Denso Alternator 12V 55A DXA4154

The Denso Alternator 12V 55A is a new OE product for rotating electrical applications, supplied as each and identified by part number DXA4154. It is a 12 volt alternator with a 55 amp power rating, internal regulator, and twin leg alternator mount.

Key physical details matter with an alternator like this. The unit has inside mounting legs of 75mm, a pivot hole diameter of 10mm, an adjusting hole diameter of M8x1.25, and a mount centre to centre measurement of 172mm. The pulley outside diameter is 69mm with an A section pulley.

This alternator is listed for Denso unit make applications and includes the note that P terminal = hour meter. An adaptor to suit HXK-30, HXK-22, HXK-17 is noted, so connection style and mounting arrangement should be checked carefully before ordering.

Key Features

• New Denso OE product
• 12V, 55A alternator
• Internal regulator
• Twin leg alternator mount
• P terminal suitable for hour meter use
• Adaptor noted to suit HXK-30, HXK-22, HXK-17

Specifications

• Brand: Denso
• Part No.: DXA4154
• Product type: Alternator
• Voltage: 12V
• Power rating: 55A
• New / Reman.: New
• Warranty: One year
• Unit of measure: Each

Verified fitment applications

• Caterpillar 216
• Caterpillar 216B
• Caterpillar 226
• Caterpillar 226B
• Caterpillar 228
• Caterpillar 232B
• Caterpillar 236
• Caterpillar 242

Application and Buying Notes

Check the part number DXA4154 first, then compare the mounting dimensions before ordering. The important match points here are the 75mm inside mounting legs, 10mm pivot hole, M8x1.25 adjusting hole, and 172mm mount centre to centre. If any of those points differ on the machine, the alternator may not install correctly even if the electrical rating looks close.

This unit is a 12V, 55A alternator with an internal regulator, so it should be matched to the vehicle or machine’s charging system requirements. The pulley is 69mm outside diameter with an A section belt profile, which is another practical checkpoint when comparing against the existing alternator.

The note about P terminal = hour meter is important for machines that use that terminal function. If your original alternator uses a different terminal arrangement, or if you need an adaptor, confirm the HXK-30, HXK-22, HXK-17 detail before purchase. This helps avoid wiring surprises on installation day.

Because the fitment list includes a range of Caterpillar applications, it is best to verify the exact model and any relevant build details on the machine rather than relying on the model name alone. The alternator is supplied new, weighs 3.36kg, and is covered by a one year warranty.

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 DXA4154 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 One Year, Inside Mounting Legs 75mm, Pivot Hole Diameter 10, Pulley Outside Diameter 69mm, Regulator Type Internal, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA4154, Brand DENSO, Description Denso Alternator 12V 55A, Adjusting Hole Diameter M8x1.25, Pin Code IR74, Power Rating (Amp) 55, Pulley Section A, Suits Unit Make Denso.

Denso Alternator 12V 55A. Part number DXA4154 should be checked first. Listed voltage is 12. Listed output rating is 55. 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 A. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4154, 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 55 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm compatibility using part number DXA4154, the listed mounting dimensions, pulley details, and the application details for your machine before ordering.

FAQ

What is the part number for this alternator?

The part number listed is DXA4154. For this listing, part number DXA4154 is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CATERPILLAR 216, CATERPILLAR 216 1998, CATERPILLAR 216 1999. 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 DXA4154 is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CATERPILLAR 216, CATERPILLAR 216 1998, CATERPILLAR 216 1999. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 55A power rating. For this listing, part number DXA4154 is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CATERPILLAR 216, CATERPILLAR 216 1998, CATERPILLAR 216 1999. These details should still be checked against the original unit before ordering.

What regulator type does it use?

It uses an internal regulator. For this listing, part number DXA4154 is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CATERPILLAR 216, CATERPILLAR 216 1998, CATERPILLAR 216 1999. These details should still be checked against the original unit before ordering.

What are the key mounting measurements?

The listed measurements are 75mm inside mounting legs, 10mm pivot hole diameter, M8x1.25 adjusting hole diameter, and 172mm mount centre to centre. For this listing, part number DXA4154 is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CATERPILLAR 216, CATERPILLAR 216 1998, CATERPILLAR 216 1999. These details should still be checked against the original unit before ordering.

Which applications are listed for fitment?

Verified applications listed include Caterpillar 216, 216B, 226, 226B, 228, 232B, 236, 242, 246, 247, 247B, 248, 252, 257, 257B2, 262, 303CR, 304.5, 304CR, 902, 906, CB-225E, CB-334E, and CB214D. For this listing, part number DXA4154 is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CATERPILLAR 216, CATERPILLAR 216 1998, CATERPILLAR 216 1999. These details should still be checked against the original unit before ordering.