SKU: 42874630900

Gen III Hemi Main Harness Early w/ TPS and Idle Air Control Connections 558-115

Sale price$404.98 Regular price$449.98
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Gen III Hemi Main Harness Early w/ TPS and Idle Air Control Connections 558-115Overview: Gen III HEMI Harness with TPS and Idle Air Control Connections. This wiring harness interfaces a Holley EFI ECU to a Gen III HEMI engine with an aftermarket cable actuated throttle body. It is meant to be used in conjunction with an injector harness, a coil harness, and two ignition modules. Most stock sensors are used with this harness. There are two optional connectors for interfacing with CAN based Holley modules. Features: Gen III Hemi

Overview:

Gen III HEMI Harness with TPS and Idle Air Control Connections. This wiring harness interfaces a Holley EFI ECU to a Gen III HEMI engine with an aftermarket cable actuated throttle body. It is meant to be used in conjunction with an injector harness, a coil harness, and two ignition modules. Most stock sensors are used with this harness. There are two optional connectors for interfacing with CAN-based Holley modules.

Features:

  • Gen III Hemi Main Harness with IAC motor wiring/connector and TPS wiring/connector for a manual throttle body application
  • Take control of your Gen III HEMI with Holley EFI by controlling fuel and spark. Great for power upgrades and engine swaps.
  • Capable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection
  • Harnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available
  • Each Harness is designed in fit and function specifically for the Gen III HEMI engine platform
  • All wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter
  • Factory style terminations provide a strong, secure connection
  • Connectors are OEM grade for a correct, positive fit
  • Each harness is routed through a split-loom braid for protection and great looks

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Emission Code 4
Harness Application HEMI
Harness Type Main
Ignition Type GEN III HEMI
Product Type Hemi Main Engine Harness
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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SKU: 42874630900

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Pamela J Arrowood
Cuba, US
★★★★★ 5
Works great
Material Type: Three Tiers Cart
Easy assembly. Perfect for moving around bar area. Rolls nicely. A lot of room..
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Reviewed in the United States on March 9, 2026
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Cynthia Mills
Los Angeles, US
★★★★★ 5
Love this cart
Material Type: Three Tiers Cart
Love this cart. It’s sturdy and looks great in my kitchen I put my microwave on it and my toaster oven. It’s easy to pull around. I highly recommend it.
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Reviewed in the United States on April 9, 2026
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C. J.
Draper, US
★★★★★ 1
Not pleased- No holes predrilled in wood!
Love the look of it and should have been a good review BUT there were absolutely no holes drilled and a total of 64 screws to put in. So I have 2 slabs of solid wood and the pipes. I could have purchased and made it myself if it doesn’t even come with pre drilled holes in the wood. Have to get someone to drill all the holes for me and hope the can line them up properly before I can put together. Hope it works as returning this large and heavy of an item would be difficult. Very disappointed in what should have been a great item.
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Reviewed in the United States on December 19, 2025
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J. Minor
Houston, US
★★★★★ 5
Good value
Material Type: Three Tiers Cart, Material Type: Three Tiers Cart
Assembly was a little awkward but doable.
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Reviewed in the United States on September 2, 2025
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Mary Owens
Whiting, US
★★★★★ 5
Nice for storing canned/ bottled drinks
Material Type: Three Tiers Cart
Great. Wish I could've gotten it in a darker brown color, but it serves it's purpose.
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Reviewed in the United States on February 10, 2026

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