number for this alternator?

The part number is DXA4199. For this listing, part number DXA4199 is the main reference point. Published fitment references include LEXUS GS, LEXUS GS 2005, LEXUS GS 2006. These details should still be checked against the original unit before ordering.

What OEM number is listed for this alternator?

The OEM number listed is DXA4049. For this listing, part number DXA4199 is the main reference point. Published fitment references include LEXUS GS, LEXUS GS 2005, LEXUS GS 2006. These details should still be checked against the original unit before ordering.

What vehicles are referenced in the fitment data?

The fitment references include Lexus GS from 2005 to 2015 and Toyota Mark X from 2004 to 2009. For this listing, part number DXA4199 is the main reference point. Published fitment references include LEXUS GS, LEXUS GS 2005, LEXUS GS 2006. These details should still be checked against the original unit before ordering.

Does this alternator have any electronic feature listed?

Yes. It is listed as fitted with OE chip. For this listing, part number DXA4199 is the main reference point. Published fitment references include LEXUS GS, LEXUS GS 2005, LEXUS GS 2006. These details should still be checked against the original unit before ordering.

What warranty is listed for this alternator?

The warranty is listed as 3 years for passenger use and 1 year for commercial use. For this listing, part number DXA4199 is the main reference point. Published fitment references include LEXUS GS, LEXUS GS 2005, LEXUS GS 2006. These details should still be checked against the original unit before ordering.

Is this sold as a set or as a single unit?

It is supplied each, so it is sold as a single alternator unit. For this listing, part number DXA4199 is the main reference point. Published fitment references include LEXUS GS, LEXUS GS 2005, LEXUS GS 2006. These details should still be checked against the original unit before ordering.