Delco Remy Alternator 24V 160A 40SI Part No. 8600668

The Delco Remy 40SI alternator is a 24V, 160A unit supplied new with an internal regulator and pad mount configuration. It is listed under Part No. 8600668 and is intended for applications where the matching mounting pattern, shaft size and electrical specification need to align exactly.

This alternator is identified as a brushless unit and carries a one year warranty. The key dimensions supplied include 190mm mount centre to centre, 127mm inside mounting legs, 80mm mount leg thickness, 13mm adjusting hole diameter and a 22mm shaft diameter, so it is important to compare those measurements against the unit being replaced.

For buyers working on heavy vehicle or equipment charging systems, the 24V output and 160 amp rating are the main electrical checkpoints. The unit is listed as new, weighs 14kg, and is described as a Delco Remy alternator in the 40SI series with a pad mount arrangement.

Key Features

• 24V alternator with 160A output
• 40SI series
• Brushless unit
• Internal regulator
• Pad mount design
• New unit

Specifications

• Brand: Delco Remy
• Part No.: 8600668
• Product type: Alternator
• Voltage: 24V
• Power rating: 160A
• Series: 40SI
• Regulator type: Internal
• Mount type: Pad

Known fitment references

• Caterpillar applications are listed, including 140M-3, 140M-AWD, 14M3, 16M3, 18M3, 730C, 794-AC, 795F, 795FAC, 815K, 816K, 824K, 825K, 826K, 834K, 924K, 926M, 930M, 938K, 938M, 950GC, 950K, 950M and 962K.
• Iveco applications are listed, including Eurotech MP and Powerstar.
• Some fitment references include year listings such as Caterpillar 140M-3 2016, Caterpillar 140M-AWD 2018, Iveco Eurotech MP 1996 to 2007, and Iveco Powerstar 1999 and 2000.
• Fitment should be checked against the part number 8600668 and the alternator mounting and shaft dimensions before purchase.

Application and Buying Notes

Before ordering, confirm the replacement alternator is a 24V system and that the charging output required is 160A. Those two electrical details are critical on heavy equipment and commercial vehicles, and they need to match the existing setup rather than being chosen on appearance alone.

The physical mounting dimensions matter just as much as the electrical rating. Check the 190mm mount centre to centre measurement, 127mm inside mounting legs, 80mm mount leg thickness, 13mm adjusting hole diameter and 22mm shaft diameter against the unit already fitted.

This unit is a pad mount alternator with an internal regulator, so the application must suit that style of mounting and regulation. If your existing alternator uses a different mount arrangement or regulator type, the unit may not be suitable even if it looks similar from the outside.

The alternator is listed as a Delco Remy 40SI unit and the matching part number is 8600668. Using the part number together with the fitment references is the safest way to narrow the replacement down correctly, especially on machines where multiple charging system variants may exist.

Because fitment data includes Caterpillar and Iveco applications, it is sensible to verify the exact model and build details on the machine, not just the brand. Year references are shown for some applications, but the final check should always be the physical dimensions and part number.

If you are replacing a failed alternator, compare the old unit’s connector arrangement, mount style, shaft size and overall footprint before ordering. The supplied weight of 14kg can also help when comparing a direct replacement against the part already removed.

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 8600668 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 127mm, Power Rating (Amp) 160, Series 40SI, Suits Unit Make Delco, Note Brushless unit, Mount Cnt to Cnt 190mm, Shaft Dimension 22.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. 8600668, Brand DELCO REMY, Description Delco Remy Alternator 24V 160A 40SI, Adjusting Hole Diameter 13, Mount Leg Thickness 80mm, Regulator Type Internal, Shaft Diameter 22mm, Voltage 24.

Delco Remy Alternator 24V 160A 40SI. Part number 8600668 should be checked first. Listed voltage is 24. Listed output rating is 160. 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 8600668, 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 160 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CATERPILLAR 140M-3, CATERPILLAR 140M-3 2016, CATERPILLAR 140M-AWD, CATERPILLAR 140M-AWD 2018, IVECO EUROTECH MP, IVECO EUROTECH MP 1996. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

Compatibility note: Confirm compatibility by matching Part No. 8600668, 24V system voltage, 160A output, pad mount style and the listed mounting dimensions to your existing alternator and application details before ordering.

FAQ

What is the part number for this Delco Remy alternator?

The listed part number is 8600668.

What voltage and output does this alternator have?

It is a 24V alternator with a 160A power rating.

Is this alternator new or remanufactured?

It is listed as new.

Does it have an internal or external regulator?

The regulator type is internal.

What mounting style does it use?

It is listed as a pad mount alternator.

Which fitment references are shown for this unit?

Listed references include Caterpillar models such as 140M-3, 140M-AWD, 14M3, 16M3, 18M3, 730C and several other Caterpillar applications, plus Iveco Eurotech MP and Powerstar references.