Part #: N13987

BBB Industries N13987 Alternator

NEW ALTERNATOR
⚙️ 6 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦NEW ALTERNATOR
🚗Fitment: Dodge, Ram 2500 and Ram 3500
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Reliable Alternator Replacement for Dodge Ram 2500 and 3500

The BBB Industries NEW ALTERNATOR N13987 is designed to provide consistent electrical charging performance for Dodge Ram 2500 and Ram 3500 trucks. Engineered to meet OE specifications, this alternator ensures dependable power delivery for your vehicle's electrical system.

  • Amperage Rating: 136 amps for efficient charging
  • Cooling Method: Air-cooled with internal fan for optimal temperature control
  • Pulley Type: Conventional pulley with 8 grooves, compatible with serpentine belts
  • Rotation Direction: Clockwise for proper fitment
  • Voltage: 12 volts with external voltage regulator
  • OE Manufacturer: Bosch, ensuring quality and compatibility
  • Plug Clock Position: 11 o'clock for accurate electrical connections
  • Polarity: Negative for standard vehicle electrical systems

About the BBB Industries NEW ALTERNATOR Product Line

The NEW ALTERNATOR line from BBB Industries focuses on delivering alternators that meet or exceed original equipment standards. This product line emphasizes durability and precise fitment, making it suitable for professional repairs and maintenance. The N13987 alternator is part of this line, offering reliable performance specifically tailored for Dodge Ram 2500 and 3500 models.

Detailed Product Description

The BBB Industries alternator N13987 features a 136-amp output, providing sufficient power to support the electrical demands of Dodge Ram 2500 and Ram 3500 trucks. Its air cooling system with an internal fan helps maintain optimal operating temperatures, reducing the risk of overheating during extended use. The alternator includes a conventional pulley with eight grooves designed for serpentine belt systems, ensuring smooth and efficient power transfer. With a clockwise rotation and a pulley diameter of 2-5/16 inches (59 mm), this alternator matches the original Bosch specifications for seamless installation and operation.

Common Applications and Issues Addressed

  • Replacement for failing or underperforming alternators in Dodge Ram 2500 and 3500
  • Resolves battery charging problems and electrical system malfunctions
  • Eliminates issues related to overheating due to improved air cooling
  • Fixes pulley wear or belt slippage with included conventional pulley
  • Addresses voltage regulation inconsistencies with external regulator compatibility

Installation Notes and Tips

When installing the BBB Industries NEW ALTERNATOR N13987, ensure the serpentine belt is properly aligned with the 8-groove pulley. Verify the plug clock position at 11 o'clock for correct electrical connections. Since this alternator uses an external voltage regulator, confirm compatibility with your vehicle’s existing system. Follow manufacturer torque specifications for mounting bolts and double-check all wiring connections to prevent electrical faults.

Quality Assurance and Warranty

BBB Industries manufactures the NEW ALTERNATOR N13987 to meet strict quality standards, with components sourced from OE manufacturer Bosch. This alternator undergoes rigorous testing to ensure reliable performance and durability. Please refer to BBB Industries’ warranty policy for specific coverage details.

BrandBBB Industries
Part NumberN13987
PositionNEW ALTERNATOR
AC TapNo
Amperage Rating136
Brushless DesignNo
Cooling MethodAir
Decoupled Or Clutch PulleyNo
Fan TypeInternal
Number Of Pulley Grooves8
OE ManufacturerBosch
One Wire CapableNo
Outside Pulley Diameter (in)2-5/16
Outside Pulley Diameter (mm)59
Plug Clock Position11
PolarityNegative
Pulley Belt TypeSerpentine
Pulley IncludedYes
Pulley TypeConventional
Rotation DirectionClockwise
Voltage (V)12
Voltage Regulator TypeExternal

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005DodgeRam 25005.9LL6N/A136 Amps; NEW ALTERNATOR
2005DodgeRam 35005.9LL6N/A136 Amps; NEW ALTERNATOR
2004DodgeRam 25005.9LL6N/A136 Amps; NEW ALTERNATOR
2004DodgeRam 35005.9LL6N/A136 Amps; NEW ALTERNATOR
2003DodgeRam 25005.9LL6N/A136 Amps; NEW ALTERNATOR
2003DodgeRam 35005.9LL6N/A136 Amps; NEW ALTERNATOR

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0-124-525-04156028732AA

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.