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Price Match Guarantee
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Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
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Holley®
558-126 EFI Series Engine Wiring Harness - Universal

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$390.95
$435.00Save: $44.05(10%)
OR
Manufacturer #558-126
Universal Fit Add Vehicle
Qty:
1

Highlights

Part:
Engine Wiring Harness
Brand:
Holley
Notes:
Unterminated Flying Lead
Warranty:
90-day Holley limited warranty
Quantity Sold:
Sold individually
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Length:
15 ft.
Product Fit:
Universal
Series:
EFI Series

Product Information

HOLLEY EFI ENGINE WIRING HARNESS

Expertly crafted and tested to top-grade, OE-specific standards, Holley EFI Engine Wiring Harness provides high quality performance without the high level price. Its OE-standard design provides the right fit and the right solution to your vehicle needs.

  • Meticulously crafted to OE-specific standards
  • Made with top-grade materials in state-of-the-art facilities
  • Strict OE requirements in fitment and functionality ensure part is reliable in performance
  • Offers unmatched quality at an unmatched price

Holley offers top-quality replacement parts for the automotive aftermarket.

Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
Will this part fit a 2002 chrysler town and country v6 3.3l?Matt H.Oct 17, 2024
Best Answer:Hi Matt, thank you for reaching out! This is a universal part meaning it does not fit any specific vehicle. It's for customizing the vehicle harness instead of a direct replacement. Have a great day!
Andrew B.STAFFOct 17, 2024
0
Looking for the harness that includes the relay box?Kenneth H.Nov 01, 2021
Best Answer:Hi Kenneth, I'm pleased to assist you. Can you send us another email with the year, make, model, submodel, and engine size of the vehicle? So we can check the availability. We look forward to hearing from you. Have a nice day.
Grace G.STAFFNov 02, 2021
0
I am try to find a motor harness for a 2004 f250 with a 6.0 diesel in it do you know if you have a harness that will fit?John T.Oct 06, 2021
Best Answer:Hi John, I'm glad to help you out. We don't have a direct fit motor harness for the 2004 Ford F-250 with a 6.0 liter engine. We suggest that you get the motor harness from the local auto parts store. For more maintenance parts, we have a sale on brake parts. To get one for your vehicle, click this link: <a href="https://www.carparts.com/search?q=brake" target="_blank">https://www.carparts.com/search?q=brake</a> I hope this helps. Happy shopping.
Aldrin P.STAFFOct 06, 2021
0
Does have all connections for 2000 xterra 3.3L ?Lee K.Sep 22, 2021
Best Answer:Hi Lee, I'm happy to assist you. No. This universal item doesn't have all the connections for your 2000 Nissan Xterra. This part is for racing vehicles. We suggest that you get the engine wiring harness of your car from the local auto parts store. For more maintenance parts, we have a sale on coolant/antifreeze. To get one for your vehicle, click this link: <a href="https://www.carparts.com/search?q=coolant" target="_blank">https://www.carparts.com/search?q=coolant</a> I hope this helps. Enjoy shopping at <a href="http://Carparts.com" target="_blank">Carparts.com!</a>
Aldrin P.STAFFSep 22, 2021
0
Will this work on a 95 Buick park avenue Base?GizzmoSep 16, 2021
Best Answer:Hi Hughie, I'm glad to assist you. This is a universal type of part and may not replace everything on the engine of your 95 Buick Park Avenue Base. Modifications are needed for installation of this part. You may also call Holley for more additional details you need. Their number is 1866-464-6553. Grab our discounted sale price promo offer and click the link below to order today or later on. I hope this helps. Happy shopping. <a href="https://www.carparts.com/engine-wiring-harness/holley/h19558126?can=CPJE1043" target="_blank">https://www.carparts.com/engine-wiring-harness/holley/h19558126?can=CPJE1043</a>
Jeonino E.STAFFSep 16, 2021