🚚 FREE Fast FedEx 2-Day Shipping
Estimated arrival by Monday, August 18
(May arrive Saturday depending on FedEx availability)
🕒 Orders placed now will ship today
💨 $42.95 FedEx Overnight – arrives by Friday, August 15
Description
Restore your GM truck's power the right way — with real OEM quality.
This is a set of 8 rebuilt OEM GM Delphi 25317628 fuel injectors — the exact injectors used in 2001–2007 GM 4.8L, 5.3L, and 6.0L V8 engines. These genuine 25317628 injectors are professionally serviced, ultrasonically cleaned, and flow-matched to OEM specs.
- Direct fit for non-flex GM 4.8L, 5.3L, and 6.0L V8 engines (1999–2007)
- Flow matched within 2% for maximum performance and smooth idle
- OEM reliability — no tuning required
This 25317628 injector set offers a perfect OEM replacement for non-flex fuel engines originally equipped with Delphi part number 25317628, also listed as AC Delco 25317628 or GM 25317628 in service manuals and catalogs. Delphi was the manufacturer contracted by GM to make these 25317628 injectors.
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 — genuine Delphi 25317628 injectors — 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 |
Need a different GM injector? Browse all GM fuel injectors here.
🚚 FREE Fast FedEx 2-Day Shipping
Estimated arrival by Monday, August 18
(May arrive Saturday depending on FedEx availability)
🕒 Orders placed now will ship today
💨 $42.95 FedEx Overnight – arrives by Friday, August 15
We accept any return within 60 days — no RMA required, no restocking fees, and no questions asked. Install it, test it, keep running it. If you’re not completely satisfied, just send them back.
✔ Fully refundable, even if used
✔ No RMA. No restock fees. No hassle.
✔ See full refund policy ✔ Backed by our lifetime replacement warranty
All injectors are backed by our lifetime replacement warranty.
Payment & Security
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