Prestolite Alternator 24V 250A BLP4110M

The Prestolite BLP4110M is a new 24V alternator with a 250A power rating, built as an OE product for demanding rotating electrical applications. It uses an internal regulator, brushless construction, insulated return, and a pad mount arrangement, with a shaft diameter of 22mm.

This unit is listed with mount centres of 108mm and 126mm, a 12mm mount hole diameter, and a mounting leg thickness of 80mm. Rotation is clockwise, the pulley section is not applicable, and the alternator weighs 16.72kg.

Prestolite identifies this alternator as designed for extreme mining applications. It is also noted as not compatible with diode type battery isolators, and for dual alternator applications the R214107437S regulator is required to be installed.

Key Features

• 24V, 250A alternator
• Prestolite OE product
• Brushless design
• Internal regulator
• Self-exciting
• Lamp terminal and AC (R) terminal

Specifications

• Part number: BLP4110M
• Brand: Prestolite
• Product type: Alternator
• Voltage: 24V
• Power rating: 250A
• New unit
• Warranty: One year
• Mount type: Pad

Application and Buying Notes

Check the part number BLP4110M first, then confirm the 24V system and 250A charging requirement before ordering. The mounting layout also matters here, with pad mount construction, 108mm and 126mm mount centres, 12mm mount holes, and an 80mm mount leg thickness all needing to match the application.

This alternator is intended for Prestolite units and is identified as an OE product. Because it is brushless, self-exciting, and fitted with an internal regulator, it should be matched carefully to the existing charging setup rather than chosen on amperage alone.

There is an important application warning on this unit: it is not compatible with diode type battery isolators. If the vehicle or machine uses a dual alternator arrangement, the R214107437S regulator is required to be installed. That makes the existing electrical layout just as important as the physical dimensions.

The 22mm shaft diameter, clockwise rotation, and insulated return are all relevant checkpoints when comparing against an existing alternator. These details help avoid buying a unit that looks close on paper but does not suit the bracket, pulley arrangement, or electrical configuration in service.

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 BLP4110M 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, Mount Centres B 126mm, Mount Leg Thickness 80mm, Pulley Section Not Applicable, Rotation CW, Suits Unit Make Prestolite, Note For dual alternator applications, R214107437S regulator is required to be installed Designed for extreme mining applications. Not compatible with diode type battery isolators, New / Reman. New.

Additional published details for cross-checking include Weight 16.72kg, Product Group 1 ROTATING ELECTRICAL, Part No. BLP4110M, Brand PRESTOLITE, Description Prestolite Alternator 24V 250A, Mount Centres A 108mm, Mount Hole Diameter 12, Power Rating (Amp) 250, Regulator Type Internal, Shaft Diameter 22mm.

Prestolite Alternator 24V 250A. Part number BLP4110M should be checked first. Listed voltage is 24. Listed output rating is 250. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. Regulator type is Internal. Pulley configuration is Not Applicable. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BLP4110M, 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 250 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment using the BLP4110M part number, 24V 250A rating, pad mount dimensions, clockwise rotation, 22mm shaft diameter, and the note about diode type battery isolators before purchase. If the vehicle or machine is set up for dual alternators, the R214107437S regulator requirement also needs to be checked.

FAQ

What is the part number for this alternator?

The part number is BLP4110M. For this listing, part number BLP4110M is the main reference point. Listed voltage is 24. Listed output rating is 250. 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 250A power rating. For this listing, part number BLP4110M is the main reference point. Listed voltage is 24. Listed output rating is 250. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

This alternator is listed as new. For this listing, part number BLP4110M is the main reference point. Listed voltage is 24. Listed output rating is 250. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It uses an internal regulator. For this listing, part number BLP4110M is the main reference point. Listed voltage is 24. Listed output rating is 250. These details should still be checked against the original unit before ordering.

Is this alternator compatible with diode type battery isolators?

No. It is specifically noted as not compatible with diode type battery isolators. For this listing, part number BLP4110M is the main reference point. Listed voltage is 24. Listed output rating is 250. These details should still be checked against the original unit before ordering.

What should be checked for fitment before ordering?

Check the BLP4110M part number, the 24V 250A specification, pad mount dimensions, clockwise rotation, 22mm shaft diameter, and the dual alternator note requiring the R214107437S regulator. For this listing, part number BLP4110M is the main reference point. Listed voltage is 24. Listed output rating is 250. These details should still be checked against the original unit before ordering.