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Estimated arrival by Thursday, May 29
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Description
Restore your GM truck's power the right way — with real OEM quality.
This is a set of 8 genuine OEM Delphi 25317628 2 hole nozzle fuel injectors, fully rebuilt to perform like new. Every injector is ultrasonically cleaned, precision flow matched, and tested for even fuel delivery across all cylinders.
- Direct fit for GM 4.8L, 5.3L, and 6.0L V8 engines (2001–2007)
- Flow matched within 2% for maximum performance and smooth idle
- OEM reliability — no tuning required
Don't risk cheap aftermarket injectors. These are the same high-quality parts your truck came with from the factory — cleaned, tested, and backed by a lifetime warranty against failures or defects.
Includes lifetime warranty for your peace of mind.
🛠️ See Our Rebuilding Process
We start with genuine OEM Delphi 25317628 injector cores carefully collected for professional rebuilding:
Each injector is ultrasonically cleaned, fitted with brand new internal components, and flow-tested using industry-leading ASNU equipment:
Our ASNU test benches allow precision testing for leak-down, dynamic flow rate, spray pattern analysis, and coil integrity — ensuring every injector we ship meets or exceeds original OEM standards.
❓ Frequently Asked Questions
Are these brand new?
No. These are genuine GM OEM cores that have been professionally rebuilt, ultrasonically cleaned, and flow-matched to OEM or better performance standards. Each injector is tested on ASNU service benches to ensure better-than-new flow matching for maximum performance out of your engine.
Will these fit my truck?
If you have a GM truck or SUV with a 4.8L, 5.3L, or 6.0L V8 from 2001 to 2007, reference the compatibility chart below or use our Year Make Model checker from the main page. No tuning is required — just plug and play.
What if something goes wrong?
You're fully covered. We stand behind every set with a lifetime warranty against failures or defects. Each injector undergoes ultrasonic cleaning, flow matching within 2%, and validation testing on ASNU equipment before shipping. Buy with confidence knowing we have your back.
📋 Vehicle Compatibility Chart
| Make | Model | Engine | Years |
|---|---|---|---|
| Buick | Rainier | 5.3L V8 | 2004 |
| Cadillac | Escalade | 5.3L, 6.0L V8 | 2002–2006 |
| Cadillac | Escalade ESV | 6.0L V8 | 2003–2006 |
| Cadillac | Escalade EXT | 6.0L V8 | 2002–2006 |
| Chevrolet | Avalanche 1500 | 5.3L V8 | 2002–2006 |
| Chevrolet | Cargo Van | 6.0L V8 | 2004 |
| Chevrolet | Cheyenne | 5.3L V8 | 2003–2006 |
| Chevrolet | Express 1500 | 5.3L V8 | 2003–2007 |
| Chevrolet | Express 2500 | 4.8L, 5.3L, 6.0L V8 | 2003–2007 |
| Chevrolet | Express 3500 | 4.8L, 5.3L, 6.0L V8 | 2003–2007 |
| Chevrolet | Silverado 1500 | 4.8L, 5.3L, 6.0L V8 | 1999–2006 |
| Chevrolet | Silverado 1500 Classic | 4.8L, 5.3L, 6.0L V8 | 2007 |
| Chevrolet | Silverado 1500 HD | 6.0L V8 | 2001–2006 |
| Chevrolet | Silverado 1500 HD Classic | 6.0L V8 | 2007 |
| Chevrolet | Silverado 2500 | 4.8L, 5.3L, 6.0L V8 | 1999–2006 |
| Chevrolet | Silverado 2500 HD | 6.0L V8 | 2001–2007 |
| Chevrolet | Silverado 3500 | 6.0L V8 | 2001–2006 |
| Chevrolet | Silverado 3500 Classic | 6.0L V8 | 2007 |
| Chevrolet | Sonora | 5.3L V8 | 2003–2006 |
| Chevrolet | SSR | 5.3L V8 | 2003 |
| Chevrolet | Suburban 1500 | 5.3L non-flex, 6.0L V8 | 2000–2006 |
| Chevrolet | Suburban 2500 | 6.0L V8 | 2000–2006 |
| Chevrolet | Tahoe | 4.8L, 5.3L non-flex | 2000–2006 |
| Chevrolet | Trailblazer EXT | 5.3L V8 | 2003–2004 |
| GMC | Envoy XL | 5.3L V8 | 2003–2004 |
| GMC | Envoy XUV | 5.3L V8 | 2004 |
| GMC | Savana 1500 | 5.3L V8 | 2003–2007 |
| GMC | Savana 2500 | 4.8L, 5.3L, 6.0L V8 | 2003–2007 |
| GMC | Savana 3500 | 4.8L, 6.0L V8 | 2003–2007 |
| GMC | Sierra 1500 | 4.8L, 5.3L, 6.0L V8 | 1999–2006 |
| GMC | Sierra 1500 Classic | 4.8L, 5.3L, 6.0L V8 | 2007 |
| GMC | Sierra 1500 HD | 6.0L V8 | 2001–2006 |
| GMC | Sierra 1500 HD Classic | 6.0L V8 | 2007 |
| GMC | Sierra 2500 | 5.3L, 6.0L V8 | 1999–2004 |
| GMC | Sierra 2500 HD | 6.0L V8 | 2001–2007 |
| GMC | Sierra 3500 | 6.0L V8 | 2001–2006 |
| GMC | Sierra 3500 Classic | 6.0L V8 | 2007 |
| GMC | W3500 Forward | 6.0L V8 | 2004–2006 |
| GMC | W4500 Forward | 6.0L V8 | 2003–2007 |
| GMC | Yukon | 4.8L, 5.3L, 6.0L V8 | 2000–2006 |
| GMC | Yukon XL 1500 | 5.3L, 6.0L V8 | 2000–2006 |
| GMC | Yukon XL 2500 | 6.0L V8 | 2000–2006 |
| Hummer | H2 | 6.0L V8 | 2003–2007 |
| Isuzu | Ascender | 5.3L V8 | 2003–2004 |
| Isuzu | NPR, NPR-HD | 6.0L V8 | 2003–2004 |
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