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Description
Gen III HEMI Coil Harness - Early Coils 558-310Gen III HEMI Coil Harness, Early Coils, for HP EFI & Dominator EFI Features: Take control of your Gen III HEMI with Holley EFI by controlling fuel and spark. Great for power upgrades and engine swaps. 1 Capable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection2 Harnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available3 Each
Gen III HEMI Coil Harness, Early Coils, for HP EFI & Dominator EFI
Features:
- Take control of your Gen III HEMI with Holley EFI by controlling fuel and spark. Great for power upgrades and engine swaps.1
- Capable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection2
- Harnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available3
- Each Harness is designed in fit and function specifically for the Gen III HEMI engine platform4
- All wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter5
- Factory style terminations provide a strong, secure connection6
- Connectors are OEM grade for a correct, positive fit7
- Each harness is routed through a split-loom braid for protection and great looks8
Specs:
| Brand | Holley EFI |
|---|---|
| Category Filter | Fuel Injection - EFI |
| Clearance Category | Fuel Injection - EFI |
| Emission Code | 4 |
| Harness Application | HEMI |
| Harness Type | Ignition |
| Product Type | HEMI Coil Harness |
| Warning | California Proposition 65 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
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 30 reviews
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Product Reviews
★★★★★ 5
They last for months
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
This is my second order of this product. I have 2 medium size dogs and they love them. The nice thing is a 3 pack of these is that they will last them for a few months.
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Reviewed in the United States on June 9, 2026
★★★★★ 4
Bones
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
Great product but my dogs don't seem to be interested
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
★★★★★ 5
Indestructible
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
Finally found a chew bone strong enough for our pit mix, would highly recommend for an agressive chewer! Will buy again
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Reviewed in the United States on June 12, 2026
★★★★★ 5
My four approve
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
My dogs, which I have 4, 2 labradors, one Jack Russell and one medium smallish mixed breed dog, all really love the bones. Three of them seem to be vigorous chewers the mixed breed girl being the toughest one on bones. These bones are holding up really well and the dogs really seem to like them. The dogs have not been able to get any big chunks off of the bones so I feel safe letting them have them even when I’m not watching. I would recommend these to Pet owners.
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Reviewed in the United States on May 22, 2026
★★★★★ 3
Size
Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
I have a medium sized dog and these were to big for him. A bigger dog would love them. Great for chewers.
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Reviewed in the United States on May 23, 2026