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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
Gen III HEMI V8 Injector Harness - Stock/USCAR style injectors - 558-210Overview: An Injector Harness is required and Holley offers two. The harness with USCAR Stock injector connectors will cover most applications that are using the factory injectors. The other harness is for the Bosch and Holley (or Jetronic Minitimer) injector connector that is commonly used in aftermarket applications for larger injectors. View the image gallery to see images of both types of injectors. Features: Take control of your Gen III HEMI with
Overview:
An Injector Harness is required and Holley offers two. The harness with USCAR/Stock injector connectors will cover most applications that are using the factory injectors. The other harness is for the Bosch and Holley (or Jetronic/Minitimer) injector connector that is commonly used in aftermarket applications for larger injectors. View the image gallery to see images of both types of injectors.
Features:
- 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 | 3 |
| Harness Application | HEMI |
| Harness Type | Injector |
| Product Type | HEMI Injector Harness |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 2423 reviews
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Product Reviews
★★★★★ 5
Works and last
Color: White, Size: 6 Feet, Style: 1-Pack
The product material and length are as described. I haven’t had a problem with this cord yet and have traveled with it quite a bit. It works on my Google phone as well as my iPad. So far it seems to have great durability and it’s easy to use
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Reliable cable that checks every box
Color: Black, Size: 6 Feet, Style: 1-Pack
I've been using these and they have been great across the board. Charges fast, the 6 foot length is perfect for reaching an outlet without being right on top of it, and the build quality feels solid and durable. The USB-IF certification gives you peace of mind that it's not going to damage your devices.
For an Amazon Basics cable the quality is genuinely impressive and the price makes it a no brainer. Stock up on a few and put them everywhere you need them.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Great
Color: White, Size: 6 Feet, Style: 1-Pack
Great charger works like factory Apple charger
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Necessary for some devices
Color: White, Size: 6 Feet, Style: 1-Pack
Necessary for USB-C charging non USB-C compliant devices. Not all devices will charge on a USB-C to USB- C connection. USB-C is a protocol that many devices do not follow but have the same connector.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Continues to exceed expectations
Number of Items: 1
This product blew me away. I was on the skeptical side after reading some of the negative reviews, but I have never had any issues. The charger is very fast and charged my phone in 2 hours from <5%. That's faster than some of my corded chargers. The cord and charger are of very high quality and even withstood my cat biting at it. Unfortunately, it does not include a charging block/usb wall adapter, but as long as you use a block/wall adapter that can support the charger (I used a Samsung fast charging block), it works great. The product will even blink if you are using an incompatible block. The rubber on the bottom of the charger prevents it from sliding around, and the overall appearance is slick and great. The product took less than 1 minute for me to set up and is very easy to use. Overall, it's an amazing product for an amazing price.
Regarding some of the negative reviews; I see lots complaining about how hot the product gets. My block and the charger itself did get warm after extended periods of charging, however, there are safeguards that will pause charging if either get too hot. It hasn't gotten hot enough to be worrisome or even activate the safeguards, so I am not concerned about it at all.
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Reviewed in the United States on July 7, 2024