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Estimated arrival by Tuesday, June 17
🕒 Orders placed now will ship today
💨 $42.95 FedEx Overnight – arrives by Monday, June 16
Description
Set of 6 rebuilt OEM fuel injectors — genuine GM part number 25313185 — for 2002–2004 4.2L I6 Vortec engines. Also cross-referenced as GM 19244623. Professionally ASNU serviced and flow tested to meet or exceed factory specs.
Core Product Overview
Set of 6 rebuilt OEM GM fuel injectors (25313185 / 19244623) for 4.2L I6 Vortec 4200 engines. Professionally ASNU serviced and flow tested to meet or exceed factory specs.
- Locally sourced genuine GM 25313185 injector cores – never aftermarket
- Inspected, ASNU serviced, ultrasonic injector cleaning, debris backflushed
- ASNU spray pattern tests, flow rate checked, and leak verified
- Includes new o-rings and internal filters – ready to install
- Professionally rebuilt by us here in Florida – never outsourced
Symptoms of Failing 25313185 Fuel Injectors
- Decreased fuel economy and performance
- Check Engine codes such as P0200–P0206
- Unstable idle or engine vibration
- Difficulty starting the engine
- Illuminated Check Engine Light
Vehicle Compatibility
- 2002–2004 Chevrolet Trailblazer 4.2L I6
- 2002–2004 GMC Envoy 4.2L I6
- 2002–2004 Oldsmobile Bravada 4.2L I6
- 2003–2004 Isuzu Ascender 4.2L I6
Why Choose Our Rebuilt 25313185 OEM Injectors?
Our fuel injectors are sourced from genuine original cores and rebuilt in-house here in our Florida warehouse. Every set is ASNU flow tested, matched, and prepared with precision. No shortcuts. No outsourcing. Just reliable performance backed by real quality work.
🎥 Flow Rate Testing in Action
See injector flow tested before shipping — each GM 25313185 injector is flow matched using professional ASNU test equipment:
🧪 Spray Pattern Failures in Slow Motion
This video shows actual GM 25313185 injectors failing spray pattern tests — a visual demonstration of why flow testing matters. Each set we sell is inspected, cleaned, and professionally rebuilt to prevent issues like this:
Fuel Injector Part # Interchange
Show/Hide Full Vehicle Fitment
Lifetime Warranty
Buy with confidence: Every injector includes a lifetime warranty and an unbeatable 60-day hassle-free return period. No RMA. No restocking fees. No stress.
🚚 FREE Fast FedEx 2-Day Shipping
Estimated arrival by Tuesday, June 17
🕒 Orders placed now will ship today
💨 $42.95 FedEx Overnight – arrives by Monday, June 16
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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