Suburban Fuel Injectors
Chevy Suburban Fuel Injectors
Need replacement fuel injectors for your Chevrolet Suburban? Whether you're restoring an older 2500 model Suburban or replacing GDI injectors in a newer Chevy Suburban, we've got genuine factory originals. Selectively sourced — flow matched, ultrasonically cleaned, and ready to drop in.
🔹 Delphi 12580681 — (2007–2009) non-flex 5.3L 6.0L
Fits 2007, 2008, & 2009 non-flex fuel Suburban models with non-flex 5.3L & 6.0L engines:
- 2007–2009: Suburban Non-Flex 5.3L
- 2007–2009: Suburban 6.0L
OEM Delphi EV6 injectors — rebuilt and flow matched. Direct factory fit.
▶ Shop 2007–2009 Suburban 1500 5.3L non-flex 6.0L injectors
🔹 Denso 12594512 — (2007–2009) 5.3L LMG Flex Fuel
For flex-fuel Suburban 1500 models equipped with the LMG 5.3L V8:
- 2007–2009: Suburban 1500 FFV (Flex Fuel)
Rebuilt genuine Denso GM injectors. Ethanol compatible, spray pattern verified, and matched to OE spec.
▶ Buy 2007–2009 Suburban Flex Fuel 12594512 injectors
🔹 Delphi 12613411 — (2010–2014) 5.3L
These injectors were shared on both gas & flex engines in 2010-2014 Suburban 5.3L engines.
- 2010–2014: Suburban 2500 5.3L
Genuine GM cores, rebuilt and flow matched to exacting standards.
▶ Get 2010-2014 Suburban Injectors - 12613411
🔹 Delphi 25317628 — (2000–2006) 5.3L non-flex 6.0L
Factory original replacement for early Gen III Suburban injectors (5.3L or 6.0L MPFI):
- 2000–2006: Suburban 1500/2500 5.3L non-flex
- 2000–2006: Suburban 1500/2500 6.0L
These factory original Suburban injectors are popular sellers. Owners as reporting lots of issues as they are hitting the 20-25+ year mark on their Suburbans. We really are seeing a lot of these sets needing replacement.
▶ See Specs for Delphi 25317628 – MPFI Suburban 5.3L/6.0L
🔹 Denso 25326903 — (2000–2006) 5.3L flex-fuel
Chevy Suburban flex-fuel 5.3L models in 2002-2006 came with Denso 25326903 injectors.
- 2002–2006: Suburban 1500/2500 5.3L flex-fuel
Rebuilt GM Denso injectors. Flow matched, spray pattern verified, and ready for hassle free installation.
▶ Shop 2002-2006 Suburban Injectors - 25326903
🔹 Delphi 17124531 — 8.1L Vortec (2001–2006 Suburban 2500)
This injector fits heavy-duty Suburban 2500 models equipped with the 8.1L Vortec V8:
- 2001–2006: Suburban 2500 8.1L
OEM GM Delphi 17124531 — Professionally rebuilt, tested, and matched to within ±2% flow variance.
▶ See Fitment & Genuine for Delphi 17124531 – 8.1L Suburban
🔹 Bosch 4-Hole Upgrade — 7.4L Vortec (1996–2000)
For Suburban 2500 models with the 7.4L (454cid) Vortec engine, this Bosch upgrade delivers superior fuel atomization and improved idle quality without tuning:
- Fitment: 1996–2000 Suburban 2500 (7.4L Vortec)
Modern 4-hole nozzle design for better spray pattern. Plug-and-play compatibility with no adapters or ECU changes needed.
Exact fit, Direct replacement — no tuning required.
▶ Shop Bosch 4-Hole Upgrade for 7.4L Suburban (1996–2000)
🔹 Rochester OEM — 7.4L Vortec (1996–2000)
Factory-spec Rochester injectors rebuilt to OEM standards. The best choice for those wanting to use the factory injectors:
- Fitment: 1996–2000 Suburban 2500 (7.4L Vortec)
▶ Buy OEM Rochester Injectors for 7.4L Suburban
Quick Fitment
| Part Number | Years | Engine | Fuel Type | Link |
|---|---|---|---|---|
| Delphi 12580681 | 2007–2009 | 5.3L & 6.0L | Gasoline (non-flex) | Non-flex 2007-2009 |
| Denso 12594512 | 2007–2009 | 5.3L | Flex Fuel (FFV) | Flex fuel 2007-2009 |
| Delphi 12613411 | 2010–2014 | 5.3L | Gas+Flex | 2010-2014 Suburban injectors |
| Delphi 25317628 | 2000–2006 | 5.3L / 6.0L | Gasoline (non-flex) | Non-flex 2000-2006 |
| Denso 25326903 | 2002–2006 | 5.3L | Flex Fuel (FFV) | 2002-2006 Flex Fuel |
| Delphi 17124531 | 2001–2006 | 8.1L | Gasoline (non-flex) | 8.1L Suburban injectors |
| Bosch 4-Hole Upgrade | 1996–2000 | 7.4L | Plug-Play Upgrade | 454 Bosch Upgrade Injectors |
| Rochester OEM | 1996–2000 | 7.4L | Factory OEM | OEM 454 Injectors |
Symptoms of Failing Injectors
- Rough idle, misfires, or stumbling
- Hard cold starts or extended crank times
- Check engine codes like P0171, P0174, or P0300–P0308
- Black smoke or rich fuel odor
- Poor MPG or loss of power under load
Why Buy From Precision Auto Injectors?
- Genuine OEM cores – no offshore clones
- Ultrasonically cleaned, spray pattern verified, and flow matched
- Backed by our lifetime warranty and 60-day no-hassle returns
Helpful Links
Frequently Asked Questions – Chevy Suburban Fuel Injectors
How do I know which Suburban fuel injector fits my vehicle?
Fitment depends on whether your Suburban is flex fuel or gasoline-only. Select the proper engine in Year/Make/Model search tool
Do your injectors fit flex-fuel Chevrolet Suburbans (FFVs)?
Yes. We carry OEM Suburban flex-fuel injectors specifically listed as flex fuel the title and descriptions. Look for “flex-fuel” in the product title or description. Use our Year/Make/Model to be brought to proper page
Are the Suburban injectors you sell new or rebuilt?
All injectors are professionally rebuilt using genuine OEM cores. Each one is ultrasonically cleaned, spray pattern verified, flow matched, and backed by a lifetime warranty. We do not sell offshore replicas or white-box clones.
Can I install these injectors without tuning or modifications?
Yes. If you're replacing OEM injectors with our matched OEM units, no tuning is required. If you're upgrading to Bosch injectors on your 7.4L, no tuning is required. It's plug and play.
What are common symptoms of a failing Suburban fuel injector?
Common signs include rough idle, poor fuel economy, engine misfire codes (P0300–P0308), fuel smells, and hard starts. You can feel uneven fuel delivery easiest at idle. See if your steering wheel has a vibration.
How can I tell if my Suburban is flex fuel or not?
Check the 8th digit of your VIN or look for a yellow gas cap or E85 label. We can help you so contact us, or use our Year/Make/Model search tool
Do you sell the clips or seals I need too?
Every injector set comes with new o-rings pre-installed. Need clips? Contact us — we’ll include them if we have them.
How hard is it to replace fuel injectors on a Chevrolet Suburban?
Some models such as the 5.3L and 6.0L Suburban are easier. However, it’s still a moderate job for most DIYers. If you're not comfortable with basic engine work, we recommend professional installation. No tuning required with our genuine factory original replacements.