OEX DXA4038 12V 140A Alternator Denso Style Twin Leg Mount
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OEX DXA4038 12V 140A Alternator Denso Style Twin Leg Mount

SKU: DXA4038
Price
$1,168
Buy now, pay later
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Shipping information

We offer fast and reliable shipping options to ensure that your order arrives in a timely manner. Our dedicated team works diligently to process and ship your items as quickly as possible.

Here are some key points to note about our shipping policy:

Standard Shipping

  • Frankies offers a $15.95 flat rate for Australia-wide shipping, no matter how many items you order. Some larger or heavier items may incur an additional fee, which will be communicated to you when your order is processed.
  • While we endeavour to dispatch all orders promptly, please be advised that due to the current national fuel shortages in Australia and the resulting pressure on logistics networks, order processing and dispatch may take up to 7 business days. We are not liable for delays caused by third-party freight carriers or fuel-related logistical disruptions. By placing an order, you acknowledge that delivery timeframes may be extended beyond our standard estimates during this period.

Estimated delivery times:

  • WA, NT, and TAS: currently experiencing longer shipping times
  • Holiday periods (e.g. Christmas): deliveries may be delayed due to increased freight volumes

Express Shipping

  • Express shipping is available and calculated based on your delivery location, as well as the size and weight of your order. To receive an accurate quote, please contact our Albion Park Rail store and request an "express shipping quote." Our team will promptly assist with pricing and availability. Payment for express shipping can be securely arranged over the phone.

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Product features

OEX DXA4038 12V 140A Denso Style Alternator Twin Leg External Regulator PCM Controlled ER55 New Unit

The OEX DXA4038 is a new 12V 140A Denso-style alternator with a twin leg mount and external regulator. This alternator is regulated by the vehicle's PCM (Powertrain Control Module) - not an internal voltage regulator. Before replacing, inspect the wiring and confirm the PCM is functioning correctly, as an externally regulated alternator that appears faulty may have a PCM or wiring fault rather than an alternator fault. Confirm fitment by OE number. 3-year passenger vehicle warranty, 1-year commercial warranty.

Product overview

The DXA4038 is an externally regulated alternator, meaning voltage regulation is handled by the vehicle's PCM rather than an internal voltage regulator. This is a critical distinction from internally regulated alternators. Before replacing this unit, inspect the alternator wiring harness and confirm the PCM is functioning correctly - a faulty PCM or wiring fault can prevent an externally regulated alternator from charging correctly and may be misdiagnosed as an alternator failure. Replacing the alternator without diagnosing the root cause will not resolve a PCM or wiring fault.

The supplier recommends confirming fitment by OE number for this SKU. Match all mounting dimensions, pin code and pulley configuration against your vehicle's existing alternator before ordering.

Features and benefits

New unit: Brand new - not remanufactured.

140A output: High-output alternator for vehicles with elevated electrical demands.

External regulator - PCM controlled: Voltage regulation is handled by the vehicle's PCM. Inspect wiring and confirm PCM function before replacing. Do not replace this unit without first ruling out a PCM or wiring fault.

Twin leg mount, 130mm CTC, 60mm inside leg: Confirm all mounting dimensions against the vehicle before ordering.

6-groove 53mm OD pulley: 6-groove multi-rib pulley for serpentine belt drive systems.

M10x1.5/11mm pivot hole, 11mm adjusting hole: Confirm hole sizes and thread specifications suit the vehicle's mounting points.

ER55 pin code: Confirm pin code and all dimensions against your vehicle.

Confirm by OE number: Supplier recommendation for this SKU - confirm against your vehicle's OE alternator number before ordering.

3-year passenger / 1-year commercial warranty: Extended warranty for passenger vehicle applications.

Technical specs

Specification Detail
SKU DXA4038
Brand OEX
Voltage 12V
Output 140A
Style Denso
Regulator External (PCM controlled)
Mount Twin leg
Pulley Section 6-groove
Pulley OD 53mm
Mount CTC 130mm
Inside Leg 60mm
Pivot Hole M10x1.5/11mm
Adjusting Hole 11mm
Pin Code ER55
Condition New
Weight 5.54kg
Warranty 3 years (passenger), 1 year (commercial)

Frequently asked questions

Is this a new or remanufactured unit? New. The DXA4038 is a brand new unit, not remanufactured or rebuilt.

What does "externally regulated" mean? An externally regulated alternator does not have its own internal voltage regulator. Instead, voltage regulation is controlled by the vehicle's PCM. This means the PCM sends a signal to the alternator to control its output. If the wiring harness or PCM is faulty, the alternator will not charge correctly even if the alternator itself is in good condition.

Why should I inspect the wiring and PCM before replacing? An externally regulated alternator that appears to not be charging may have a PCM or wiring fault rather than an alternator fault. Replacing the alternator without diagnosing the root cause will not fix a PCM or wiring problem. Inspect the wiring harness and confirm PCM function before ordering a replacement.

What is the warranty on this alternator? 3 years for passenger vehicle applications, 1 year for commercial use.

What should I confirm before ordering this alternator? Confirm by OE number as recommended by the supplier. Also confirm mount type (twin leg), CTC (130mm), inside leg (60mm), pivot hole (M10x1.5/11mm), adjusting hole (11mm), pulley section (6-groove), pulley OD (53mm) and pin code (ER55) all match your vehicle's requirements before ordering.