1. Fuel Injectors Offers
  2. sku: 15162338518201892
  3. FEL PRO SX-9684

FEL-PRO SX-9684 Fuel Injector Ring Cimarron Air Wc Kit 2.8L V6

fits make: Cadillac. year: 1985–1988.

Sx-9684 Fel-pro Fuel Injector O-ring Kit For 1985-1988 Cadillac Cimarron 2.8l V6 Air Wc

( Brand: Fel-pro ), ( Manufacturer Part Number: SX-9684 ), ( Type: Fuel Injector O-ring Kit ), ( Item Weight: 0.0500 ), ( Manufacturer Warranty: 1 Year ), ( Item Height: 0.160 ), ( Item Length: 6.000 ), ( Item Width: 4.000 ), ( Ipn: C434 48-11 ), ( Placement On Vehicle: Air Fuel Delivery Service Kits ), ( Compatible Model: Cimarron ), ( Compatible Year: 1988 1987 1986 1985 ), ( 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 Cadillac Cimarron 2.8l V6 Air Wc fits 1985–1988

The **Fel-Pro SX-9684 Fuel Injector O-Ring Kit** is a meticulously engineered replacement solution designed specifically for the **1985 1988 Cadillac Cimarron 2.8L V6 Air Injection (Air WC) fuel injection system**, ensuring a precise and reliable seal to prevent fuel leaks, contamination, and performance degradation. This high-performance kit includes a **comprehensive set of O-rings, seals, and gaskets** tailored to the exact specifications of the Cimarron s fuel rail assembly, throttle body, and injector mounting hardware, eliminating the risk of cross-contamination from aftermarket or universal parts. Crafted from **high-quality nitrile rubber**, these O-rings are engineered to withstand the harsh conditions of fuel system operation, including exposure to ethanol-blended fuels, high-pressure fuel delivery, and temperature fluctuations, while maintaining exceptional resistance to swelling, cracking, and degradation over time. The kit s **precision-molded components** are designed to fit snugly within the fuel injector ports, throttle body connectors, and fuel rail interfaces, ensuring a **zero-leak seal** that preserves fuel efficiency, engine performance, and emissions compliance. Whether performing routine maintenance, addressing a fuel leak, or upgrading during a fuel system overhaul, this Fel-Pro kit provides the **durability and reliability** expected from a brand trusted by professional mechanics and automotive enthusiasts alike. Its **universal compatibility** with the Cimarron s Air WC fuel injection system including the **GM 2.8L V6** found in this model makes it an indispensable choice for those seeking a **long-lasting, leak-free solution** without compromising on quality.

The **Fel-Pro SX-9684 Fuel Injector O-Ring Kit** is a common choice for replacing O-rings on the **1985 1988 Cadillac Cimarron 2.8L V6 Air Injection Control (AIC) system**, but it has both advantages and drawbacks depending on your needs, budget, and experience level.

### **Pros of buying a Fel-Pro SX-9684 Kit**

1. **Compatibility** Fel-Pro is a well-known brand that specializes in high-quality gaskets and seals, and this specific kit is designed for the **GM 2.8L V6 fuel injection system**, including the AIC (Air Injection Control) ports. It includes the necessary O-rings for the fuel injectors, AIC solenoids, and related components, ensuring a proper fit.

2. **Reliability** Fel-Pro products are generally durable and resistant to fuel and heat, reducing the risk of leaks over time. Their materials are designed to withstand the conditions inside an engine bay, which helps prevent premature failure.

3. **Ease of Installation** The kit comes with all the required O-rings pre-packaged, so you won t have to hunt for individual parts. This makes the job simpler, especially if you re replacing multiple O-rings at once (e.g., during a fuel system service or injector swap).

4. **Cost-Effective for Basic Repairs** Compared to some aftermarket or OEM alternatives, Fel-Pro offers a good balance between price and quality. For a relatively inexpensive kit, it provides a solid solution for sealing fuel injectors and AIC components.

5. **Widely Available** Fel-Pro parts are stocked by most auto parts stores (AutoZone, O Reilly, RockAuto, etc.), making it easy to purchase without special ordering.

6. **Prevents Fuel Leaks** If your Cimarron is experiencing **fuel injector leaks, rough idle, or misfires**, replacing the O-rings can resolve these issues. A properly sealed system ensures fuel flows correctly and prevents contamination of the engine bay.

7. **Long-Term Performance** Since the O-rings are designed to resist fuel and heat, they can last for the duration of the repair unless the engine is subjected to extreme conditions (e.g., prolonged high RPM, fuel contamination, or improper installation).

---

### **Cons of buying a Fel-Pro SX-9684 Kit**

1. **Limited to Specific Applications** While this kit works for the **1985 1988 Cimarron 2.8L V6 with AIC**, it may not be necessary if your vehicle doesn t have **leaking O-rings** or related symptoms. Over-replacing parts without a clear issue can lead to unnecessary labor costs.

