SKU: 48348176668

5.0L Ford Foxbody EFI Main Harness 558-128

Sale price$263.23 Regular price$292.48
Save 10%

Pay in installments of $73.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

5.0L Ford Foxbody EFI Main Harness 558-128This harness is for fuel injected small block ford engines, such as 5. 0L, or 5. 8L Windsor powerplants. Plug and play ignition capability with Dual Sync and HyperSpark Distributors, ignition adapter 558 305 is required for applications with a TFI distributor. The 5. 0L Ford main harness is pre terminated with Ford PWM IAC connector, for the OEM PWM idle air control motor commonly found on late 80's and early 90's engines. Compatible with Holley EFI

This harness is for fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor powerplants. Plug and play ignition capability with Dual Sync and HyperSpark Distributors, ignition adapter 558-305 is required for applications with a TFI distributor. The 5.0L Ford main harness is pre-terminated with Ford PWM IAC connector, for the OEM PWM - idle air control motor commonly found on late 80's and early 90's engines. Compatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU's.

Features:

  • Designed for use with fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor powerplants.
  • Plug and play ignition capability with Dual Sync and HyperSpark Distributors, for ignition adapter 558-305 is required for applications with a TFI distributor
  • Compatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU’s
  • Comes pre-terminated with Ford PWM IAC connector, for OEM PWM – idle air control motors
  • For use with OEM Ford fuel injectors, use injector harness 558-209.
  • For TFI distributor applications, use ignition adapter 558-305

Specs:

Brand Holley EFI
Emission Code 4
Grade Type Performance
Harness Application Ford
Harness Type Main
Product Type 5.0L Ford Main Harness
Warning California Proposition 65
Part Number 558-128

Application:

  • NOT INTENDED AS AN OEM REPLACEMENT!
  • Fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor
  • Plug and play ignition capability with Dual Sync and HyperSpark Distributors
  • Compatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU's
  • For use with OEM Ford fuel injectors, use injector harness 558-209
  • Ignition adapter 558-305 is required for applications with a TFI distributor
  • The main harness supports all the primary engine sensors, fuel and ignition for eight cylinder engines, the #1 wideband oxygen sensor, and the first four programmable input and output channels. There are two connectors for this harness designated as “J1A” (pin designations below that start with an A) and “J1B” (pin designations below that start with a B).
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48348176668

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
Lisa B.
Battle Creek, US
★★★★★ 5
Good strong forks
Number of Items: 500
I was looking for some good, strong forks for our office breakroom. Strong enough for Texas BBQ or anything else we might throw at them. These forks can handle the job! The spoons and knives are also very good, and I also order our10 and 16 oz paper coffee cups and lids from Comfy Package. Good products at a good price - hard to find!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2023
C
Verified Purchase
Chicago Gal
Battle Creek, US
★★★★★ 5
Worth it Forks
Number of Items: 500
These are great and they arrived on time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
M
Verified Purchase
12mermaids
Lexington, US
★★★★★ 4
Very Sturdy Forks
Number of Items: 500
These forks are very sturdy and similar in quality to Dixie heavyweight forks. They are hard plastic, not maleable, so they hold up well to hot food and can be used to "cut" foods such as lasagna. Good product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2019
C
Verified Purchase
cindy mitzmacher
Charlottesville, US
★★★★★ 5
Good product not “comfy” package
Number of Items: 500, Number of Items: 500
Sturdy forks but be careful when opening. Amazon package and product box were damaged. A mess.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2024
T
Verified Purchase
The technician and crafter
Grantham, US
★★★★★ 5
Two packs no breaks
Number of Items: 500
I've ordered two packs of these now for lunch. Over the course of 2 years. Works very well. Never had a fork break. Biggest complaint with other brands is I've had forks break.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2024

recommand products