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SKP SK13789 Alternator
| Brand | SKP SK13789 |
|---|---|
| Voltage | 12v |
| Fan Type | Internal |
| Rotation Direction | Clockwise (right) |
| Family | Hitachi ir/if series |
| Amperage Rating | 80 |
| Fits | Nissan · 7 vehicles |
OE-style replacement. Built as a direct-fit alternator for the listed charging-system applications.
Internal fan design. Integrated cooling helps support consistent electrical output.
HITACHI IR/IF series. Engineered to match the specified alternator family and rotation requirements.
Cross-references BBB Industries 13789, Quality-Built 13789N and 23100-4S100 for the same application. See all 3.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Alternator Overview
This SKP alternator is a 12V charging component built for select Nissan applications with the HITACHI IR/IF series design. It is specified for clockwise rotation and internal fan operation, with an 80-amp amperage rating for stable electrical output.
Compatible With 1999-2002 Nissan Frontier and 2000-2002 Nissan Xterra, this alternator is identified by part number SK13789. It cross-references BBB Industries 13789 and Quality-Built 13789N for the same application.
Key Features
- 12V alternator for standard automotive charging systems
- Internal fan design for integrated cooling
- Clockwise rotation, right-hand rotation specification
- HITACHI IR/IF Series construction
- 80-amp output rating
Detailed Description
SK13789 is an alternator for Nissan Frontier and Nissan Xterra charging-system service where the original unit uses the HITACHI IR/IF Series layout. The 12V design, internal fan, and clockwise rotation specification match the listed fitment requirements, while the 80-amp rating supports the vehicle's electrical charging needs. Use SK13789 when replacing a worn or failing alternator on the confirmed applications.
Common Issues This Part Can Address
- Battery warning light caused by weak charging output
- Low system voltage during normal driving
- Charging instability from a failing alternator
- Electrical accessories operating inconsistently
- Battery discharge after the engine is running
Installation Notes and Tips
Verify pulley style, connector layout, rotation direction, and amperage rating against the original unit before installation. Confirm the vehicle uses the listed 12V, internal fan, HITACHI IR/IF Series configuration for proper replacement selection. Part number SK13789 should be matched to the application details shown in the fitment data.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2002 | Nissan | Frontier | 3.3L | V6 | Front; 12 Volt; 100A; 4:00 Position; Internal Reg.; Internal Fan; M8-1.25 Stud; Negative Polarity; 5 Groove Solid Pulley |
| 2002 | Nissan | Xterra | 3.3L | V6 | Front; 12 Volt; 100A; 4:00 Position; Internal Reg.; Internal Fan; M8-1.25 Stud; Negative Polarity; 5 Groove Solid Pulley |
| 2001 | Nissan | Frontier | 3.3L | V6 | Front; 12 Volt; 100A; 4:00 Position; Internal Reg.; Internal Fan; M8-1.25 Stud; Negative Polarity; 5 Groove Solid Pulley |
| 2001 | Nissan | Xterra | 3.3L | V6 | Front; 12 Volt; 100A; 4:00 Position; Internal Reg.; Internal Fan; M8-1.25 Stud; Negative Polarity; 5 Groove Solid Pulley |
| 2000 | Nissan | Frontier | 3.3L | V6 | Front; 12 Volt; 100A; 4:00 Position; Internal Reg.; Internal Fan; M8-1.25 Stud; Negative Polarity; 5 Groove Solid Pulley |
| 2000 | Nissan | Xterra | 3.3L | V6 | Front; 12 Volt; 100A; 4:00 Position; Internal Reg.; Internal Fan; M8-1.25 Stud; Negative Polarity; 5 Groove Solid Pulley |
| 1999 | Nissan | Frontier | 3.3L | V6 | Front; 12 Volt; 100A; 4:00 Position; Internal Reg.; Internal Fan; M8-1.25 Stud; Negative Polarity; 5 Groove Solid Pulley |
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