OEX Alternator 12V 220A Denso Style DXA4137

The OEX Alternator DXA4137 is a new 12V alternator rated at 220 amps and built in a Denso style layout. It suits Denso units and uses a pad mount arrangement, with a 6 groove pulley and a pulley outside diameter of 54.5mm.

This unit carries pin code ER55 and measures 163mm mount centre to centre, with a mount leg thickness of 93mm and a 12mm pivot hole diameter. Those dimensions are important when checking that the alternator will physically line up with the original mounting points before purchase.

OEX lists this alternator in the rotating electrical range as a replacement option backed by a 3 year passenger and 1 year commercial warranty. At 7.4kg, it is a substantial electrical component, so confirming the part number DXA4137 and the application details remains the safest way to avoid the wrong fitment.

Key Features

• New 12V alternator
• 220 amp output rating
• Denso style unit
• Suits Denso applications
• Pad mount design
• 6 groove pulley

Specifications

• Brand: OEX
• Product type: Alternator
• New / remanufactured: New
• Voltage: 12V
• Power rating: 220A
• Pulley section: 6 groove
• Pulley outside diameter: 54.5mm
• Mount centre to centre: 163mm

Verified fitment guidance

• JEEP Grand Cherokee
• JEEP Grand Cherokee 2011

Application and Buying Notes

Before ordering, check the vehicle application against the part number DXA4137 and confirm the alternator is a Denso style pad mount unit. The key dimensions provided here are 163mm mount centre to centre, 93mm mount leg thickness, and a 12mm pivot hole diameter, so the existing alternator should be compared against those measurements if you are matching by physical fit.

The pulley is a 6 groove type with a 54.5mm outside diameter, which needs to match the belt system already on the vehicle. A mismatch here can prevent correct belt alignment or operation, so the groove count and pulley diameter should be checked carefully before installation.

This alternator is rated at 220A and 12V, so it is intended for vehicles that were specified for that electrical output. If the original unit is a different amperage rating or a different mounting style, do not assume compatibility just because the unit looks similar.

The listed weight is 7.4kg, which can help when comparing against an existing alternator during identification. For electrical and mounting components, the safest purchase is always the one confirmed by part number, mounting pattern, pulley specification and application details 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 DXA4137 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, Pin Code ER55, Power Rating (Amp) 220, Pulley Section 6 Groove, Voltage 12, Mount Cnt to Cnt 163mm, Weight 7.4kg, Product Group 1 ROTATING ELECTRICAL.

Additional published details for cross-checking include Part No. DXA4137, Brand OEX, Description OEX Alternator 12V 220A Denso Style, Mount Leg Thickness 93mm, Pivot Hole Diameter 12, Pulley Outside Diameter 54.5mm, Suits Unit Make Denso, Alternator Mount Pad, New / Reman. New.

OEX Alternator 12V 220A Denso Style. Part number DXA4137 should be checked first. Listed voltage is 12. Listed output rating is 220. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. 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 DXA4137, 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 220 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching part number DXA4137, Denso style pad mount details, pulley specification, and the listed application information before ordering.

FAQ

What is the part number for this alternator?

The part number listed is DXA4137. For this listing, part number DXA4137 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include JEEP GRAND CHEROKEE, JEEP GRAND CHEROKEE 2011. These details should still be checked against the original unit before ordering.

Is this alternator new or remanufactured?

It is listed as new. For this listing, part number DXA4137 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include JEEP GRAND CHEROKEE, JEEP GRAND CHEROKEE 2011. These details should still be checked against the original unit before ordering.

What voltage and output rating does it have?

It is a 12V alternator rated at 220 amps. For this listing, part number DXA4137 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include JEEP GRAND CHEROKEE, JEEP GRAND CHEROKEE 2011. These details should still be checked against the original unit before ordering.

What type of pulley does it use?

It uses a 6 groove pulley with a 54.5mm outside diameter. For this listing, part number DXA4137 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include JEEP GRAND CHEROKEE, JEEP GRAND CHEROKEE 2011. These details should still be checked against the original unit before ordering.

What mounting style is listed?

The alternator mount is listed as pad, and it suits Denso units. For this listing, part number DXA4137 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include JEEP GRAND CHEROKEE, JEEP GRAND CHEROKEE 2011. These details should still be checked against the original unit before ordering.

What warranty is provided?

The warranty listed is 3 years for passenger use and 1 year for commercial use. For this listing, part number DXA4137 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include JEEP GRAND CHEROKEE, JEEP GRAND CHEROKEE 2011. These details should still be checked against the original unit before ordering.