MAHLE GS33982 Fuel Injector Ring Kit 16698-AA100-73204

( Brand: Mahle ), ( Manufacturer Part Number: GS33982 ), ( Vehicle Position: Lower ), ( Product Type: Factory Replacement ), ( Type: Fuel Injector O-ring Kit ), ( Ipn: 16698 Aa100 73204 ), ( All Interchanges: 16698 Aa100, Es 73204 )

Review MAHLE Fuel Injector O ring Kit More fits OUTBACK LEGACY WRX STI

The **Mahle GS33982 Fuel Injector O-Ring Kit** is a meticulously engineered, high-performance replacement solution specifically designed to restore optimal sealing and functionality to the fuel injectors on Subaru WRX, STI, and Outback models equipped with the EJ25 or EJ22 engines. This premium kit is crafted from **high-quality, durable nitrile rubber**, ensuring exceptional resistance to fuel, oil, and temperature fluctuations while maintaining long-term reliability under the demanding conditions of high-performance driving. Each component in the kit is precision-machined to exacting standards, guaranteeing a perfect fit with the original OEM injectors, eliminating leaks, and preventing fuel vapor loss that can compromise engine efficiency and power delivery. The kit includes a complete set of **replacement O-rings, gaskets, and seals** typically featuring the critical injector O-rings, fuel rail seals, and any associated hardware all sourced from Mahle s trusted manufacturing processes, which emphasize durability, chemical resistance, and dimensional consistency. Whether you're performing a routine maintenance overhaul, addressing a persistent fuel leak, or upgrading your engine s performance, this kit provides a seamless, hassle-free installation experience, allowing for a clean, leak-free connection between the fuel injectors and the fuel rail. Ideal for both professional mechanics and dedicated DIY enthusiasts, the Mahle GS33982 kit ensures that your Subaru s fuel system operates at peak performance, supporting consistent fuel delivery and protecting against potential engine damage from fuel system failures.

The **Mahle GS33982 Fuel Injector O-Ring Kit** is a popular choice for replacing the O-rings on the fuel injectors in a **Wrx STI, Outback, or other Subaru models** that use these injectors. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Mahle GS33982 Fuel Injector O-Ring Kit**

1. **High-Quality Materials** Mahle is a well-known manufacturer of automotive parts, and their O-rings are made from durable, high-performance materials designed to withstand fuel and heat without degrading quickly. This reduces the risk of leaks and ensures a tighter seal.

2. **Compatibility** This specific kit is designed for **Subaru EJ25 (Wrx STI, Outback, Legacy, Forester) fuel injectors**, making it a direct replacement for the stock O-rings. It avoids the hassle of searching for aftermarket alternatives that may not fit perfectly.

3. **Easy Installation** The O-rings come pre-lubricated in some cases (or easily lubricatable with fuel or silicone spray), which simplifies installation. They are also designed to fit snugly without excessive stretching, reducing the risk of damage during installation.

4. **Prevents Fuel Leaks** Over time, stock O-rings can dry out, crack, or become brittle, leading to fuel leaks, which can cause misfires, poor performance, or even electrical shorts. Replacing them with fresh O-rings eliminates this risk.

5. **Cost-Effective for a DIY Project** While not the cheapest option, this kit is reasonably priced for a high-quality replacement. For a DIYer, purchasing the O-rings separately (rather than as part of a full injector rebuild kit) can save money if you re only replacing the O-rings and not the injectors themselves.

6. **Widely Available** Mahle parts are stocked by most auto parts retailers (RockAuto, Amazon, local shops), making them easy to source without long wait times.

7. **Durability** Mahle O-rings are known for lasting longer than some generic or lower-quality alternatives, reducing the need for frequent replacements.

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### **Cons of the Mahle GS33982 Fuel Injector O-Ring Kit**

1. **Not a Full Injector Rebuild** This kit only replaces the O-rings, not the injectors themselves. If your injectors are old, clogged, or failing, you ll need to address those issues separately. Simply replacing O-rings may not fully resolve performance or fuel delivery problems.

2. **Requires Disassembly** Replacing O-rings means removing the fuel injectors from the intake manifold, which is a moderately involved process. This requires basic mechanical skills, the right tools (torque wrench, injector removal tool, etc.), and patience. For those uncomfortable with engine work, this may not be the best DIY project.

