Set of 6 rebuilt GM 12634126 fuel injectors on workbench - tested and flow matched

Why Rebuilt 12634126 Fuel Injectors Are a Smart Alternative to New.


Can fuel injectors be rebuilt?

Yes—and when done right, rebuilding fuel injectors is one of the smartest, most cost-effective ways to extend the life of your engine without compromising on performance.

At Precision Auto Injectors, we specialize in OEM-quality rebuilds that restore each injector to like-new performance. The process isn’t just about swapping out O-rings—it’s a meticulous, multi-step service that includes:

  • Precision ultrasonic cleaning to remove carbon, varnish, and ethanol-related deposits inside and out

  • Back-flushing and purging to clear out trapped debris

  • Leak, resistance, and spray pattern testing to verify performance under real-world pressure

  • New seals, O-rings, filters, and caps to ensure a tight seal and smooth installation

  • Flow matching in sets so every injector delivers consistent fuel volume

 

Case Study: Rebuilt GM 12634126 Injectors vs. OEM

If you’re comparing options for replacing the GM 12634126 fuel injectors used in 3.0L 3.6L GDI engines, this real-world case study might save you hundreds.

OEM GM Pricing Breakdown

As of April 2025, the GM Genuine Parts Direct Fuel Injector Assembly (Part #12634126) is listed at:

  • $214.40 per injector (source)
  • Full set of 6 injectors: $1,286.40 MSRP
Screenshot of GM OEM fuel injector pricing on GMParts.com
Figure 1: Price listed on GMParts.com for GM 12634126 as of April 23, 2025. Used under fair use for educational and comparative purposes.

Precision Auto Injectors Solution

We offer a fully rebuilt, professionally cleaned, and flow-matched set of 6 OEM GM 12634126 injectors for just:

  • $259.99 per set of 6shop now
  • Savings: Over $1,000 vs OEM MSRP
Rebuilt GM 12634126 fuel injector set - 6 shown
Figure 2: Our rebuilt GM 12634126 set, tested and guaranteed for performance at a fraction of the OEM price.

Conclusion: For budget-conscious drivers, shops, and rebuilders, our rebuilt GM 12634126 injectors deliver OEM performance at a fraction of the price. Backed by precision flow-matching and professional cleaning, these injectors are a smart upgrade with no compromises.

Pricing sourced from publicly available listings as of April 2025. Images used under fair use for commentary and comparison in an educational context.

