Escalade Fuel Injectors
Choosing the correct Cadillac Escalade fuel injectors depends on the year, make, model, and engine size. This guide covers rebuilt OEM injector sets for select 2002–2009 Cadillac Escalade, ESV, EXT, and Hybrid applications, plus a high-flow Denso option for compatible highly modified LSx-powered builds.
View the Cadillac Escalade injector fitment guide
Cadillac used different fuel injector designs as the Escalade moved from the 5.3L and 6.0L engines of the earlier generation to the 6.2L engine and 6.0L Hybrid powertrain. Two injectors may physically resemble one another while having different flow rates, electrical characteristics, connectors, or engine calibrations.
Precision Auto Injectors rebuilds genuine factory-original Delphi and Denso fuel injectors. Each complete set is professionally cleaned, tested, serviced, and flow matched before shipment.
Before ordering: Do not choose injectors by engine size alone. Confirm the year, make, and model and if engine size is the 5.3L check if flex fuel or gasoline.
How to Find the Correct Fuel Injectors for Your Cadillac Escalade
Start with the Year, Make, and Model search tool at the top of our website. Compare the recommended injector with your original part and complete vehicle information.
Verify all of the following before placing your order:
- Escalade configuration: standard, ESV, EXT, or Hybrid
- Model year
- 5.3L, 6.0L, or 6.2L V8 engine
- Gasoline, Hybrid, or Flex Fuel
- if addition help is needed please use our helpful guide below
Cadillac Escalade Fuel Injectors by Year and Engine
2002–2006 Cadillac Escalade Injectors — Delphi 25317628
Genuine Delphi 25317628 fuel injectors fit compatible 2002–2006 Cadillac Escalade, 2003–2006 ESV, and 2002–2006 EXT applications. Standard Escalades use listed 5.3L and 6.0L V8 applications, while the listed ESV and EXT applications use the 6.0L V8.
- OEM part number: 25317628
- Manufacturer: Delphi / GM
- Applications: Escalade 2002–2006 ESV and EXT
- Engines: 5.3L and 6.0L V8
- Fuel system: Gasoline / non-flex factory applications
- Injector type: Factory-style OEM replacement
- Quantity: Set of 8
These stock injectors do not require tuning when installed in a vehicle originally equipped with Delphi 25317628. Do not substitute a high-flow injector or a different GM injector number without verifying the calibration and complete application.
Shop Escalade 25317628 fuel injectors
2007–2008 Cadillac Escalade 6.2L Injectors — Delphi 12580681
Genuine Delphi 12580681 fuel injectors fit compatible 2007–2008 Cadillac Escalade, ESV, and EXT applications equipped with the 6.2L V8. The same injector is also listed for the 2009 Escalade 6.0L V8 Hybrid.
- OEM part number: 12580681
- Manufacturer: Delphi / GM
- Common applications: 2007–2008 Escalade / ESV / EXT with the 6.2L V8
- Hybrid application: 2009 Escalade 6.0L V8 Hybrid
- Flow rating: Approximately 30 lb/hr at 58 PSI
- Connector: EV6 / USCAR
- Injector type: Factory-style OEM replacement
- Quantity: Set of 8
No tuning is required when these injectors replace original 12580681 injectors in a listed factory application. The 2009 Hybrid fitment should not be confused with a standard 2009 6.2L Escalade application; verify the powertrain and original number.
Shop Escalade 12580681 fuel injectors
84 lb/hr High-Flow Denso Injectors for Modified Escalade LS Builds
Decapped genuine OEM Denso injectors are available for compatible highly modified GM LSx builds. They are USCR/ev6 connectors that flow approximately 84 lb/hr at 58 PSI and can support gasoline, Flex Fuel
- Manufacturer: Genuine Denso / GM OEM cores
- Flow rating: Approximately 84 lb/hr at 58 PSI
- Common engine family: Compatible modified GM LSx 4.8L, 5.3L, and 6.0L builds
- Fuel use: Gasoline, Flex Fuel, or E85 as professionally configured
- Injector type: Decapped high-flow performance injector
- Quantity: Set of 8
- Tuning: Required
Professional tuning is required. These are not stock replacement injectors. The ECU must be calibrated with the correct injector data, and the pump, lines, regulator, electrical system, and remaining fuel components must be capable of supporting the engine’s fuel demand.
The 84 lb/hr listing is not an automatic fitment for every Escalade or every 6.2L application. Confirm injector dimensions, connector, fuel rail, fuel pressure, engine combination, and tune with your engine builder or tuner before ordering.
Shop 84 lb/hr high-flow Escalade injectors
Cadillac Escalade Fuel Injector Fitment Guide
This chart is a general reference for the three products listed on this page. Always confirm the OEM number, electrical connector, engine, fuel system, and complete vehicle application before ordering.
Symptoms of Failing Cadillac Escalade Fuel Injectors
A restricted, leaking, electrically failing, or uneven injector may contribute to noticeable drivability problems:
- Rough or unstable idle
- Hard starting or extended cranking
- Hesitation during acceleration
- Loss of power under load
- Poor fuel economy
- Strong gasoline odor
- Random or cylinder-specific misfires
- P0300 through P0308 trouble codes
- Rich or lean fuel-trim codes
- Black exhaust smoke
- Fuel-contaminated engine oil
- Check Engine Light
These symptoms can have more than one cause. Ignition components, intake leaks, fuel pressure, compression, wiring, oxygen sensors, and other systems may create similar problems. Proper diagnosis is recommended before replacing parts.
