Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 18 - Jun 23
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Description
V2 K Series K20 K24 Fuel Tech 450 Adapter Expansion Harness For ECU Display FT450K Series K20 K24 Fuel Tech 450 Adapter Expansion Harness For ECU Display FT450 This product is for anyone with a K Series build to upgrade to the Fuel Tech FT450 ECU Display Screen. 100% Plug & Play Adapter Ideal unit for those who have already have an engine harness and don't want to have to purchase an entirely new harness. Fits 02 04 Style K Series Harnesses Including Our Aftermarket Harness Includes: 02 04 K Series to Fuel Tech Adapter Harness
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.8 ★★★★★
Based on 612 reviews
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Product Reviews
★★★★★ 5
Nice
Size: 16AWG Wiring Harness-2 Leads
Worked great, easy to install
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Reviewed in the United States on January 8, 2026
★★★★★ 4
Wire length between the two connectors is short for a full-size pickup
Size: 16AWG Wiring Harness-2 Leads
I used the harness to wire ditch lights on opposite sides of a full-size pickup (F150). The wire between the 2 2-pin connectors was about 18 inches too short. Fortunately, splicing the wires from the (Nilight) ditch lights and the included pigtails gave barely enough length to reach the connectors. The connectors are buried inside the trim channel for the cowl; I'd have preferred they were exposed on each side to allow for easy swapping of the lights, but I can live with it. There is more than enough wire from the first connector to the relay for my all-under-hood installation, but I didn't think to measure if it would reach into the truck bed. The harness is of good quality and is a very good value. It would be a 5-star if it weren't for that little length issue.
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Reviewed in the United States on June 1, 2025
★★★★★ 5
great value
Size: 16AWG Wiring Harness-2 Leads
very affordable light install kit. worth the price just in the wiring connectors. I used this with my Nilight front bumper kit. i bypassed the button and wired high beam (+) to the yellow small wire. I did this so when the highbeams come on the light bar comes on. because with the stock arragement of this harness, the button continously draws power for the indicator LED
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Reviewed in the United States on April 30, 2026
★★★★★ 5
The Easiest!
Size: 16AWG Wiring Harness-2 Leads
This is one of the best and easiest wiring system to install that I have every used. And the price is great!
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Reviewed in the United States on June 11, 2025
★★★★★ 5
Well done. Useful.
Size: 16AWG Wiring Harness-2 Leads
Always well done.
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Reviewed in the United States on August 24, 2025
