Delphi Alternator 12V 100A Part No. 55302176

This Delphi alternator is a 12V, 100A unit with part number 55302176 and a one year warranty. It is listed as a new alternator, supplied each, and uses an internal regulator with a CW rotation pattern.

Key mounting details include a quad leg alternator mount, 58mm inside mounting legs, a 159mm mount centre to centre measurement, and 10mm adjusting and mount hole diameters. These are the sort of dimensions that matter when checking whether the alternator will physically sit and align correctly in the vehicle.

The pulley is a 6 groove design with a 54mm outside diameter, and the unit is identified with pin code IR127. For a buyer comparing replacements, the rated 12V and 100A output, along with the exact mounting and pulley details, are the main checkpoints before ordering.

Key Features

• Delphi brand alternator
• 12V system voltage
• 100A power rating
• New unit, not remanufactured
• Internal regulator
• CW rotation

Specifications

• Type: Alternator
• Brand: Delphi
• Part No.: 55302176
• Voltage: 12V
• Power Rating: 100A
• Regulator Type: Internal
• Rotation: CW
• Pulley Section: 6 Groove

Application and Buying Notes

Before ordering, match the part number 55302176 against the unit you are replacing. The alternator is identified as a Delphi unit with IR127 pin code, so those details are useful checks when comparing connectors and application references on the vehicle.

Physical fit is just as important as electrical output. Confirm the 58mm inside mounting legs, 159mm mount centre to centre measurement, 10mm adjusting hole, 10mm mount hole, and quad leg mounting style against the existing alternator and bracket arrangement.

Pulley setup also needs to line up with the drive system. This alternator uses a 6 groove pulley with a 54mm outside diameter and clockwise rotation, so belt configuration and rotation direction should be checked carefully before fitting.

The 12V, 100A rating tells you the electrical specification of the unit, but it does not by itself confirm vehicle compatibility. Use the part number, mount style, pulley details, and pin code together when verifying suitability for the application.

If the replacement unit on the vehicle differs in mount type, pulley section, rotation, or connector arrangement, do not assume it will interchange. Matching the listed measurements and identifiers is the safest way to avoid a wrong-part return.

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 55302176 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 58mm, Pin Code IR127, Pulley Outside Diameter 54mm, Regulator Type Internal, Suits Unit Make Delphi, Alternator Mount Quad Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. 55302176, Brand DELPHI, Description Delphi Alternator 12V 100A, Adjusting Hole Diameter 10, Mount Hole Diameter 10, Power Rating (Amp) 100, Pulley Section 6 Groove, Rotation CW, Voltage 12.

Delphi Alternator 12V 100A. Part number 55302176 should be checked first. Listed voltage is 12. Listed output rating is 100. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Quad 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 55302176, 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 100 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm compatibility by matching part number 55302176, pin code IR127, 12V 100A output, quad leg mount, 58mm inside mounting legs, 159mm mount centre to centre, and 6 groove 54mm pulley details to the vehicle application before purchase.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured. For this listing, part number 55302176 is the main reference point. Listed voltage is 12. Listed output rating is 100. These details should still be checked against the original unit before ordering.

What is the voltage and output rating?

This alternator is rated at 12V and 100A. For this listing, part number 55302176 is the main reference point. Listed voltage is 12. Listed output rating is 100. These details should still be checked against the original unit before ordering.

Does it use an internal regulator?

Yes. The regulator type is listed as internal. For this listing, part number 55302176 is the main reference point. Listed voltage is 12. Listed output rating is 100. These details should still be checked against the original unit before ordering.

What pulley setup does it have?

It has a 6 groove pulley with a 54mm outside diameter. For this listing, part number 55302176 is the main reference point. Listed voltage is 12. Listed output rating is 100. These details should still be checked against the original unit before ordering.

What mounting details should be checked before ordering?

Check the quad leg alternator mount, 58mm inside mounting legs, 159mm mount centre to centre, and 10mm adjusting and mount hole diameters. For this listing, part number 55302176 is the main reference point. Listed voltage is 12. Listed output rating is 100. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is 55302176. For this listing, part number 55302176 is the main reference point. Listed voltage is 12. Listed output rating is 100. These details should still be checked against the original unit before ordering.