DPH FUEL INJECTOR SEAL 74HJXYKJ Lower 9.8 1.4

( Brand: Dph Fuel Injector Seal ), ( Manufacturer Part Number: 74HJXYKJ ), ( Part Type: Fuel Injector Seal ), ( Compatible Make/model: Audi 80 ), ( Compatible Years: 1988 1989 1990 1991 1992 88 89 90 91 92 ), ( Position: Lower ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review DPH FUEL INJECTOR SEAL 9.8 1.4mm Lower Audi 80 fits 1988–1992

The **DPH Fuel Injector Seal (Part Number: 9.8 1.4 74HJXYKJ Lower)** is a precision-engineered, high-performance sealing solution meticulously designed to address the critical fuel system needs of **Audi 80 (B3) models produced between 1988 and 1992**, specifically those equipped with the **1.4L inline-four engine (74HJXYKJ)**. Crafted from **high-grade silicone elastomer**, this seal is engineered to withstand the demanding conditions of modern fuel injection systems, including exposure to high-pressure fuel, extreme temperatures, and corrosive chemical residues. Its **low-compression, self-lubricating properties** ensure a reliable, leak-free fit between the fuel injector and the intake manifold, preventing fuel leaks, vacuum loss, and potential engine performance degradation common issues that plague aging fuel systems. The seal s **customized dimensions** guarantee a snug, interference-free installation, eliminating the risk of warping or deformation over time, which is particularly crucial for maintaining optimal fuel delivery and combustion efficiency in these classic yet high-revving engines. Whether addressing a **new installation, a repair after a fuel leak, or a preventive maintenance upgrade**, this seal is a **direct-fit replacement** that restores factory-level reliability, ensuring seamless operation of the fuel injectors while extending the lifespan of the entire fuel system. Built to meet the exacting standards of Audi s B3 platform, this component is an essential upgrade for enthusiasts seeking to preserve the integrity of their vehicle s performance and fuel economy, offering peace of mind with every drive.

### **Pros and Cons of buying a DPH Fuel Injector Seal (Part Number: 9.8 1.4 74HJXYKJ, Lower Audi 80 1988-1992)**

1. **Direct Fitment** The part is specifically designed for the 1.4L Audi 80 (B3) from 1988 to 1992, ensuring compatibility without modification. This reduces the risk of installation errors or improper sizing.

2. **High-Quality Material** DPH is a reputable manufacturer known for producing durable OEM-quality or aftermarket parts. The seal is likely made from resilient materials (such as silicone or rubber with reinforced edges) to prevent leaks and wear over time.

3. **Prevents Fuel Leaks** A failing fuel injector seal can cause fuel leaks, which may lead to fuel odors, wet engine bays, or even electrical shorts. Replacing it proactively can avoid costly damage to wiring or insulation.

4. **Improves Engine Performance** If the original seal was degraded, fuel may not be delivered efficiently to the injectors. A new seal ensures proper fuel flow, which can restore optimal engine performance, fuel economy, and power.

5. **Easy Installation** The part is designed for straightforward replacement, typically requiring only basic tools (screwdriver, pliers, and possibly a sealant for extra security). No major disassembly is usually needed unless other components are also failing.

6. **Cost-Effective Solution** Replacing a single seal is far cheaper than dealing with secondary issues caused by fuel leaks (e.g., damaged wiring harnesses, catalytic converter failure, or engine misfires).

7. **Warranty Coverage** Many reputable suppliers (including DPH) offer warranties on their parts, providing peace of mind in case of premature failure due to defects.

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1. **Potential Counterfeit Risk** While DPH is a legitimate brand, counterfeit parts may sometimes enter the market. Ensure you purchase from a trusted seller (e.g., official dealers, eBay verified sellers, or reputable online marketplaces) to avoid receiving a substandard or fake part.

