SUBARU 17123285942 Set Front Right Passenger Fuel Rail Hose Injector

( Manufacturer Part Number: 17123285942 ), ( Type: Fuel Injector ), ( Country Of Origin: Japan ), ( Fuel Type: Gasoline )

Review SUBARU Set Front Right Passenger Side Fuel Rail Injector Hose Oem fits WRX 2015–2021

The **Subaru 17123285942 2015 2021 WRX Set of Front Right Passenger Fuel Rail Injector Hoses** is a precision-engineered replacement component designed specifically for Subaru s high-performance turbocharged engines, ensuring optimal fuel delivery and system reliability. Crafted from high-grade, fuel-resistant rubber reinforced with durable synthetic fibers, these hoses are engineered to withstand the extreme pressures and temperatures generated by the WRX s aggressive turbocharged operation. Each hose in this set is meticulously molded to match the exact dimensions and routing of the original equipment manufacturer (OEM) design, guaranteeing a seamless fit without unnecessary slack or tension that could lead to leaks or premature wear. The reinforced construction prevents kinking, cracking, or degradation over time, even under prolonged exposure to the corrosive effects of ethanol-blended fuels and the high-pressure fuel system demands of the WRX s turbocharged 2.5L EJ257 engine. This set includes both the **passenger-side fuel rail injector hose** and its corresponding **fuel rail connector**, ensuring compatibility with the WRX s direct-injection fuel system while maintaining the integrity of the fuel pressure regulator circuit. Ideal for performance enthusiasts, mechanics, or DIYers tackling fuel system maintenance, upgrades, or repairs, these hoses are a critical upgrade for those seeking to eliminate potential fuel leaks, improve fuel delivery consistency, and extend the lifespan of the WRX s fuel injectors and rail assembly. Proper installation, using the correct torque specifications and ensuring a secure connection to the fuel rail and injector, is essential to maximize performance and prevent fuel system malfunctions.

**Pros and Cons of buying a Subaru 17123285942 (2015-2021 WRX STI Fuel Rail Injector Hose)**

1. **Direct OEM Replacement** This part is an original Subaru component, ensuring a perfect fit and compatibility with your vehicle s fuel system. It eliminates concerns about sizing or installation issues that generic or aftermarket parts might introduce.

2. **Reliability and Durability** Subaru s OEM parts are engineered to meet strict quality standards, reducing the risk of premature failure or leaks. This is particularly important for fuel rail components, where reliability directly impacts engine performance and safety.

3. **Warranty Coverage** Purchasing from an authorized Subaru dealer or a reputable seller often includes a warranty, providing peace of mind in case of defects. Some sellers may offer extended warranties, further protecting your investment.

4. **Prevents Long-Term Damage** A failing fuel rail injector hose can lead to fuel leaks, reduced fuel pressure, or even engine misfires. Replacing it proactively avoids costly repairs to injectors, the fuel pump, or the engine itself.

5. **Maintains Resale Value** Keeping your WRX STI well-maintained with genuine parts helps preserve its value, especially if you plan to sell or trade it in the future. Buyers often prefer vehicles with a documented history of OEM maintenance.

6. **Professional Installation Support** If you purchase from a dealer or a trusted mechanic, you may receive guidance on proper installation techniques, ensuring the hose is fitted correctly to avoid leaks or improper sealing.

7. **Compatibility with Tuning** For those who modify their WRX STI (e.g., with a tune or forced induction), using OEM-quality parts ensures the fuel system can handle increased demands without compromising performance or longevity.

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1. **Higher Cost** OEM parts are significantly more expensive than aftermarket alternatives. The price reflects Subaru s brand reputation, quality control, and the cost of sourcing genuine components. This can be a barrier for budget-conscious buyers.

2. **Limited Availability** OEM parts may not always be in stock at local dealers, requiring orders from warehouses or online retailers, which can introduce delays. Some sellers may also mark up prices due to demand.

3. **Potential for Counterfeit Parts** When purchasing online, there s a risk of receiving counterfeit or refurbished parts that aren t genuine. Always buy from verified sellers with return policies and authenticity guarantees.

4. **Installation Complexity** While the hose itself is straightforward, improper installation (e.g., overtightening, incorrect routing, or seal damage) can lead to leaks or performance issues. DIYers may need to invest time in research or seek professional help.

5. **Opportunity Cost** The upfront cost may divert funds from other vehicle upgrades or maintenance tasks. Weigh whether prioritizing this part is more critical than other potential improvements (e.g., suspension, exhaust, or interior upgrades).

6. **Overkill for Some Owners** If your WRX STI is low-mileage and has no history of fuel system issues, replacing the hose purely as a precaution may be unnecessary. In such cases, monitoring for symptoms (e.g., rough idling, check engine lights) before replacement could be more cost-effective.

7. **Environmental and Ethical Concerns** OEM parts contribute to e-waste and resource consumption. Some buyers may prefer aftermarket or recycled parts as a more sustainable alternative, though this comes with trade-offs in reliability.

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The **Subaru 17123285942 fuel rail injector hose** is a high-quality, reliable component that is ideal for owners who prioritize longevity, performance, and peace of mind. Its OEM status ensures compatibility, reduces long-term risks, and aligns with Subaru s engineering standards. However, the **higher cost and potential for counterfeit parts** make it less accessible for those on a tight budget or less inclined to invest in proactive maintenance.

For **high-mileage WRX STI owners, tuners, or those experiencing fuel system symptoms**, this part is a **strong recommendation** to prevent catastrophic failures. For **low-mileage or symptom-free vehicles**, the decision should be based on budget and risk tolerance considering whether the cost justifies the preventive measure.

If you proceed with purchasing, **buy from an authorized Subaru dealer or a reputable online retailer with return policies** to avoid counterfeit parts. If unsure about installation, **consult a professional mechanic** to ensure proper fitting and sealing.

- **Buy it if:** You re experiencing fuel system issues, your WRX STI has high mileage, or you re tuning the engine and want to future-proof the fuel rail.

- **Skip it if:** Your vehicle is low-mileage with no symptoms, and you d rather allocate funds elsewhere. In that case, monitor for warning signs before replacement.

- **Alternative:** If cost is a concern, research **high-quality aftermarket brands** (e.g., ACDelco, Bosch, or specialized fuel system suppliers) that offer comparable parts with warranties. However, weigh the trade-off between cost savings and potential reliability risks.

Details:

WILL FIT: 2014 -2021. 2019 SUBARU WRX FUEL RAIL INJECTOR OEM. FROM: 2019 SUBARU WRX.

part #: 17123285942 prices

• $72.99-$299.00

specifications carfuelinjector:

• for models: Wrx
• for makes: Subaru
• for years: 2015-2021
• mpn: 17123285942
• type: Fuel Injector
• country of origin: Japan
• fuel type: Gasoline

seller carfuelinjector:

• city: Inman, South Carolina
• # reviews: 1085
• rating: 100.0%

payments carfuelinjector:

• credit card: Mastercard
• wallet: Google-pay
• other

returns carfuelinjector:

• policy: No Returns

general carfuelinjector:

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

shipping carfuelinjector:

• class: Economy
• transit: 4-10 Days
• cost: $0.00
• service: FedEx Ground Economy
• type: Fixed
• carrier: FedEx

offer carfuelinjector:

• sold: 0
• availability: In Stock
• started: March 3, 2026
• quantity: 1
• options: Ship-to-home

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