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Description
5.0L Ford Engine Main Harness5. 0L Ford Engine Main Harness Test Harness for Firmware Updating, Dash Configuration, and ECU Testing. Overview Designed for benchtop testing and setup of HP, Dominator, Terminator X, Terminator X Max, and Sniper ECU's, as well as 7" dashes. Great for ECU diagnostics, firmware updating, or pre configuring dash layouts without being in the vehicle. Harness has pre terminated connectors for the following sensor inputs: CAN, Crank, Cam, TPS, Input #1,
5.0L Ford Engine Main HarnessTest Harness for Firmware Updating, Dash Configuration, and ECU Testing.
Overview
Designed for benchtop testing and setup of HP, Dominator, Terminator X, Terminator X Max, and Sniper ECU's, as well as 7" dashes. Great for ECU diagnostics, firmware updating, or pre-configuring dash layouts without being in the vehicle. Harness has pre-terminated connectors for the following sensor inputs: CAN, Crank, Cam, TPS, Input #1, P1A, Main Power, and Sniper EFI connectors for a Sniper main harness. Also includes a power switch for quick setup in your workspace. Power and Ground flying leads need to be connected to your battery or power supply. (Not included)
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.
Details:
- Harness Application: Ford
- Harness Type: Main
Links
Instruction Sheet
EFI Selection Chart
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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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]
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4.8 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Comfortable shoes
Size: 10.5, Color: Black
Fit well Look great Get compliments all the time
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Good value for the money.
Size: 9.5 Wide, Color: Beige
Comfortable right out of the box. Great style and well made. The more you wear the softer they get but maintain their overall appearance.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Very good quality for a reasonable price.
Size: 10, Color: Grey
Very good quality, very soft, very comfortable, look amazing, I’m very happy.
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Reviewed in the United States on May 23, 2026
★★★★★ 4
Comfortable fit for slip-in fabric shoes
Size: 14, Color: Black/Black
My first experience with Marc Joseph. I typically purchase dress and casual work shoes from Florsheim and occasionally Rockport. I'm giving these four stars because the initial fit and feel appear solid. Depending on the shoe brand I wear a size 14 or 15. My feet are slightly wide but I don't alway need wide fit. These size 14 fit well with wide enough toe box. I've tried slip in shoes before and they just don't feel right. These somehow work and there is no heel slip. My only reservation is the high lip on the heel for slip-in and hope they dont catch pant hems. I gave 4 stars because I'll have to determine durability. Granted they are a light fabric shoe with a soft rubber tread. I'd like them to last for at least 6 months..and use them for business casual work wear during warm weather.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Stylish and comfortable.
Size: 8 Wide, Color: Black/Black
Shoes look great and fits well. Definitely recommend pocking another pair.
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Reviewed in the United States on May 10, 2026