Why Flow Matching Matters on an Escalade V8
Each Escalade cylinder depends on its injector to deliver a consistent amount of fuel. A restricted injector can cause one cylinder to run lean or misfire. A leaking or excessive-flow injector may cause a rich cylinder, difficult starting, fuel odor, carbon buildup, or fuel dilution in the engine oil.
Testing the injectors as a complete set makes it possible to compare performance under the same operating conditions. Precision Auto Injectors dynamically tests and flow matches each set to support balanced cylinder-to-cylinder fuel delivery.
Our Cadillac Escalade Injector Rebuilding Process
- Visual inspection of each injector body, connector, and nozzle
- Electrical coil and opening-response testing
- High-pressure leak and leak-down testing
- Ultrasonic cleaning
- Reverse flushing to remove internal contamination
- Replacement of filters, O-rings, caps, and spacers as applicable
- Dynamic and static flow testing on professional ASNU equipment
- Spray-pattern verification
- Flow matching across the complete set
- Final quality inspection before shipment
Why Choose Genuine OEM Escalade Injectors?
Genuine Delphi and Denso injectors were engineered for their approved GM fuel systems. Correct OEM injectors provide the intended dimensions, connector design, electrical behavior, opening response, fuel delivery, and spray pattern.
Low-cost replica injectors can look similar externally while using different internal components and calibration. Differences in coil quality, opening time, flow rate, or spray targeting may create drivability problems even when the injector physically fits. Rebuilt genuine OEM cores retain the factory injector design.
Why Buy Escalade Injectors From Precision Auto Injectors?
- Genuine Delphi and Denso OEM injector cores
- Professionally rebuilt in-house
- ASNU bench tested
- Ultrasonically cleaned and reverse flushed
- Electrically tested
- Leak tested and spray-pattern verified
- Dynamically flow tested
- Flow matched as a complete set of eight
- New service components installed as applicable
- Lifetime replacement warranty
- 60-day hassle-free returns
Frequently Asked Questions About Cadillac Escalade Fuel Injectors
Which fuel injectors fit a 2002–2006 Cadillac Escalade?
Compatible 2002–2006 Escalades use genuine Delphi 25317628 injectors. Listed applications include 5.3L and 6.0L standard configurations, 2003–2006 ESV 6.0L, and 2002–2006 EXT 6.0L. Match the original injector number.
Which injectors fit a 2007 or 2008 Escalade 6.2L?
Compatible 2007–2008 Escalade, ESV, and EXT 6.2L applications use genuine Delphi 12580681 injectors. Confirm the number on the original injector before ordering.
Which injectors fit a 2009 Cadillac Escalade Hybrid?
The genuine Delphi 12580681 set is listed for the 2009 Cadillac Escalade with the 6.0L V8 Hybrid powertrain. This listing should not be assumed to cover every standard 2009 Escalade 6.2L application.
Are all Cadillac Escalade fuel injectors the same?
No. Escalade injector designs vary by year, engine, body configuration, fuel system, and calibration. For example, compatible 2002–2006 models may use 25317628, while compatible 2007–2008 6.2L applications use 12580681.
Do stock replacement Escalade injectors require tuning?
Factory injectors normally do not require tuning when the original injector number and complete vehicle application match. Tuning may be required if a different injector, engine combination, fuel pressure, or fuel type is used.
Do the 84 lb/hr Escalade injectors require tuning?
Yes. The decapped Denso 84 lb/hr injectors deliver substantially more fuel than the stock injectors and require professional ECU calibration. The complete fuel system must also be sized for the engine and fuel being used.
Can I use the 84 lb/hr injectors with E85?
The high-flow Denso injectors can be used in properly configured Flex Fuel or E85 builds. Injector compatibility, fuel-system materials, pump capacity, flow demand, and ECU tuning must all be confirmed by the builder or tuner.
Should I replace one injector or the complete set?
A single injector can be replaced when it has been correctly diagnosed and the remaining injectors are known to be healthy. Replacing the complete set provides injectors that have been cleaned, tested, and matched under the same conditions, which can be helpful on a higher-mileage V8.
Are these Cadillac Escalade injectors new or rebuilt?
The sets on this page use genuine OEM injector cores that have been professionally rebuilt, cleaned, tested, and flow matched. Review each product page for its exact specifications and included service components.
What should I send if I cannot identify my Escalade injectors?
Send the year make model configuration, engine size, fuel system, any injector number you can read, and clear photographs of the injector body, connector, and nozzle. Modified vehicles should also include details about the engine, fuel rail, fuel pressure, fuel type, and current tune.
Shop Cadillac Escalade Fuel Injectors
Browse rebuilt genuine OEM injectors for Cadillac Escalade SUVs and performance builds. For the most accurate result, use the Year, Make, and Model search tool and compare the recommended set with the number printed on your original injector.