Delco Remy Alternator 24V 275A 55SI Part No. 61006081

The Delco Remy 55SI alternator is a new 24V unit rated at 275A, supplied as Part No. 61006081. It is listed as a pad-mount alternator with a long pad mount of 105mm, which is an important check point when matching the mounting style and leg thickness to the vehicle or equipment application.

This alternator uses an internal regulator and includes remote sense, so the electrical setup is a key part of the buying decision as well as the physical fit. At 19.6kg, it is a substantial rotating electrical component, and the 24V / 275A specification places it in a heavy-duty charging category rather than a light-duty passenger vehicle application.

Delco Remy identifies this unit as new, with a one-year warranty, and the stated unit of measure is each. If you are replacing an existing alternator, the most reliable match points are the 61006081 part number, the 55SI series, the 24V system voltage, and the 275A output rating.

Key Features

• 24V alternator
• 275A output rating
• 55SI series
• New unit
• Internal regulator
• Remote sense

Specifications

• Brand: Delco Remy
• Product type: Alternator
• Part No.: 61006081
• Series: 55SI
• Voltage: 24V
• Power rating: 275A
• Mount type: Pad
• Mount leg thickness: 105mm

Application and Buying Notes

Before ordering, confirm that your existing unit is a 24V alternator with a 275A rating and that the application accepts a Delco Remy 55SI unit. The listed Part No. 61006081 is the strongest reference for replacement matching, particularly where the original alternator is already identified by part number.

Mounting details matter on this unit. It is a pad-mount alternator with long pad mount construction and a 105mm mount leg thickness, so the bracket style and physical clearance need to line up with the original installation. A correct electrical specification alone is not enough if the mount pattern or leg thickness differs.

The internal regulator and remote sense feature should also be checked against the charging system setup already in the vehicle or equipment. These details affect how the alternator is wired and controlled, so it is worth comparing the existing alternator label, connector arrangement, and system requirements before purchase.

Because no specific vehicle models are provided here, the safest approach is to match by part number, voltage, amperage, regulator type, and mount style. If you are unsure, compare the old unit side by side with the 61006081 listing details, including the 55SI series, 24V rating, 275A output, and 105mm pad mount measurement.

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 61006081 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, Product Group 2 ALTERNATORS, Part No. 61006081.

Additional published details for cross-checking include Brand DELCO REMY, Description Delco Remy Alternator 24V 275A 55SI, Mount Leg Thickness 105mm, Regulator Type Internal, Suits Unit Make Delco, Alternator Mount Pad, Weight 19.6kg, Product Group 1 ROTATING ELECTRICAL.

Delco Remy Alternator 24V 275A 55SI. Part number 61006081 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 61006081, 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.

Compatibility note: Confirm compatibility by matching Part No. 61006081, 55SI series, 24V system voltage, 275A output, pad mount style, and 105mm mount leg thickness against the existing alternator and application details before ordering.

FAQ

What is the part number for this alternator?

The listed part number is 61006081. For this listing, part number 61006081 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 a 24V alternator with a 275A power rating. For this listing, part number 61006081 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.

Is this a new or remanufactured unit?

It is listed as new. For this listing, part number 61006081 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 style does it use?

It uses a pad mount and is listed with a long pad mount measurement of 105mm. For this listing, part number 61006081 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 have an internal regulator?

Yes, the regulator type is internal. For this listing, part number 61006081 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 warranty is listed?

A one-year warranty is listed. For this listing, part number 61006081 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.