Set of 8 UF413 Square Ignition Coils with 8mm 748UU Spark Plug Wires for Chevy Silverado 1500, GMC, Pontiac G8, Grand Prix, H3, Tahoe, Yukon

Condition: Like New
Like new condition

Boost your vehicle’s ignition performance with this set of 8 UF413 square ignition coils and 8mm 748UU spark plug wires. These parts work with Chevy Silverado 1500, select GMC, Pontiac G8, and models like Tahoe or Yukon. Enjoy stronger, more consistent sparks and help your engine run smoother and more efficiently.

Each UF413 ignition coil is designed to either meet or surpass OEM requirements. Installation is direct and easy, thanks to plug-and-play connectors that match most factory setups. The included 8mm 748UU spark plug wires use durable insulation and conduct electricity well, even in harsh driving conditions or temperature changes.

This ignition coil set solves issues such as misfiring, hard starting, engine roughness, or weak acceleration. If your vehicle has problems idling, stalling, or accelerating, old ignition parts could be at fault. Upgrading to these new coils and wires restores reliability and keeps your engine's timing sharp.

Quality materials are key for every cable and coil. The insulation on these spark plug wires keeps electrical flow steady and guards against moisture or debris. Connections are tight to prevent arcing or loss of power. These components last longer than many stock replacements, so you will spend less time with repairs and maintenance over the years.

Always check your vehicle’s manual or existing ignition coils before buying. These are square-shaped UF413 coils, not the rounded type (like UF414). Compare pictures or part numbers to be sure. Using the right type will make installation easier and prevent errors. If you have doubts, ask your mechanic or look up your make, model, and year.

To make installation smooth and stress-free, use a bit of silicone spray on boots and connectors. This helps prevent cracked rubber and makes sure you get a tight fit. Standard hand tools are all you need for most vehicles. Even weekend DIYers can replace these parts at home, but if you’re not sure, ask a pro for help.

Frequently Asked Questions (FAQ)

• Question: How do I know if I need square UF413 coils or round ones for my vehicle?
  Answer: The best way is to look at your current ignition coils. Square UF413 coils have straight sides and right angles, while round (UF414) ones are more cylindrical. Compare the shape and part number. If you don’t have your old parts, check the car’s manual. Many auto supply websites also let you search parts by the vehicle’s make, model, and year. When in doubt, a mechanic can help confirm which part is right. Picking the correct shape ensures your replacement will fit and work as intended.
• Question: What are some benefits of installing new ignition coils and spark plug wires?
  Answer: New ignition coils and wires can fix power loss, reduce chances of misfires, and help your fuel economy. Stronger, more reliable sparks mean your fuel burns more completely. That leads to smoother starts, idling, and better throttle response. Fresh parts also reduce the likelihood of engine codes or check engine lights related to ignition problems. Over time, old or worn ignition coils can break down and lead to costly engine repairs. Upgrading now saves you time and money by avoiding bigger problems later.
• Question: Can I install these coils and wires myself, or do I need professional help?
  Answer: This set is designed for easy at-home installation with basic hand tools. Each coil and wire features connector designs that plug in where old parts were removed. Carefully follow vehicle-specific instructions, and take your time. If you’ve never worked on an engine before, you may want to watch a few video tutorials first. Doing the job yourself saves shop labor costs, but there’s no harm in asking a mechanic if you don’t feel comfortable. Proper installation helps your engine run better and keeps your new parts working their best.

This UF413 ignition coil and spark plug wire kit is a smart choice for routine maintenance or troubleshooting. A well-maintained ignition system is essential for your engine’s health and daily reliability. Each set is built for popular models like the Chevy Silverado and also works well with vehicles like the GMC Sierra, Pontiac G8, or Yukon.

All parts come ready to install. They are tested for excellent performance and reliability. Keep your vehicle reliable for years with one simple upgrade. Find ways to extend engine life and get the best value by regularly checking your ignition system. Read more about ignition system basics and history on Wikipedia.

Explore our automotive collection for other top-rated ignition, coils, spark, and plug products.

Keywords: ignition, coils, spark, plug