2. **Does Not Include All Possible Seals** The kit focuses primarily on **fuel injector O-rings and AIC solenoid O-rings**, but if you re doing a **full fuel system service**, you may also need:

- **Fuel rail O-rings** (if the rail itself is leaking)

- **Fuel pressure regulator O-rings**

- **Throttle body gaskets** (if applicable)

- **PCV valve seals** (if the PCV system is being serviced)

If these are missing, you may need to purchase additional parts separately.

3. **Installation Requires Care** Improper installation (e.g., **over-torquing, cross-threading, or using damaged O-rings**) can lead to **leaks or damage to the injector or solenoid threads**. This is especially true for **fuel injectors**, which have delicate seals that must be seated correctly.

4. **May Not Solve Underlying Issues** If your Cimarron has **fuel injector failure, a bad fuel pump, or vacuum leaks**, replacing just the O-rings won t fix the root problem. Diagnosing the **exact cause of symptoms** (e.g., check engine lights, poor performance) is crucial before purchasing parts.

5. **Potential for Counterfeit or Low-Quality Alternatives** While Fel-Pro is generally reliable, some online sellers may offer **fake or substandard copies** of this part. Always verify the seller s reputation and check for **authentic packaging** to avoid receiving inferior products.

6. **Labor Intensive for DIYers** Replacing fuel injector O-rings requires:

- Removing the **intake manifold** (if not already done)

- Disconnecting **fuel lines and electrical connectors**

- Carefully removing and installing **O-rings without damaging them**

- **Bleeding the fuel system** afterward

If you re not experienced with fuel system work, this job can be **time-consuming and frustrating**.

7. **No Warranty on DIY Installation** Unlike a professional shop, if you install the O-rings incorrectly and cause **fuel leaks or injector damage**, you won t have warranty coverage. Fel-Pro s warranty typically covers **defective parts only**, not installation errors.

---

### **Conclusion & Recommendation**

The **Fel-Pro SX-9684 Fuel Injector O-Ring Kit** is a **solid, cost-effective choice** for replacing O-rings on a **1985 1988 Cadillac Cimarron 2.8L V6 with AIC**, provided:

- You **confirm that O-ring leaks are the actual issue** (not injectors, fuel pump, or other components).

- You re **prepared for a thorough installation** (including proper cleaning, torque specs, and fuel system bleeding).

- You **purchase from a trusted retailer** to avoid counterfeit parts.

#### **When to Buy This Kit:**

You have **visible fuel leaks at injector or AIC solenoid connections**.

Your vehicle exhibits **rough idle, misfires, or poor fuel economy** due to suspected O-ring failure.

You re **already working on the fuel system** (e.g., replacing injectors, servicing the AIC system).

You want a **reputable, mid-range quality** part without breaking the bank.

#### **When to Consider Alternatives or Additional Parts:**

If you need **fuel rail or regulator O-rings**, look for a **complete fuel system gasket kit** (e.g., **Fel-Pro SX-9685 or similar**).

If your injectors are **failing or clogged**, you may need to **replace them entirely** (consider **OEM or high-quality aftermarket injectors**).

If you re **not comfortable with fuel system work**, consider **taking it to a professional mechanic** to avoid costly mistakes.

If you suspect **vacuum leaks or AIC system failures**, address those first before replacing O-rings.

#### **Final Recommendation:** **Buy the Fel-Pro SX-9684 kit if:**

- You ve **diagnosed O-ring leaks as the problem**.

- You re **prepared to install it correctly** (or have access to someone who can).

- You want a **reliable, budget-friendly solution** for sealing fuel injectors and AIC components.

**Avoid buying it if:**

- You re **not sure what s causing your symptoms** (get a **scan tool and proper diagnosis first**).

- You need **additional seals** (fuel rail, regulator, etc.) and don t want to buy extra parts.

- You re **uncomfortable with fuel system work** and don t have the tools/experience.

For the best results, **pair this kit with a fuel system service** (cleaning injectors, checking lines, bleeding the system) to ensure long-term reliability. If in doubt, consult a **mechanic or fuel injection specialist** before purchasing.

Details:

Fel-Pro Fuel Injector O-Ring Kit for 1985 - 1988 Cadillac Cimarron 2.8L V6 Air wc: Status: In Stock.

part #: sx9684 prices

  • $21.29-$38.52

specifications carfuelinjector:

  • for makes: Cadillac
  • for years: 1985-1988
  • brand: Fel-pro
  • mpn: Sx-9684
  • type: Fuel Injector O-ring Kit
  • item weight: 0.0500
  • manufacturer warranty: 1 Year
  • item height: 0.160
  • item length: 6.000
  • item width: 4.000
  • ipn: C434 48-11
  • placement on vehicle: Air Fuel Delivery Service Kits
  • compatible model: Cimarron
  • compatible year: 1988 1987 1986 1985
  • 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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  • quantity: 10
  • options: Ship-to-home
  • availability: In Stock
  • started: March 8, 2026
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  • condition: New
  • Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

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for makes: cadillac, for years: 1985-1988, type: fuel injector o-ring kit, item weight: 0.0500, manufacturer warranty: 1 year, item height: 0.160, item length: 6.000, item width: 4.000, placement on vehicle: air fuel delivery service kits, compatible model: cimarron, compatible year: 1988 1987 1986 1985, 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: 15162338518201892,
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