Delco Remy Alternator 12V 240A 40SI Part No. 8600339

The Delco Remy 40SI alternator is a 12V, 240A unit supplied new, with internal regulation and a brushless design. It is listed under Part No. 8600339 and is intended for rotating electrical applications where the alternator specification needs to be matched carefully before purchase.

This unit uses a twin leg alternator mount, a 13 mm pivot hole diameter, a 1/2 UNC adjusting hole, and a 22 mm shaft diameter. The mount centre-to-centre measurement is 198 mm, which is a useful check point when comparing against the existing unit or mounting space in the vehicle.

Delco Remy identifies this alternator as part of the 40SI series and notes it as a premium quality, efficiency-focused unit. At 14.1 kg, it is a substantial alternator and should be handled with care during installation and comparison to the removed component.

Key Features

• 12V alternator
• 240A output rating
• 40SI series
• Internal regulator
• Brushless unit
• New alternator

Specifications

• Brand: Delco Remy
• Product type: Alternator
• Voltage: 12V
• Power rating: 240A
• Series: 40SI
• Regulator type: Internal
• Condition: New
• Mount type: Twin leg

Application and Buying Notes

Before ordering, compare the Delco Remy Part No. 8600339, the 40SI series, and the physical mounting details against the unit you are replacing. The key checks provided here are 12V voltage, 240A output, internal regulation, twin leg mount, 13 mm pivot hole diameter, 1/2 UNC adjusting hole, 22 mm shaft diameter, and 198 mm mount centre-to-centre.

The 240A rating is important if the vehicle’s electrical load demands a high-output alternator, but the correct fit still depends on matching the mounting arrangement and drive interface. A 22 mm shaft diameter and twin leg mount are not universal, so do not rely on output alone when confirming suitability.

This alternator is listed as new and brushless, which are useful identifiers when comparing it with a removed unit or parts catalog listing. If the original alternator differs in mount style, hole sizes, shaft size, or regulation type, it should be treated as a separate application until verified properly.

For best results, check the existing alternator’s tag, housing measurements, and mounting positions before purchase. If you are working from a sample unit, confirm the 198 mm centre-to-centre measurement, the 13 mm pivot hole, and the 1/2 UNC adjusting hole, as these are the most practical matching points supplied here.

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 8600339 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, Pivot Hole Diameter 13, Regulator Type Internal, Shaft Diameter 22mm, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. 8600339, Brand DELCO REMY, Description Delco Remy Alternator 12V 240A 40SI, Adjusting Hole Diameter 1/2 UNC, Power Rating (Amp) 240, Series 40SI, Suits Unit Make Delco, Note Brushless unit, Mount Cnt to Cnt 198mm.

Delco Remy Alternator 12V 240A 40SI. Part number 8600339 should be checked first. Listed voltage is 12. Listed output rating is 240. 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. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 8600339, 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 240 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching Part No. 8600339, 40SI series details, and the listed mounting and dimensional specifications to the vehicle’s existing alternator before ordering.

FAQ

What voltage is this Delco Remy alternator?

It is a 12V alternator. For this listing, part number 8600339 is the main reference point. Listed voltage is 12. Listed output rating is 240. These details should still be checked against the original unit before ordering.

What is the output rating?

The alternator is rated at 240A. For this listing, part number 8600339 is the main reference point. Listed voltage is 12. Listed output rating is 240. 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 8600339 is the main reference point. Listed voltage is 12. Listed output rating is 240. These details should still be checked against the original unit before ordering.

Does it use an internal regulator?

Yes. The regulator type is internal. For this listing, part number 8600339 is the main reference point. Listed voltage is 12. Listed output rating is 240. These details should still be checked against the original unit before ordering.

What mounting style does it use?

It uses a twin leg alternator mount. For this listing, part number 8600339 is the main reference point. Listed voltage is 12. Listed output rating is 240. These details should still be checked against the original unit before ordering.

What part number should I match for ordering?

The listed part number is 8600339. It is also described as a Delco Remy 40SI alternator, so those identifiers should be checked together against the existing unit. For this listing, part number 8600339 is the main reference point. Listed voltage is 12. Listed output rating is 240. These details should still be checked against the original unit before ordering.