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  3. FEL PRO SX-3522

FEL-PRO SX-3522 Fuel Injector Ring Air Pw Kit

fits model: 1500, Yukon. make: Gmc. year: 2000–2013.

Sx-3522 Fel-pro Fuel Injector O-ring Kit For 2000-2013 Gmc Yukon Xl 1500 Air Pw

( Brand: Fel-pro ), ( Manufacturer Part Number: SX-3522 ), ( Type: Fuel Injector O-ring Kit ), ( Item Weight: 0.0500 ), ( Manufacturer Warranty: 1 Year ), ( Item Length: 6.000 ), ( Item Width: 4.000 ), ( Item Height: 0.160 ), ( Ipn: C499 56-20 ), ( Placement On Vehicle: Air Fuel Delivery Service Kits ), ( Compatible Model: Yukon Xl 1500 ), ( Compatible Year: 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Fel-pro Fuel Injector O-ring Kit )

Review FEL PRO Fuel Injector O ring Kit Gmc Xl Air Pw fits YUKON 1500 2000–2013

The **Fel-Pro SX-3522 Fuel Injector O-Ring Kit** is a meticulously engineered aftermarket solution designed specifically to address the critical sealing needs of the fuel injectors in **2000 2013 GMC Yukon XL and Sierra 1500** models equipped with **Air Powered (Air PW) fuel systems**. This high-performance kit is crafted to ensure a perfect, leak-free fit across the injector s critical sealing surfaces, preventing fuel leaks, vacuum loss, and potential engine performance issues that can arise from degraded or improperly sized O-rings. Engineered from **high-quality, fuel-resistant elastomers**, these O-rings are formulated to withstand the harsh conditions of modern fuel systems, including exposure to ethanol-blended fuels, high-pressure fuel delivery, and temperature fluctuations. The kit includes **all necessary O-rings** including the **injector body O-ring, fuel rail O-ring, and any additional sealing components** required for a complete, factory-like restoration ensuring a seamless installation process. Whether you're performing a routine maintenance overhaul, addressing a persistent fuel leak, or upgrading your vehicle s fuel system for improved reliability, the Fel-Pro SX-3522 kit delivers the precision and durability needed to maintain optimal engine function. Built to meet or exceed OEM specifications, this kit is a trusted choice among mechanics and DIY enthusiasts alike, offering a cost-effective way to restore fuel injector integrity and extend the lifespan of your GMC s fuel delivery components.

**Pros and Cons of buying a Fel-Pro SX-3522 Fuel Injector O-Ring Kit for 2000 2013 GMC Yukon XL 1500 (Air/PW)**

### **Pros**

1. **High-Quality Materials** Fel-Pro is a well-regarded brand known for durable, heat-resistant, and fuel-resistant elastomers designed to withstand the demanding conditions of fuel systems. Their o-rings are engineered to prevent leaks and maintain proper sealing under pressure.

2. **Compatibility** The SX-3522 kit is specifically designed for GM applications, including the 2000 2013 GMC Yukon XL 1500 with Air/PW fuel systems. This ensures a proper fit with the vehicle s fuel injectors, reducing the risk of installation errors.

3. **Prevents Fuel Leaks** Fuel injector o-rings degrade over time due to heat, fuel additives, and engine wear. Replacing them with a new kit helps prevent fuel leaks, which can cause fuel odors, wet engine compartments, or even fire hazards in severe cases.

4. **Improves Engine Performance** A leaky injector o-ring can lead to inconsistent fuel delivery, reducing engine efficiency, power, or causing rough idling. Replacing them ensures optimal fuel flow and combustion.

5. **Easy Installation** The kit typically includes all necessary o-rings for the fuel injectors, simplifying the replacement process. Many users report that replacing o-rings is a straightforward DIY task, especially with the right tools (e.g., injector removal tool, torque wrench).

6. **Cost-Effective Maintenance** Compared to the potential cost of repairing fuel system damage (e.g., contaminated fuel lines, damaged injectors, or engine issues from poor fuel delivery), replacing o-rings is a relatively inexpensive preventive measure.

7. **Warranty and Reliability** Fel-Pro products often come with manufacturer warranties, and their reputation for reliability makes them a trusted choice for mechanics and DIY enthusiasts alike.

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### **Cons**

1. **Limited Longevity Without Maintenance** While high-quality, o-rings still degrade over time, especially if the vehicle has high mileage or if fuel additives (like ethanol blends) accelerate wear. Regular maintenance (e.g., fuel system cleaning) can extend their lifespan but won t make them last indefinitely.