2. **Mixed Reviews on Longevity** Some users report that while the seal works initially, it may not last as long as OEM parts, especially in high-mileage or aggressive driving conditions. This could require future replacements.

3. **Additional Labor Costs** If you re not mechanically inclined, labor costs for professional installation may add to the total expense. However, the job is generally straightforward for a DIYer.

4. **Compatibility Doubts** While the part number suggests it fits your vehicle, there s always a slight chance of misalignment or incorrect sizing if the vehicle has unique modifications or aftermarket components. Always cross-reference with your specific engine bay layout.

5. **Fuel Injector Health Dependency** If the fuel injectors themselves are clogged or failing, replacing just the seal may not fully resolve performance issues. A diagnostic check (e.g., fuel pressure test, injector cleaning) may be needed for a complete fix.

6. **Environmental Factors** Exposure to heat, moisture, or corrosive substances (e.g., road salt) can degrade the seal prematurely. Ensuring proper installation and using high-quality sealant can mitigate this.

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The **DPH fuel injector seal (9.8 1.4 74HJXYKJ) for the Audi 80 (1988 1992)** is a **practical and cost-effective solution** for addressing fuel injector seal leaks. Its direct fitment, quality materials, and ease of installation make it a strong choice for preventing fuel-related issues. However, potential drawbacks such as counterfeit risks, mixed longevity reviews, and the need for complementary diagnostics should be considered.

If your primary concern is **preventing leaks and restoring fuel system efficiency**, this part is a **reliable upgrade**. For long-term reliability, pair it with a **fuel system inspection** (e.g., checking injectors, fuel lines, and pressure regulators) to ensure no underlying problems exist.

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1. **Purchase from a Trusted Source** Buy directly from DPH s official website, an authorized dealer, or a well-reviewed online retailer (e.g., Amazon, eBay with seller feedback) to avoid counterfeits.

2. **Inspect the Injectors** If you re experiencing **rough idling, misfires, or poor acceleration**, consider cleaning or testing the injectors alongside the seal replacement.

3. **Use High-Quality Sealant** Apply a **silicone-based sealant** (like Permatex or Loctite) to the injector connection for extra security, especially if the original seal area was corroded.

4. **Follow Installation Guidelines** Refer to a **service manual** or **YouTube tutorial** specific to your Audi 80 model to ensure proper removal and installation.

5. **Monitor Post-Installation** Check for leaks after driving for a few days. If issues persist, verify that the part was installed correctly or that other components (e.g., fuel rail gasket) need attention.

**Final Verdict:** **Worth the purchase** for its direct fitment and effectiveness in stopping leaks, but pair it with a thorough diagnostic to address any broader fuel system concerns. If budget allows, consider **OEM or higher-end aftermarket alternatives** (e.g., Fel-Pro) for potentially longer-lasting results.

Details:

Lower DPH Fuel Injector Seal fits Audi 80 1988 - 1992 74HJXYKJ: Position: Brand: condition: New Detailed Applications Years: Vehicle: 1988 - 1992 Audi. 12 Month Warranty.

part #: 74hjxykj price

• $17.55

specifications carfuelinjector:

• for makes: Audi
• for years: 1988-1992
• brand: Dph Fuel Injector Seal
• mpn: 74hjxykj
• part type: Fuel Injector Seal
• compatible make/model: Audi 80
• compatible years: 1988 1989 1990 1991 1992 88 89 90 91 92
• position: Lower
• manufacturer warranty: 12 Month Warranty
• attention: Read Full Description To Confirm Fitment
• cs-sku: 400

offer carFuelInjector:

• started: April 7, 2026
• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home

returns carFuelInjector:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

shipping carFuelInjector:

• transit: 3-7 Days
• cost: $0.00
• service: Economy
• type: Fixed
• class: Economy

seller carFuelInjector:

• city: Hull, Massachusetts
• # reviews: 23876
• rating: 99.2%

general carFuelInjector:

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

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• wallet: Paypal

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