Pynccid UF413 8-Pack Square Ignition Coils – Red, Fits 5.3L GM Trucks (2007-2011)

Upgrade your ignition with Pynccid UF413 square coils

This eight‑coil red set from Pynccid is tuned for 5.3L V8 GM engines found in popular trucks and SUVs from 2007 to 2011, including Silverado, Avalanche, Tahoe, Suburban, Yukon, and Sierra. It’s designed as a direct OE replacement for part numbers 12570616 and UF413, and it features the square UF413 coil shape for precise compatibility with your vehicle’s ignition system. Before you buy, verify your current coil shape to ensure a perfect match.

What makes this coil kit a thoughtful upgrade

Engineered for reliability, these coils combine a durable build with a design focused on consistent spark delivery. The red exterior signals a robust, heat‑resistant construction, while the internal components are chosen to handle everyday driving and the rigors of heavier use. The set uses premium windings and rugged encapsulation to help maintain performance across weather and road conditions, giving you a practical upgrade path without altering your engine design.

• Quality materials: German copper windings and a polyester rubber encapsulation support stable spark energy.
• Durable construction: corrosion‑resistant terminals and a rugged build for long‑term reliability.
• Direct OE replacement: designed to fit the 12570616 and UF413 specifications for seamless integration.
• Plug‑and‑play installation: ready for straightforward DIY upgrades with minimal fuss.

Benefits you may experience on the road

Upgrading to the UF413 square coils can potentially deliver stronger spark energy and steadier ignition performance, which may contribute to smoother acceleration and more consistent starts in varied driving conditions. While results can vary by vehicle and setup, many users appreciate the confidence of a refreshed ignition system and the reduced risk of misfires under typical daily use.

• Potential improvements: smoother idle and steadier starts on 5.3L V8 GM engines.
• Compatibility: eight coils match the original system for a balanced upgrade.
• Durability: designed to withstand demanding driving scenarios over time.

Fitment, tips, and support

These coils are articulated as an exact OE replacement for the 2007–2011 GM trucks and SUVs listed above. A simple plug‑and‑play approach helps with a DIY upgrade; during assembly, a light spray of silicone on rubber seals can help protect against cracking and maintain long‑term performance. Pynccid also offers 1‑year product quality support to assist with questions or installation concerns.

In summary, the Pynccid UF413 eight‑coil set provides a practical upgrade path for owners looking to refresh a worn ignition system on 5.3L V8 GM vehicles. It blends a distinctive red look with durable construction and straightforward installation, all aimed at restoring reliable ignition performance without overpromising guaranteed results.