2. **Potential for Over-Tightening** If injectors are not removed and reinstalled carefully, over-tightening can damage the o-rings or the injector threads. Using a torque wrench and following manufacturer specifications is critical to avoid this.

3. **DIY Difficulty for Beginners** While many find the replacement straightforward, removing fuel injectors requires precision and familiarity with fuel system handling. Beginners may struggle with steps like disconnecting fuel lines, removing the intake manifold, or handling fuel pressure safely.

4. **Cost of Additional Tools** If you don t already own them, you may need specialized tools such as an injector removal tool, torque wrench, and possibly a fuel pressure gauge. These can add to the upfront cost, though they re reusable for future projects.

5. **Risk of Contamination** If old o-rings are not fully removed or if debris enters the fuel system during installation, it could clog injectors or fuel lines. Thorough cleaning of the injector ports and fuel system is essential to mitigate this risk.

6. **Ethanol Compatibility Concerns** Modern fuels often contain ethanol, which can degrade rubber o-rings faster than pure gasoline. While Fel-Pro s o-rings are designed to handle ethanol, their lifespan may still be shorter than in older fuel systems.

7. **Time-Consuming Process** Replacing injector o-rings can take several hours, especially for those unfamiliar with the procedure. This may not be ideal for those with limited time or patience for mechanical work.

---

### **Conclusion**

The **Fel-Pro SX-3522 Fuel Injector O-Ring Kit** is a solid choice for maintaining or restoring the fuel system of a 2000 2013 GMC Yukon XL 1500 with an Air/PW fuel system. Its high-quality materials, compatibility, and preventive benefits make it a worthwhile investment for preventing leaks, improving performance, and avoiding costly fuel system failures. However, the success of the installation depends on careful execution, proper tools, and attention to detail.

For most DIYers with moderate mechanical experience, this kit is a practical and cost-effective solution. Those who are unsure about the process may benefit from consulting a professional mechanic to avoid mistakes like over-tightening or contamination.

### **Recommendation**

**Buy the Fel-Pro SX-3522 kit if:**

- You re experiencing fuel leaks, rough idling, or poor engine performance that could be related to worn injector o-rings.

- You re comfortable with basic mechanical work or are willing to invest time in learning the process.

- You want to perform preventive maintenance to avoid more expensive fuel system issues down the road.

**Consider alternatives or professional help if:**

- You lack confidence in handling fuel system components or removing injectors.

- Your vehicle has high mileage or severe fuel system degradation, which may require additional repairs (e.g., injector cleaning or replacement).

- You re on a tight schedule and prefer to outsource the job to a trusted mechanic.

**Final Verdict:** For most owners of this vehicle range, the Fel-Pro kit is a **reliable and recommended upgrade**, provided the installation is done correctly. Pair it with a fuel system cleaner (like Seafoam) to further protect the injectors and fuel lines.

Details:

Fel-Pro Fuel Injector O-Ring Kit for 2000 - 2013 GMC Yukon XL 1500 Air pw: Status: In Stock.

part #: sx3522 prices

  • $21.13-$33.73

specifications carfuelinjector:

  • for models: 1500, Yukon
  • for makes: Gmc
  • for years: 2000-2013
  • brand: Fel-pro
  • mpn: Sx-3522
  • type: Fuel Injector O-ring Kit
  • item weight: 0.0500
  • manufacturer warranty: 1 Year
  • item length: 6.000
  • item width: 4.000
  • item height: 0.160
  • ipn: C499 56-20
  • placement on vehicle: Air Fuel Delivery Service Kits
  • compatible model: Yukon Xl 1500
  • compatible year: 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Fel-pro Fuel Injector O-ring Kit

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  • city: Indianapolis, Indiana
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  • availability: In Stock
  • quantity: 10
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  • started: February 14, 2026
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general carfuelinjector:

  • condition: New
  • Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
for models: 1500, yukon, for makes: gmc, for years: 2000-2013, type: fuel injector o-ring kit, item weight: 0.0500, manufacturer warranty: 1 year, item length: 6.000, item width: 4.000, item height: 0.160, placement on vehicle: air fuel delivery service kits, compatible model: yukon xl 1500, compatible year: 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine fel-pro fuel injector o-ring kit,
category: auto parts > air fuel delivery > fuel injection parts > fuel injectors, sku: 14717333846077603,
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