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BBB Industries N13987 Alternator
| Brand | BBB Industries N13987 |
|---|---|
| AC Tap | No |
| Amperage Rating | 136 |
| Brushless Design | No |
| Cooling Method | Air |
| Decoupled Or Clutch Pulley | No |
| Fan Type | Internal |
| Number Of Pulley Grooves | 8 |
| OE Manufacturer | Bosch |
| One Wire Capable | No |
| Outside Pulley Diameter (in) | 2-5/16 |
| Outside Pulley Diameter (mm) | 59 |
| Plug Clock Position | 11 |
| Polarity | Negative |
| Pulley Belt Type | Serpentine |
| Pulley Included | Yes |
| Pulley Type | Conventional |
| Rotation Direction | Clockwise |
| Voltage (V) | 12 |
| Voltage Regulator Type | External |
| Product line | NEW ALTERNATOR |
| Fits | Dodge · 6 vehicles |
OE manufacturer pedigree. Built to Bosch specifications for dependable charging performance.
Pulley included. Ready for installation with a conventional serpentine pulley.
Air-cooled design. Internal fan helps manage heat during operation.
Cross-references 0-124-525-041 and 56028732AA for the same application. See all 2.
BBB Industries N13987 Alternator for Ram 2500/3500
The BBB Industries NEW ALTERNATOR N13987 is a 12-volt charging system replacement built for 2003-2005 Dodge Ram 2500 and Dodge Ram 3500 applications. With a 136-amp output, it is specified for vehicles that need dependable electrical performance from a direct-fit alternator assembly.
Key Features
- 136-amp amperage rating for charging-system output
- 12V alternator with external voltage regulator type
- OE manufacturer reference: Bosch
- Internal fan with air cooling method
- Serpentine belt pulley with 8 grooves
- Conventional pulley included
- Clockwise rotation direction
- Negative polarity
- Plug clock position: 11
- Outside pulley diameter: 2-5/16 in. (59 mm)
Detailed Description
BBB Industries N13987 is a new alternator for Dodge Ram 2500 and Dodge Ram 3500 trucks from 2003 through 2005. It matches the listed OE manufacturer reference to Bosch and uses an 8-groove serpentine pulley, internal fan, and air-cooled design for the specified charging-system layout. This part cross-references Bosch 0-124-525-041 and 56028732AA for the same application.
Compatible With 2003-2005 Dodge Ram 2500 and 2003-2005 Dodge Ram 3500, this alternator is a fitment-based replacement for trucks needing 136 amps of charging output. The BBB Industries N13987 part number is useful when matching the correct alternator by amperage, pulley configuration, plug position, and rotation direction.
What It Helps Address
- Low battery charging output
- Dim lights caused by weak alternator performance
- Battery warning light concerns related to charging-system failure
- Electrical instability from a worn or failing alternator
- Driveability issues tied to insufficient system voltage
Installation Notes and Tips
Verify the 11 o’clock plug clock position, clockwise rotation, negative polarity, and 8-groove serpentine pulley before installation. Confirm the vehicle uses the listed 12V external regulator setup and compare the original unit against BBB Industries N13987 to ensure the correct electrical and pulley configuration for your Dodge Ram 2500 or Dodge Ram 3500.
Quality Assurance
BBB Industries identifies this unit as a NEW ALTERNATOR and lists Bosch as the OE manufacturer reference for the application. Use the part number N13987 and the vehicle fitment details to confirm the correct replacement before installation.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Dodge | Ram 2500 | 5.9L | L6 | N/A | 136 Amps; NEW ALTERNATOR |
| 2005 | Dodge | Ram 3500 | 5.9L | L6 | N/A | 136 Amps; NEW ALTERNATOR |
| 2004 | Dodge | Ram 2500 | 5.9L | L6 | N/A | 136 Amps; NEW ALTERNATOR |
| 2004 | Dodge | Ram 3500 | 5.9L | L6 | N/A | 136 Amps; NEW ALTERNATOR |
| 2003 | Dodge | Ram 2500 | 5.9L | L6 | N/A | 136 Amps; NEW ALTERNATOR |
| 2003 | Dodge | Ram 3500 | 5.9L | L6 | N/A | 136 Amps; NEW ALTERNATOR |
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