3. **Potential for Improper Installation** If the O-rings are not installed correctly (e.g., not lubricated properly, stretched too much, or installed crooked), they can fail prematurely or cause leaks. This risk is mitigated with careful attention to detail but can be frustrating for beginners.

- Fuel injector removal tools (if you don t already own them).

- Cleaning solvent (for the injectors if you re doing a full rebuild).

- Lubricant (silicone spray or fuel for O-ring installation).

- Torque wrench and socket set (if you don t have them).

These extras can add to the overall cost.

5. **Time-Consuming** Removing and reinstalling injectors can take several hours, especially if you re doing it for the first time. This may not be ideal for those with limited time or patience for meticulous work.

6. **No Warranty on Performance** While the O-rings themselves are high-quality, they won t fix issues like injector clogging, carbon buildup, or electrical failures. If your injectors are already degraded, replacing just the O-rings may provide a temporary fix but not a long-term solution.

7. **Potential for Overkill** If your injectors are relatively new and the leaks are minor, replacing just the O-rings may not be necessary. In such cases, a simple inspection or cleaning might suffice.

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### **Conclusion**

The **Mahle GS33982 Fuel Injector O-Ring Kit** is a solid choice for anyone looking to replace worn or failing O-rings on their **Wrx STI or Outback fuel injectors**. It offers **high-quality, durable seals** that prevent leaks and improve reliability. However, it is **not a standalone solution** for injector-related issues it should be part of a broader maintenance or rebuild effort if your injectors are old or degraded.

- **DIYers** who are comfortable with engine work and have the tools to remove and reinstall injectors.

- **Preventative maintenance** to avoid future leaks and injector failures.

- **Those who want a reliable, long-lasting O-ring** without compromising on quality.

- **Beginners** who lack experience with fuel system work.

- **Those who need a full injector rebuild** (in which case a complete injector service kit may be better).

- **People looking for a quick fix** without investing time in proper installation.

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### **Recommendation**

If you re experiencing **fuel leaks, misfires, or poor performance** from your Wrx STI or Outback injectors, replacing the O-rings with the **Mahle GS33982 kit** is a **wise investment** provided you re prepared to handle the installation properly. Pair this with:

- **Injector cleaning** (if needed) using a product like **Gumout or Seafoam**.

- **A thorough inspection** of the injectors for clogging or electrical issues.

- **Proper lubrication** of the O-rings during installation to ensure a perfect seal.

- **Consulting a professional mechanic** for a full injector service.

- **Investing in a complete injector rebuild kit** (such as those from **Mahle or Stanadyne**) if you re planning to replace the injectors entirely.

For most **Wrx STI and Outback owners** doing their own maintenance, the **Mahle GS33982 O-ring kit is a strong, cost-effective choice** just be prepared for the work involved.

Details:

This does not mean that fog lamps are included. 2003 -2006SubaruBaja2.5LH4For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from set. Mahle Fuel Injector O-Ring Kit for WRX STI, WRX, Legacy, Outback More GS33982, Fitment Chart:: Years: Make: model: Liters: Cylinders: Notes: 2013 -2014SubaruWRX2.5LH4For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from set. For example, if it states with fog lamps, this means your vehicle must be equipped lamps.

SHIPPING INFORMATION: This ships via standard shipping. 2013 -2015SubaruWRX.5LH4For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from set. 2005 -2006Saab9-2X2.5LH4For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from set.

part #: gs33982 prices

• $9.12-$22.34

specifications carfuelinjector:

• for models: Wrx, Sti, Outback, Legacy
• brand: Mahle
• mpn: Gs33982
• vehicle position: Lower
• product type: Factory Replacement
• type: Fuel Injector O-ring Kit
• ipn: 16698 Aa100 73204
• all interchanges: 16698 Aa100, Es 73204

shipping carfuelinjector:

• cost: $0.00
• class: Standard
• service: Standard
• transit: 4-9 Days
• type: Fixed

returns carfuelinjector:

• paid by: Seller
• policy: Returns Accepted
• time: 60 Days

seller carfuelinjector:

• rating: 99.5%
• # reviews: 57132
• city: USA

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general carfuelinjector:

• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
• condition: New

offer carfuelinjector:

• availability: In Stock
• sold: 0
• started: February 21, 2026
• options: Ship-to-home
• quantity: 1

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