Delco Remy Alternator 24V 275A 55SI Part No. 8600580

The Delco Remy 55SI alternator is a 24V, 275A rotating electrical unit supplied new, with part number 8600580 and OEM number 8600580. It is listed as a pad mount alternator with internal regulator and 127mm inside mounting legs, so matching the mounting style and dimensions is an important part of confirming suitability.

With a 275 amp power rating, this alternator is specified for applications that need a higher output 24 volt charging unit. The unit weight is 19.5kg, and it is supplied as each. Delco Remy identifies it as a premium quality alternator designed to increase efficiency, but the key buying check remains correct part number and application match.

This listing is for the Delco Remy brand and suits unit make Delco. It carries a one year warranty and is marked new, not remanufactured. If you are replacing an existing 55SI unit, compare the 8600580 number, 24V system requirement, 275A rating, pad mount arrangement and 127mm inside mounting legs before ordering.

Key Features

• 24V alternator with 275A output
• 55SI series
• New unit
• Internal regulator
• Pad mount alternator
• 127mm inside mounting legs

Specifications

• Brand: Delco Remy
• Product type: Alternator
• Series: 55SI
• Voltage: 24V
• Power rating: 275A
• New / Reman.: New
• Regulator type: Internal
• Alternator mount: Pad

Application and Buying Notes

Before buying, match the part number 8600580 against the unit you are replacing, then confirm the system is 24V and the alternator needs a 275A rating. Those details matter because alternator output and voltage must suit the vehicle’s electrical system, and this listing is specifically a Delco Remy 55SI unit.

The mounting setup also needs checking carefully. This alternator is a pad mount design with 127mm inside mounting legs, so the physical fit must be verified against the existing unit and mounting arrangement. If your current alternator is a different mount style, different leg spacing, or a different regulator arrangement, it should be checked before purchase.

At 19.5kg, this is a substantial alternator and should be handled accordingly during inspection and installation. The unit is new and carries a one year warranty, but warranty cover does not replace the need to confirm the correct application. Compare the Delco Remy branding, 55SI series, internal regulator and OEM number 8600580 so you can order with confidence.

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 8600580 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, Power Rating (Amp) 275, Series 55SI, Voltage 24, New / Reman. New, Weight 19.5kg, Product Group 1 ROTATING ELECTRICAL, Part No. 8600580.

Additional published details for cross-checking include Brand DELCO REMY, Description Delco Remy Alternator 24V 275A 55SI, Inside Mounting Legs 127mm, Regulator Type Internal, Suits Unit Make Delco, Alternator Mount Pad, OEM Number 8600580, Product Group 2 ALTERNATORS.

Delco Remy Alternator 24V 275A 55SI. Part number 8600580 should be checked first. Listed voltage is 24. Listed output rating is 275. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. Regulator type is Internal. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 8600580, 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 24 and output 275 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

Compatibility note: Please confirm fitment using the part number 8600580, the 24V / 275A specification, pad mount design, internal regulator, and 127mm inside mounting legs before ordering. If your existing unit differs in any of those details, check the application carefully with Micks Gone Bush.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured. For this listing, part number 8600580 is the main reference point. Listed voltage is 24. Listed output rating is 275. These details should still be checked against the original unit before ordering.

What voltage and output does this alternator have?

It is specified as 24V with a 275A power rating. For this listing, part number 8600580 is the main reference point. Listed voltage is 24. Listed output rating is 275. These details should still be checked against the original unit before ordering.

What series is this alternator?

It is a Delco Remy 55SI alternator. For this listing, part number 8600580 is the main reference point. Listed voltage is 24. Listed output rating is 275. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is 8600580, and the OEM number is also listed as 8600580. For this listing, part number 8600580 is the main reference point. Listed voltage is 24. Listed output rating is 275. These details should still be checked against the original unit before ordering.

What mounting and regulator details are listed?

It is a pad mount alternator with an internal regulator and 127mm inside mounting legs. For this listing, part number 8600580 is the main reference point. Listed voltage is 24. Listed output rating is 275. These details should still be checked against the original unit before ordering.

Does it come with a warranty?

Yes. It is listed with a one year warranty. For this listing, part number 8600580 is the main reference point. Listed voltage is 24. Listed output rating is 275. These details should still be checked against the original unit before ordering.