🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
Language





Couldn't load pickup availability
Free UK delivery on every order. Orders are processed within 1–3 working days and delivered across the UK in 2–5 working days by tracked service. No minimum spend.
We currently deliver to United Kingdom addresses only. Delivery times are estimates and can be longer for the Highlands, Islands and Northern Ireland or during busy periods. See our Shipping Policy for full details.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
The HAYIAUTO UF413 Square Ignition Coils Set pairs eight high-performance coils with durable spark plugs and premium wires designed to refresh ignition reliability across a broad range of GM trucks and SUVs. This kit is built to withstand demanding driving conditions, delivering a strong, consistent spark when you need it most. Curious drivers may notice smoother starts, steadier idling, and more responsive acceleration in everyday use—without promising specific results for every vehicle.
Each component is chosen to support reliable performance under real-world conditions. The coils are designed for high-temperature environments, while the platinum plugs resist heat and corrosion. The wires feature low resistance for efficient power transfer and EMI suppression to minimize interference, helping engine systems maintain steadiness during operation.
Beyond raw performance, the kit is designed with practicality in mind. It includes a clear set of part numbers to aid compatibility checks, and the components are organized to simplify installation for qualified technicians. The aim is to provide a reliable upgrade path for a wide array of GM vehicles, including Silverado, Suburban, Tahoe, Express, Yukon, Savana, CTS, and Escalade models across multiple engine sizes.
This set covers a broad spectrum of GM vehicles, spanning 4.3L to 6.2L V8 configurations and numerous model years. As with any aftermarket kit, please verify exact vehicle compatibility by comparing your OE numbers, year, and engine size with the kit’s specifications and the listing notes at the top of the product page. Professional installation is recommended to ensure the parts fit correctly and safely within your engine bay.
HAYIAUTO emphasizes premium quality, competitive pricing, and dependable customer service. Each component undergoes quality control checks to meet reliability expectations, and our team offers technical support to assist with compatibility questions or installation guidance. If you need help after purchase, reaching out to our support team is encouraged so we can work toward a satisfactory solution.
Q: Will this kit fit my GM vehicle?
A: Compatibility varies by model; please verify year, engine size, and OE numbers against the listing notes.
Q: Is professional installation recommended?
A: Yes. For proper fit and safety, have a qualified technician install the kit.
Free tracked delivery to any UK address on every order, with no minimum spend. Orders are processed within 1–3 working days and standard UK delivery then takes 2–5 working days; remote areas can take a little longer. You receive a tracking link by email as soon as your order is dispatched.
Please inspect your order on arrival. If anything is wrong, faulty or damaged, email plentytorqueauto@gmail.com with your order number and photos and we will put it right. Changed your mind? Email us before sending anything back and we will confirm the return address and instructions. Hazardous and flammable items cannot be returned. Full details are in our Refund Policy and Shipping Policy.
Thanks for subscribing!
This email has been registered!
| Product | SKU | Description | Collection | Availability | Product type | Other details |
|---|