12634126 GDI Rebuilt Fuel Injector Specifications

  • Overall Length: 3.355"
  • Measured Reference Image:
    GM 12634126 fuel injector full length measurement
  • Connector Style: USCAR
  • Injector Type: Gasoline Direct Injection (GDI)
  • Fitment: YL6 Engine Code and other 3.6L GM applications
Year Range Make Model Engine
2018–2024 Buick Enclave 3.6L 217CID V6 GAS DOHC
2012 Buick LaCrosse 3.6L 217CID V6 FLEX DOHC
2013–2016 Buick LaCrosse 3.6L 217CID V6 FLEX DOHC- Federal w/o PZEV Emissions
2012 Buick LaCrosse 3.6L 217CID V6 GAS DOHC
Show full vehicle fitment list
2016–2016 Buick LaCrosse 3.6L 217CID V6 GAS DOHC - Federal w/o PZEV Emissions
2013–2015 Cadillac ATS 3.6L 217CID V6 FLEX DOHC- Federal w/o PZEV Emissions
2012–2014 Cadillac CTS 3.0L 182CID V6 GAS DOHC
2013–2013 Cadillac CTS 3.6L 217CID V6 FLEX DOHC
2014–2015 Cadillac CTS 3.6L 217CID V6 FLEX DOHC- Federal w/o PZEV Emissions
2012–2013 Cadillac CTS 3.6L 217CID V6 GAS DOHC
2014–2015 Cadillac CTS 3.6L 217CID V6 GAS DOHC - Federal w/o PZEV Emissions
2012–2016 Cadillac SRX 3.6L 217CID V6 FLEX DOHC
2014–2016 Cadillac SRX 3.6L 217CID V6 GAS DOHC
2013–2013 Cadillac XTS 3.6L 217CID V6 GAS DOHC
2014–2017 Cadillac XTS 3.6L 217CID V6 GAS DOHC - Federal w/o PZEV Emissions
2012–2015 Chevrolet Camaro 3.6L 217CID V6 GAS DOHC
2012–2017 Chevrolet Caprice 3.6L 217CID V6 FLEX DOHC
2012–2013 Chevrolet Captiva Sport 3.0L 182CID V6 FLEX DOHC
2012–2014 Chevrolet Captiva Sport 3.0L 182CID V6 GAS DOHC
2015–2016 Chevrolet Colorado 3.6L 217CID V6 GAS DOHC
2012–2012 Chevrolet Equinox 3.0L 182CID V6 FLEX DOHC
2012–2012 Chevrolet Equinox 3.0L 182CID V6 GAS DOHC
2013–2017 Chevrolet Equinox 3.6L 217CID V6 FLEX DOHC
2013–2017 Chevrolet Equinox 3.6L 217CID V6 GAS DOHC
2015–2017 Chevrolet Impala 3.6L 217CID V6 BI-FUEL DOHC - Federal w/o PZEV Emissions
2012–2020 Chevrolet Impala 3.6L 217CID V6 FLEX DOHC- Federal w/o PZEV Emissions
2012–2020 Chevrolet Impala 3.6L 217CID V6 GAS DOHC - Federal w/o PZEV Emissions
2014–2016 Chevrolet Impala Limited 3.6L 217CID V6 FLEX DOHC- Federal w/o PZEV Emissions
2018–2023 Chevrolet Traverse 3.6L 217CID V6 GAS DOHC
2015–2016 GMC Canyon 3.6L 217CID V6 GAS DOHC
2012–2012 GMC Terrain 3.0L 182CID V6 FLEX DOHC
2012–2012 GMC Terrain 3.0L 182CID V6 GAS DOHC
2013–2017 GMC Terrain 3.6L 217CID V6 FLEX DOHC
2013–2017 GMC Terrain 3.6L 217CID V6 GAS DOHC

Frequently Asked Questions About Rebuilt 12634126 Fuel Injectors

Are rebuilt 12634126 fuel injectors any good?

Absolutely. A properly rebuilt fuel injector—like the ones we offer—is fully disassembled, ultrasonically cleaned, bench-tested on an ASNU machine, and rebuilt with new internal filters and seals. They meet or exceed OEM specs, often performing better due to tighter flow matching.

Can 12634126 fuel injectors be rebuilt?

Yes, and it’s a common, cost-effective solution. Rebuilding involves precision ultrasonic cleaning, leak testing, and replacement of all wearable components. Our process restores flow consistency and eliminates problems caused by deposits or failed internal filters.  

What is the life expectancy of a rebuilt 12634126 injector?

With proper fuel quality and maintenance, a rebuilt injector can last just as long as a new one. Our customers frequently get 100,000+ miles from rebuilt units without issue—often more.

Can I drive with a bad 12634126 fuel injector?

Technically yes, but it's risky. A clogged or leaking injector can cause lean conditions, misfires, and catalytic converter damage. Driving with a bad injector often leads to bigger, more expensive repairs. We recommend replacing or servicing them all immediately.

Do fuel injector cleaners work?

For light deposits, yes—but they won’t solve issues caused by mechanical wear, stuck pintles, or degraded internal filters. If your injector is already failing, cleaning solutions are unlikely to bring it back to life. That’s where fresh rebuilt sets come in.

Should I replace all fuel injectors if one is bad?

Absolutely. If you're already removing the fuel rail, it’s often smarter to replace all injectors—especially on higher mileage vehicles. Mismatching robs your engine's performance. We sell tested, flow-matched sets to ensure balanced fuel delivery across cylinders.

What will ruin fuel injectors?

Contaminated fuel, poor filtration, ethanol-heavy fuels, and long storage periods without stabilizers. GDI injectors in particular are sensitive and require clean, high-quality fuel to operate reliably over time.

How long do remanufactured injectors last?

Just as long as new injectors when rebuilt properly. Every set we sell comes with a lifetime warranty—so you're covered for the long haul.

Upgrade Smart—Shop Rebuilt GDI Injectors

Click here to order a professionally rebuilt set of 12634126 injectors for just $259.99 »

[1] Price Source: Screenshot from GM Parts Direct, accessed April 23, 2025. Image used under Fair Use for comparative commentary purposes only. All trademarks and copyrights belong to their respective owners.

 

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