Name: Wheel Front Ltd. Liability Company
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HOLLEY EFI Pro-Billet Ignition Adapter 558-325
SKU: HLY558-325
Product information
Weight0.14 lbs
Dimensions4.75 × 2.45 × 2.45 in
Harness End 1
MSD Distributor

Harness End 2
Holley EFI

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Quantity
Each

Details...
Original price was: $45.00.Current price is: $40.48.Add to cart

Original price was: $45.00.Current price is: $40.48.
Quantity Only 9 left in stock!
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HOLLEY Wiring Harness Adapter Hyperspark Ignition 558-323
SKU: HLY558-323
Product information
Weight0.16 lbs
Dimensions4.8 × 2.4 × 2.4 in
Harness End 1
HyperSpark Distributor

Harness End 2
Holley EFI

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Quantity
Each

Details...
Original price was: $52.00.Current price is: $47.24.Add to cart

Original price was: $52.00.Current price is: $47.24.
Quantity Only 9 left in stock!
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HOLLEY GM LS Coil Sub Harnesses 558-321
SKU: HLY558-321
Product information
Weight0.855 lbs
Dimensions10.9 × 10.75 × 2.3 in
Harness End 1
Stock Harness

Harness End 2
Stock Coil Harness

Harness Purpose
Factory Coil Harness

Loom / Sleeve Included
Yes

Quantity
Pair

Details...
Original price was: $220.00.Current price is: $199.95.Add to cart

Original price was: $220.00.Current price is: $199.95.
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HOLLEY Coil-Near-Plug Sub Harness – Big Wire 558-318
SKU: HLY558-318
Product information
Weight1.6 lbs
Dimensions10.6 × 10.3 × 2.3 in
Harness End 1
Stock Harness

Harness End 2
Holley Smart Coil

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Quantity
Each

Details...
Original price was: $324.00.Current price is: $293.95.Add to cart

Original price was: $324.00.Current price is: $293.95.
Quantity Only 4 left in stock!
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HOLLEY HP EFI Sub-Harnesses – Smart Coil 558-312
SKU: HLY558-312
Product information
Weight1.125 lbs
Dimensions10.7 × 10.4 × 2.3 in
Harness End 1
Coil Harness

Harness End 2
Holley HP / Dominator EFI

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Universal
Yes

Details...
Original price was: $316.00.Current price is: $286.95.Add to cart

Original price was: $316.00.Current price is: $286.95.
Quantity Only 5 left in stock!
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HOLLEY Hemi Coil Harness Late TYCO 558-311
SKU: HLY558-311
Product information
Weight0.882 lbs
Dimensions10.75 × 10.5 × 2.3 in
Harness End 1
Coil Harness

Harness End 2
Holley HP / Dominator EFI

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Quantity
Each

Details...
Original price was: $220.00.Current price is: $199.95.Add to cart

Original price was: $220.00.Current price is: $199.95.
Quantity Only 2 left in stock!
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HOLLEY EFI Main Power Harness 558-308
SKU: HLY558-308
Product information
Weight1.7 lbs
Dimensions11.3 × 10.6 × 3.8 in
Harness Purpose
Main Power

Loom / Sleeve Included
Yes

Quantity
Each

Terminated
Yes

Fuel Injection Type
MFI

Details...
Original price was: $118.00.Current price is: $106.95.Add to cart

Original price was: $118.00.Current price is: $106.95.
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HOLLEY LS Coil On Plug Harness Universal 558-307
SKU: HLY558-307
Product information
Weight1.5 lbs
Dimensions11.35 × 10.75 × 3.8 in
Harness End 1
Stock GM LSx Coil Harness

Harness End 2
Holley HP / Dominator EFI

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Quantity
Each

Details...
Original price was: $212.00.Current price is: $191.95.Add to cart

Original price was: $212.00.Current price is: $191.95.
Quantity Only 2 left in stock!
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HOLLEY Ford TFI Ignition Harness 558-305
SKU: HLY558-305
Product information
Weight0.45 lbs
Dimensions7.5 × 7.4 × 3.8 in
Harness End 1
Ford TFI Distributor

