OEX Alternator 12V 170A Denso Style DXA4119

The OEX Alternator 12V 170A Denso Style, part number DXA4119, is a new rotating electrical component intended for applications that use a Denso-style alternator layout. It is rated at 12 volts and 170 amps, with an internal regulator and a 6 groove pulley, so the electrical rating and belt configuration need to match the vehicle’s original setup.

This unit uses a twin leg alternator mount with 76mm inside mounting legs, a 125mm centre-to-centre mount measurement, and a 10mm / M10x1.5 pivot hole diameter. The adjusting hole diameter is 12mm, and the pulley outside diameter is 49mm. Those dimensions are important because alternators can differ in both physical mounting and belt alignment even when they look similar.

OEX positions this alternator range around quality and reliability at aftermarket pricing, with manufacturing carried out under ISO9001 certified processes. The product is backed by a 3 year passenger and 1 year commercial warranty, which is useful context when comparing it with other replacement charging units in the same Denso-style category.

Key Features

• 12V, 170A alternator
• Denso style application
• Internal regulator
• 6 groove pulley
• Twin leg mount
• New unit, sold each

Specifications

• Part number: DXA4119
• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Power rating: 170 amps
• Suits unit make: Denso
• Regulator type: Internal
• Pulley section: 6 groove

Fitment guidance

• Fitment information is not confirmed here, so applications should be checked against the part number DXA4119 and the vehicle’s original alternator details.
• The listed fitment preview includes BMW applications, with sample entries showing BMW 1 models from 2012, 2013, 2014, 2015 and 2016, and grouped preview entries also showing BMW 2, BMW 3, BMW 4, BMW 5, BMW X1, BMW X3 and BMW Z4.
• Because alternator fitment depends on mount style, pulley section, regulator type and electrical rating, matching only by make or model is not enough for a safe purchase.
• Verify the original unit has a Denso-style layout, 12V charging system, 170A output requirement, 6 groove pulley and twin leg mount before ordering.

Application and Buying Notes

Before buying, compare the part number DXA4119 with the original alternator on the vehicle, then confirm the physical mounting points. This unit uses a twin leg mount, 76mm inside mounting legs, a 125mm centre-to-centre measurement, and a 10mm / M10x1.5 pivot hole, so those dimensions need to line up with the vehicle’s bracket and belt drive arrangement.

The electrical specification matters just as much as the casing. This alternator is 12V and rated at 170A, with an internal regulator, so it should be matched to the vehicle’s charging system requirements rather than selected by appearance alone. If the original unit uses a different voltage, regulator arrangement or output rating, this part may not be suitable.

Pulley details are another key check. The 6 groove pulley and 49mm outside diameter need to suit the belt system already on the vehicle. If the belt profile, pulley section or offset differs, the alternator may physically mount but still not align correctly. Always confirm the original alternator’s belt interface and mount style before fitting.

This is a new alternator, sold each, and it carries a 3 year passenger or 1 year commercial warranty. That warranty is relevant only when the part is correctly applied and fitted, so retaining the part number, purchase record and installation details is sensible if the vehicle is used in different duty cycles.

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 DXA4119 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 76mm, Pivot Hole Diameter 10 / M10x1.5, Pulley Outside Diameter 49mm, Regulator Type Internal, Voltage 12, Item Type Alternator, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA4119, Brand OEX, Description OEX Alternator 12V 170A Denso Style, Adjusting Hole Diameter 12, Pin Code IR228, Power Rating (Amp) 170, Pulley Section 6 Groove, Suits Unit Make Denso.

OEX Alternator 12V 170A Denso Style. Part number DXA4119 should be checked first. Listed voltage is 12. Listed output rating is 170. 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4119, 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 170 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching part number DXA4119, the Denso-style application, 12V / 170A specification, twin leg mount dimensions, and 6 groove pulley details against the vehicle’s original alternator before purchase.

FAQ

What is the part number for this alternator?

The part number is DXA4119.

Is this alternator new or reconditioned?

It is a new alternator, sold each.

What electrical rating does it have?

It is rated at 12V and 170A.

What type of regulator does it use?

It uses an internal regulator.

What pulley configuration is listed?

It has a 6 groove pulley with a 49mm outside diameter.

What should I check before ordering for fitment?

Check the part number DXA4119, the Denso-style application, the 12V and 170A rating, the twin leg mount measurements, and the pulley details against the vehicle’s original alternator.