HOLLEY EFI 558-513 Harness Kit Foxbody Tfi 090127074435 5.0L V8

( Brand: Holley Efi ), ( Part Type: Harness ), ( Item Height: 4.200 ), ( Item Length: 14.500 ), ( Item Weight: 6.2000 ), ( Item Width: 8.900 ), ( UPC: 090127074435 ), ( Manufacturer Part Number: 558-513 )

Review HOLLEY EFI Harness Kit Ford Foxbody 5.0l V8 Tfi

Introducing the Holley EFI 558-513 harness kit, specifically designed for Ford Foxbody 5.0L V8 TFI applications. This high-performance harness kit is an essential addition to any DIY or professional engine builder's toolbox.

The Holley EFI 558-513 harness kit includes a comprehensive set of wires and connectors, ensuring a straightforward and accurate installation of a Holley EFI system on your Ford Foxbody 5.0L V8 TFI engine. Each wire is color-coded and clearly labeled for easy identification and connection.

The kit features a wide range of connectors, including those for the crank trigger, cam trigger, distributor, coil packs, oil pressure sensor, water temperature sensor, and various fuel system components. These connectors are designed to fit securely and efficiently, allowing for a tidy and error-free installation.

The Holley EFI 558-513 harness kit is engineered to the highest standards of quality and durability. The wires are made from heavy-duty, heat-resistant material to ensure they can withstand the extreme temperatures and conditions found in a high-performance engine compartment. The connectors are sealed against moisture and other environmental factors, ensuring a long and reliable service life.

Installation of the Holley EFI 558-513 harness kit is made easy through the use of detailed instructions and clear labeling. Each connector is labeled with both a number and a description, allowing for easy reference to the corresponding Holley EFI system manual. The instructions include step-by-step guidance on the installation process, as well as troubleshooting tips and recommendations for best practices.

In summary, the Holley EFI 558-513 harness kit is an essential accessory for any Ford Foxbody 5.0L V8 TFI engine builder looking to install a Holley EFI system. With its comprehensive set of wires and connectors, clear labeling, and durable construction, this harness kit ensures a straightforward and accurate installation, while providing the reliability and performance expected from Holley EFI.

The Holley EFI 558-513 harness kit is designed for Ford Foxbody 5.0L V8 TFI engines to enable the use of Holley's EFI system. Here are some pros and cons of purchasing this harness kit:

1. Compatibility: This harness kit is specifically designed for Ford Foxbody 5.0L V8 TFI engines, ensuring a perfect fit and function.

2. Convenience: Holley EFI harness kits are pre-wired and pre-terminated, making the installation process easier and less time-consuming compared to a wiring project from scratch.

3. Flexibility: With the Holley EFI system, you can tune your engine using various software options, including Holley's HP EFI and EFI Live.

4. Improved Performance: Using an EFI system can offer better fuel delivery, improved idle stability, and more efficient combustion for increased engine performance.

5. OEM-like Functionality: The Holley EFI harness kit allows you to maintain OEM-like functionality for some vehicle features, such as turn signals and engine diagnostics.

1. Cost: The Holley EFI harness kit and related components can be more expensive than traditional carburetor setups or basic OEM EFI systems.

2. Complexity: While the pre-wired harness kit makes installation easier, the Holley EFI system itself can be complex and requires a learning curve for tuning and troubleshooting.

3. Potential for Compatibility Issues: Although the harness kit is designed for Ford Foxbody 5.0L V8 TFI engines, there is still a possibility of encountering compatibility issues with other vehicle components or aftermarket modifications.

In conclusion, the Holley EFI 558-513 harness kit can offer improved performance, flexibility, and convenience for Ford Foxbody 5.0L V8 TFI engine owners. However, it comes with a higher cost and potential complexity compared to traditional carburetor setups or basic OEM EFI systems. Ultimately, the decision to purchase this harness kit depends on your budget, desired level of engine performance, and installation experience.

If you are confident in your ability to tune an EFI system and are willing to invest in the higher cost and complexity, the Holley EFI 558-513 harness kit could be a worthwhile investment for enhancing your engine's performance. If you have limited resources or prefer a simpler solution, a traditional carburetor setup or OEM EFI system may be more suitable for your needs.

part # 558513 prices

• $972.95-$989.48

specifications injectiopug:

• for makes: Ford
• brand: Holley Efi
• part type: Harness
• item height: 4.200
• item length: 14.500
• item weight: 6.2000
• item width: 8.900
• upc: 090127074435
• manufacturer part number: 558-513

general injectiopug:

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

shipping injectiopug:

• cost: $0.00
• transit: 2-5 Days
• carrier: UPS
• class: Standard
• service: UPS Ground
• type: Fixed

returns injectiopug:

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

seller injectiopug:

• # reviews: 89565
• rating: 99.8%

offer injectiopug:

• options: Ship-to-home
• availability: In Stock
• started: April 16, 2026
• quantity: 3
• sold: 0

payments injectiopug:

• other
• credit card: Diners-club
• wallet: Google-pay

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