Harness End 2
Holley Avenger / HP / Dominator EFI

Harness Purpose
Adapter

Quantity
Each

UPC Code
90127666784

Details...
Original price was: $142.00.Current price is: $128.95.Add to cart

Original price was: $142.00.Current price is: $128.95.
Quantity Only 9 left in stock!
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HOLLEY HEI Ignition Harness 558-304
SKU: HLY558-304
Product information
Weight0.3 lbs
Dimensions7.3 × 7.2 × 3.9 in
Harness End 1
GM Small Cap HEI Distributor

Harness End 2
Holley Avenger / HP / Dominator EFI

Harness Purpose
Adapter

Quantity
Each

UPC Code
90127666777

Details...
Original price was: $67.00.Current price is: $60.75.Add to cart

Original price was: $67.00.Current price is: $60.75.
Quantity Only 7 left in stock!
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HOLLEY Injector Harness Ford w/ Jetronic Injectors 558-213
SKU: HLY558-213
Product information
Weight0.75 lbs
Dimensions10.75 × 10.45 × 2.3 in
Harness End 1
Bosch EV1

Harness End 2
Ford V8 Male Plug

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Quantity
Each

Details...
Original price was: $226.00.Current price is: $204.95.Add to cart

Original price was: $226.00.Current price is: $204.95.
Quantity Only 2 left in stock!
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HOLLEY Injector Harness – Ford USCAR/EV6 Style Injector 558-212
SKU: HLY558-212
Product information
Weight0.75 lbs
Dimensions10.6 × 10.3 × 2.3 in
Harness Purpose
Fuel Injection

Loom / Sleeve Included
Yes

Quantity
Kit

Terminated
Yes

Fuel Injection Type
EFI

Details...
Original price was: $220.00.Current price is: $199.95.Add to cart

Original price was: $220.00.Current price is: $199.95.
Quantity Only 1 left in stock!
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HOLLEY Injector Harness V8 Evenly Spaced USCAR 558-210
SKU: HLY558-210
Product information
Weight0.753 lbs
Dimensions10.75 × 10.75 × 2.3 in
Harness End 1
USCAR EV6

Harness End 2
Bosch Jetronic / Minitimer

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Quantity
Each

Details...
Original price was: $220.00.Current price is: $199.95.Add to cart

Original price was: $220.00.Current price is: $199.95.
Quantity Only 1 left in stock!
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HOLLEY Injector Harness – 16 Injectors – Unterminated 558-207
SKU: HLY558-207
Product information
Weight1.52 lbs
Dimensions10 × 10 × 2 in
Harness End 1
Bosch EV1

Harness End 2
Holley Dominator EFI

Harness Purpose
MPFI Harness

Loom / Sleeve Included
Yes

Quantity
Kit

Details...
Original price was: $255.00.Current price is: $230.95.Add to cart

Original price was: $255.00.Current price is: $230.95.
Quantity Only 1 left in stock!
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HOLLEY EFI Injector Harness – Universal Unterminated 558-204
SKU: HLY558-204
Product information
Weight0.885 lbs
Dimensions10.8 × 10.7 × 2.3 in
Harness Purpose
Fuel Injection

Loom / Sleeve Included
Yes

Quantity
Kit

Fuel Injection Type
EFI

Hardware Included
Yes

Details...
Original price was: $255.00.Current price is: $230.95.Add to cart

Original price was: $255.00.Current price is: $230.95.
Quantity Only 1 left in stock!
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HOLLEY Injector Wiring Harness V8 EV6 Style Injectors 558-201
SKU: HLY558-201
Product information
Weight0.66 lbs
Dimensions6.55 × 5.95 × 4.25 in
Harness End 1
USCAR EV6

Harness End 2
Holley Dominator EFI

Harness Purpose
Adapter

Loom / Sleeve Included
Yes

Quantity
Each

Details...
Original price was: $202.00.Current price is: $182.95.Add to cart

Original price was: $202.00.Current price is: $182.95.
Quantity Only 9 left in stock!
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Frequently Asked Questions

What sets Wheel Front Shop apart from the rest?

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.

How fast do we process backorders for auto parts?

We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.

Why Choose Our International Shipping?

We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.

How long does shipping take?

Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%

Can I track my order?

Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.

Do you have my product in stock?

Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.

My goods arrived damaged, what should I do?

We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.

How do I return an order?

You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

HOLLEY

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