Prestolite Alternator 12V 185A BLP2333GHS

The Prestolite BLP2333GHS is a new 12V alternator rated at 185A, supplied as an OE product for heavy-duty electrical applications. It is a pad mount unit with clockwise rotation, an internal regulator, and an insulated return, so the mounting style and electrical setup need to match the vehicle application before purchase.

Key physical details include a 190mm mount centres A measurement, 108mm mount centre to centre, 12mm adjusting and pivot holes, and a 22mm shaft diameter. The pulley section is not applicable, which is an important check when comparing it against an existing alternator. Weight is listed at 12.58kg.

This unit is identified as Prestolite part number BLP2333GHS, with OEM number BLP2333GH. The alternator is backed by a 36 month / 500,000km warranty, and the brushless regulator includes battery sense and light driver functions. Those details make the unit suitable for buyers who need to match the alternator specification closely rather than relying on appearance alone.

Key Features

• 12V alternator rated at 185A
• New unit, not remanufactured
• OE product
• Internal regulator
• Clockwise rotation
• Pad mount alternator

Specifications

• Brand: Prestolite
• Part No.: BLP2333GHS
• OEM Number: BLP2333GH
• Voltage: 12V
• Power Rating: 185A
• Type: Alternator
• Unit of Measure: Each
• New / Reman.: New

Fitment guidance and known applications

• Verified fitment families include Caterpillar CT Series, Dennis Eagle Elite 2, Freightliner Argosy, Kenworth C-Series, Mack Granite, Mack Metroliner, Mack Superliner, Sterling Trucks A-Line, Sterling Trucks L-Line, and Western Star 4700/4800 series applications.
• Additional supported makes listed include Freightliner Century, Columbia, Coronado and FL Series, Kenworth K-Series and T-Series, Mack Titan, Trident, Valueliner and Vision, Sterling Trucks M-Line and Silver Star, and UD Nissan Diesel C Series.
• Sample application references provided include Freightliner Argosy 2003 to 2011 and 2017 to 2018, Kenworth C-Series 2003 to 2011, Mack Metroliner 2003 to 2008, Mack Superliner 2003 to 2004, Sterling Trucks A-Line 2003 to 2006, and Western Star 4800 2004 to 2012.

Application and Buying Notes

Before ordering, compare the existing alternator against the listed identifiers and dimensions: BLP2333GHS, OEM number BLP2333GH, 12V system voltage, 185A output, pad mount arrangement, 190mm mount centres A, and 108mm mount centre to centre. These details are the best first checks because a 12V, 185A alternator with an internal regulator must match the vehicle’s electrical system and physical mounting points.

The 22mm shaft diameter, 12mm adjusting hole, 12mm pivot hole, and clockwise rotation are also important when confirming interchange. If the old unit uses a different mount style, rotation, or shaft size, the alternator may not suit even if the vehicle model appears similar. The pulley section is listed as not applicable, so it should not be assumed to match a pulley-driven comparison without checking the removed part.

This alternator is described as an OE product and a new unit, which matters for buyers who want to replace a worn or failing alternator with the same type of unit rather than a rebuilt assembly. The internal regulator and brushless regulator note, including battery sense and light driver, are useful compatibility checkpoints for vehicles where charging control is integrated into the alternator design.

The warranty is listed as 36 months or 500,000kms, but warranty cover does not replace fitment confirmation. Heavy vehicle electrical parts can look similar across makes and series, so use the part number, OEM number, mounting measurements, and the application list together before placing the order. If the existing unit is unreadable, measuring the mount centres and checking the regulator setup is a sensible way to narrow the match.

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 BLP2333GHS 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 36 Months 500000kms, Mount Centres A 190mm, Power Rating (Amp) 185, Regulator Type Internal, Shaft Diameter 22mm, Voltage 12, Alternator Mount Pad, New / Reman. New.

Additional published details for cross-checking include OEM Number BLP2333GH, Product Group 2 ALTERNATORS, Part No. BLP2333GHS, Brand PRESTOLITE, Description Prestolite Alternator 12V 185A, Adjusting Hole Diameter 12, Pivot Hole Diameter 12, Pulley Section Not Applicable, Rotation CW.

Prestolite Alternator 12V 185A. Part number BLP2333GHS should be checked first. Listed voltage is 12. Listed output rating is 185. 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.

Compatibility note: Confirm fitment using Prestolite part number BLP2333GHS, OEM number BLP2333GH, the 12V 185A specification, pad mount arrangement, and the listed mounting measurements before purchase. Vehicle model names alone are not enough to verify interchange.

FAQ

What is the part number for this alternator?

The listed part number is BLP2333GHS. The OEM number shown is BLP2333GH.

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What voltage and output does it have?

It is a 12V alternator with a 185A power rating.

What type of regulator does it use?

It has an internal regulator. The note also states the brushless regulator has battery sense and light driver.

What mounting details are provided?

The alternator is a pad mount unit with mount centres A of 190mm, mount centre to centre of 108mm, and 12mm adjusting and pivot holes.

Which vehicles can it suit?

Verified application families include Caterpillar CT Series, Dennis Eagle Elite 2, Freightliner Argosy, Kenworth C-Series, Mack Granite, Mack Metroliner, Mack Superliner, Sterling Trucks A-Line, Sterling Trucks L-Line, and Western Star 4700/4800 series applications. Always confirm using the part number and measurements as well.