Prestolite Alternator 12V 170A LBA2407

The Prestolite alternator listed here is a new 12V, 170A unit with part number LBA2407. It is fitted with an internal regulator, twin leg mount, and an insulated return, making it a specific rotating electrical replacement rather than a universal alternator.

Mounting and electrical details matter with this unit: inside mounting legs measure 101mm, mount centre to centre is 216mm, the pivot hole diameter is 13mm, and the adjusting hole diameter is 1/2 UNC. The shaft diameter is 22mm and the pulley section is not applicable.

This alternator is set up for clockwise rotation and is supplied with battery sense (S) and warning light (L) terminals. The notes also state that if the vehicle does not have a remote sense wire, a connection is required from alternator Sense (S) to Pos Out terminals.

Key Features

• New alternator, not remanufactured
• 12V system, 170A output
• Internal regulator
• Twin leg mount
• Insulated return
• Field isolated and above ground

Specifications

• Brand: Prestolite
• Part No.: LBA2407
• Product type: Alternator
• Voltage: 12V
• Power rating: 170A
• New / Reman.: New
• Rotation: Clockwise
• Regulator type: Internal

Verified fitment references

• Freightliner Argosy
• Freightliner Argosy 2000 to 2008
• Kenworth C-Series
• Kenworth C-Series 1993 to 1999
• Mack Big Foot
• Mack Big Foot 1996

Application and Buying Notes

Before ordering, match the part number LBA2407 and check the mounting dimensions carefully. The key measurements supplied for this alternator are 101mm inside mounting legs, 216mm mount centre to centre, a 13mm pivot hole, and a 1/2 UNC adjusting hole. Those dimensions are often the deciding factor when replacing a heavy vehicle alternator.

Electrical setup is just as important as the physical fit. This unit is 12V with a 170A rating, has an internal regulator, an insulated return, and uses battery sense (S) and warning light (L) terminals. If the vehicle does not already have a remote sense wire, a connection is required from Sense (S) to Pos Out terminals.

The alternator is a new unit and is listed with clockwise rotation, a 22mm shaft diameter, and no applicable pulley section. Those details need to line up with the existing installation before purchase, especially where the belt arrangement, bracket spacing, or terminal wiring differs between applications.

If the vehicle is being used in higher demand electrical conditions, the 170A output and fan design for improved airflow are relevant practical details. Even so, the alternator should still be checked against the existing unit, the vehicle’s wiring arrangement, and the listed fitment references rather than assumed to be interchangeable without verification.

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 LBA2407 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 2 Years 400,000km, Inside Mounting Legs 101mm, Power Rating (Amp) 170, Regulator Type Internal, Shaft Diameter 22mm, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Shaft Dimension 22, Product Group 2 ALTERNATORS, Part No. LBA2407, Brand PRESTOLITE, Description Prestolite Alternator 12V 170A, Adjusting Hole Diameter 1/2 UNC, Pivot Hole Diameter 13, Pulley Section Not Applicable, Rotation CW.

Prestolite Alternator 12V 170A. Part number LBA2407 should be checked first. Listed voltage is 12. Listed output rating is 170. 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. 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 LBA2407, 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 170 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm compatibility by matching part number LBA2407, the 12V 170A specification, and the measured mounting and terminal details against the vehicle application before ordering.

FAQ

What is the part number for this alternator?

The part number is LBA2407. For this listing, part number LBA2407 is the main reference point. Listed voltage is 12. Listed output rating is 170. Published fitment references include FREIGHTLINER ARGOSY, FREIGHTLINER ARGOSY 2000, FREIGHTLINER ARGOSY 2001. 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 LBA2407 is the main reference point. Listed voltage is 12. Listed output rating is 170. Published fitment references include FREIGHTLINER ARGOSY, FREIGHTLINER ARGOSY 2000, FREIGHTLINER ARGOSY 2001. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 170A power rating. For this listing, part number LBA2407 is the main reference point. Listed voltage is 12. Listed output rating is 170. Published fitment references include FREIGHTLINER ARGOSY, FREIGHTLINER ARGOSY 2000, FREIGHTLINER ARGOSY 2001. 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 LBA2407 is the main reference point. Listed voltage is 12. Listed output rating is 170. Published fitment references include FREIGHTLINER ARGOSY, FREIGHTLINER ARGOSY 2000, FREIGHTLINER ARGOSY 2001. These details should still be checked against the original unit before ordering.

What mounting dimensions are provided?

The listed mounting details are 101mm inside mounting legs, 216mm mount centre to centre, a 13mm pivot hole diameter, and a 1/2 UNC adjusting hole diameter. For this listing, part number LBA2407 is the main reference point. Listed voltage is 12. Listed output rating is 170. Published fitment references include FREIGHTLINER ARGOSY, FREIGHTLINER ARGOSY 2000, FREIGHTLINER ARGOSY 2001. These details should still be checked against the original unit before ordering.

Which vehicles are referenced for fitment?

The verified fitment references include Freightliner Argosy, Kenworth C-Series, and Mack Big Foot, with model years listed for some of those applications. For this listing, part number LBA2407 is the main reference point. Listed voltage is 12. Listed output rating is 170. Published fitment references include FREIGHTLINER ARGOSY, FREIGHTLINER ARGOSY 2000, FREIGHTLINER ARGOSY 2001. These details should still be checked against the original unit before ordering.