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Wilson 90-25-1238 Alternator
| Brand | Wilson 90-25-1238 |
|---|---|
| Amps | 110 |
| Clocking | 2:00 plug |
| Design | Ir/ef |
| Mount Type | J180 |
| Series | N/i |
| Unit OE | Hitachi |
| Volts | 12 |
| Product line | Remanufactured Alternator |
| Fits | Chevrolet, GMC, and Isuzu · 64 vehicles |
Remanufactured unit. Tear-down, cleaning, reassembly, and testing follow Wilson standards.
OE specification match. Built to meet and exceed original equipment requirements.
Hitachi replacement. Designed for applications using a Hitachi-style charging unit.
Cross-references 98075025, 8980750250 and LR1110-733 for the same application. See all 7.
Remanufactured Charging Performance
This Wilson remanufactured alternator is built for commercial-duty charging systems that need stable output and OE-style fitment. It is identified by part number 90-25-1238 and is matched to Hitachi applications with 110 amps and 12 volts.
Compatible with Isuzu NPR, Isuzu NPR-HD, Isuzu NQR, and Isuzu NRR applications, as well as Chevrolet W4500 Tiltmaster, Chevrolet W5500 Tiltmaster, Chevrolet W3500 Tiltmaster, Chevrolet W5500HD Tiltmaster, GMC W4500 Forward, GMC W5500 Forward, GMC W5500HD Forward, and GMC W3500 Forward models.
Key Features
- 110-amp output for charging-system demand.
- 12-volt electrical specification.
- IR/EF design with J180 mount type.
- 2:00 plug clocking for application-specific alignment.
- Remanufactured to meet and exceed OE specifications.
- Built as a Hitachi unit replacement.
Detailed Description
Wilson remanufactured alternators go through complete teardown, cleaning, reassembly with components built to Wilson standards, and rigorous testing before release. This process is intended to restore charging performance while maintaining the OE specification profile expected in commercial vehicle service. Part number 90-25-1238 is a direct reference for sourcing the correct unit for Isuzu NPR and related Chevrolet and GMC medium-duty platforms.
This part cross-references Monroe Shocks & Struts (e.g., 98075025, 8980750250) for the same application.
What It Is Used For
- Restoring battery charging output when the alternator is no longer maintaining system voltage.
- Replacing a worn or failed Hitachi-style charging unit.
- Addressing low-charge conditions, warning lights, or electrical instability.
- Supporting dependable electrical operation in commercial-duty service.
Installation Notes and Tips
Verify the 110-amp rating, 12-volt specification, J180 mount type, and 2:00 plug clocking before installation. Confirm the vehicle application against the fitment list for Isuzu NPR, NPR-HD, NQR, NRR, Chevrolet W4500 Tiltmaster, Chevrolet W5500 Tiltmaster, Chevrolet W3500 Tiltmaster, Chevrolet W5500HD Tiltmaster, GMC W4500 Forward, GMC W5500 Forward, GMC W5500HD Forward, and GMC W3500 Forward.
Quality Assurance
Wilson remanufactured alternators are assembled with components made to Wilson standards and tested to meet and exceed OE specifications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 2017 | Isuzu | NPR | 3.0L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2016 | Isuzu | NPR | 3.0L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2016 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2016 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2016 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2015 | Isuzu | NPR | 3.0L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2015 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2015 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2015 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2014 | Isuzu | NPR | 3.0L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2014 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2014 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2014 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2013 | Isuzu | NPR | 3.0L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2013 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2013 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2013 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2012 | Isuzu | NPR | 3.0L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2012 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2012 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2012 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2011 | Isuzu | NPR | 3.0L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2011 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2011 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2011 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2010 | Chevrolet | W4500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2010 | Chevrolet | W5500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2010 | GMC | W4500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2010 | GMC | W5500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2010 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2010 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2010 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | Chevrolet | W3500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | Chevrolet | W4500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | Chevrolet | W5500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | Chevrolet | W5500HD Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | GMC | W4500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | GMC | W5500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | GMC | W5500HD Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | Isuzu | NPR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2009 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | Chevrolet | W3500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | Chevrolet | W4500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | Chevrolet | W5500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | Chevrolet | W5500HD Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | GMC | W3500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | GMC | W4500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | GMC | W5500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | GMC | W5500HD Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | Isuzu | NPR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | Isuzu | NPR-HD | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | Isuzu | NQR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2008 | Isuzu | NRR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | Chevrolet | W3500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | Chevrolet | W4500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | Chevrolet | W5500 Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | Chevrolet | W5500HD Tiltmaster | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | GMC | W3500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | GMC | W4500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | GMC | W5500 Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | GMC | W5500HD Forward | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
| 2007 | Isuzu | NPR | 5.2L | L4 | DIESEL | Hitachi Unit; 110 Amps; 12 Volts; Remanufactured Alternator |
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