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Description
Gen III HEMI Main Harness , Late, w/TPS and Idle Air Control Connections 558-116Overview: 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
- 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 | Not Included |
| Injector Connector | Not Included |
| Product Type | Hemi Main Engine Harness |
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 1400 reviews
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Product Reviews
★★★★★ 5
Longest lasting dog toys we’ve purchased.
Style: Fox, Raccoon, Squirrel
In 2020, we purchased these for our 6 month old puppy who was repeatedly destroying all of her toys. Christmas 2025, I gifted our dog a stuffed toy purchased from a local dog store. It was destroyed within an hour. Later that day, I found one of these little squirrels that we purchased FIVE years ago - still in action, a bit worse for the wear, but still very much loved by our dog. I decided to purchase another pack of these as they are clearly winners.
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Reviewed in the United States on January 19, 2026
★★★★★ 5
Nice toy
Style: Variety Pack - Large (3-pack)
Good idea, no stuffing.
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Reviewed in the United States on May 9, 2026
★★★★★ 3
The Ad got me, the reality didn't
Style: Variety Pack - Large (3-pack)
Directly from the ad- "Exclusive Noisemakers - Each large toy includes 3 high-quality round squeakers to deliver more sound to keep your best friend entertained.". Now my neighbor bought this squirrel with three high-quality squeakers nearly a year ago. It's ragged and tattered I just recently sewed it up for him where he chewed the one leg odd, but those three noise makers are still squeaking. Whe I got my pup, I immediately went to buy one and they were no longer selling them, so I've been on a search for one or an equivalent. These are not.
There's no stuffing to get all over the place when your pup breaks into it, a plus. However the squeakers weren't particularly loud and were silenced in a few hours. Two were dead and the remaining one was very well on its way. The toy itself was pretty much intact but that had more to do with the lack of attention from the dog than how rugged the toy is. He'll pick it up once in a while but it certainly didn't meet my expectations.
The good thing is that there are three of them so I can give him some brief excitement in the future. Wouldn't buy again.
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Reviewed in the United States on February 24, 2023
★★★★★ 5
Strong Chewer Friendly Toy
Style: Variety Pack - Large (3-pack)
My dog is a rough chewer and these last a really long time (clearly since this beaver's face is long gone! The no stuffing is a win too for cleaning up afterwards.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Longest living toy ever!
Style: Variety Pack - Large (3-pack), Style: Variety Pack - Large (3-pack)
This review is 2 years in the making! Purchased over 2 years ago, all three are still in active play, still squeek, with no holes.
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Reviewed in the United States on May 18, 2026