OEX Alternator 12V 150A Denso Style DXA4190

The OEX Alternator 12V 150A Denso Style, part number DXA4190, is a passenger alternator supplied as each. It is identified as a 12 volt, 150 amp unit and sits within the rotating electrical and alternators product groups.

For buyers comparing replacements, the key identifiers here are the OEX brand, DXA4190 part number, and Denso style design. Those details matter because alternators are matched by electrical output, mounting style, and application details rather than by general appearance alone.

OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with manufacture from ISO9001 certified factories. The listed warranty is 3 years for passenger use and 1 year for commercial use, which is important to note when selecting the correct application.

This alternator is listed for Lexus RX applications in the supplied fitment information, but the year and vehicle details still need to be checked carefully against the vehicle being worked on. Matching by part number and application remains the safest way to order a rotating electrical part.

Key Features

• 12V alternator with 150A output
• Denso style replacement
• OEX branded rotating electrical part
• Part number DXA4190
• Passenger alternator type
• Sold individually

Specifications

• Brand: OEX
• Part No.: DXA4190
• Description: OEX Alternator 12V 150A Denso Style
• Type: Alternator Passenger
• Product Group 1: Rotating Electrical
• Product Group 2: Alternators
• Unit of measure: Each
• Electrical output: 12V 150A

Fitment information supplied

• Lexus RX
• Lexus RX 2008
• Lexus RX 2009
• Lexus RX 2010
• Lexus RX 2011
• Lexus RX 2012
• Lexus RX 2013
• Lexus RX 2014

Application and Buying Notes

Before ordering, confirm the vehicle application against the part number DXA4190 and the 12V 150A specification. Alternators can look similar across different vehicles, so the correct mounting style, electrical output, and connector arrangement should be checked against the original unit already fitted to the vehicle.

The supplied fitment information points to Lexus RX applications, including model years from 2008 through 2015. That is useful as a guide, but it is not a substitute for confirming the exact vehicle variant, engine setup, and existing alternator details before purchase.

If you are replacing a worn or failed alternator, it is worth comparing the old unit’s label and terminal layout with this Denso style replacement. A mismatch in style or output rating can lead to installation delays, even when the vehicle family appears similar.

The warranty differs by use case: 3 years for passenger use and 1 year for commercial use. Make sure the intended application aligns with the way the vehicle is used, and keep the part number DXA4190 on hand when checking with your workshop or parts supplier.

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 DXA4190 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 1 ROTATING ELECTRICAL, Part No. DXA4190, Brand OEX, Description OEX Alternator 12V 150A Denso Style, Product Group 2 ALTERNATORS.

OEX Alternator 12V 150A Denso Style. Part number DXA4190 should be checked first. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number DXA4190, 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 RX, LEXUS RX 2008, LEXUS RX 2009, LEXUS RX 2010. 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 DXA4190, 12V 150A output, Denso style design, and the vehicle application details before ordering. The listed fitment guidance includes Lexus RX applications, but final compatibility should always be checked against the vehicle and the unit being replaced.

FAQ

What is the part number for this alternator?

The part number listed is DXA4190. For this listing, part number DXA4190 is the main reference point. Published fitment references include LEXUS RX, LEXUS RX 2008, LEXUS RX 2009. These details should still be checked against the original unit before ordering.

What electrical specification does it have?

It is listed as a 12V 150A alternator. For this listing, part number DXA4190 is the main reference point. Published fitment references include LEXUS RX, LEXUS RX 2008, LEXUS RX 2009. These details should still be checked against the original unit before ordering.

What style of alternator is it?

It is described as Denso style. For this listing, part number DXA4190 is the main reference point. Published fitment references include LEXUS RX, LEXUS RX 2008, LEXUS RX 2009. These details should still be checked against the original unit before ordering.

What warranty applies to this part?

The listed warranty is 3 years for passenger use and 1 year for commercial use. For this listing, part number DXA4190 is the main reference point. Published fitment references include LEXUS RX, LEXUS RX 2008, LEXUS RX 2009. These details should still be checked against the original unit before ordering.

What fitment information is supplied?

The supplied fitment guidance includes Lexus RX applications, with sample applications covering 2008 to 2015 model years. For this listing, part number DXA4190 is the main reference point. Published fitment references include LEXUS RX, LEXUS RX 2008, LEXUS RX 2009. These details should still be checked against the original unit before ordering.

Should I rely on the vehicle name alone when ordering?

No. Alternator fitment should be confirmed using the part number DXA4190, the 12V 150A specification, the Denso style description, and the vehicle application details. For this listing, part number DXA4190 is the main reference point. Published fitment references include LEXUS RX, LEXUS RX 2008, LEXUS RX 2009. These details should still be checked against the original unit before ordering.