BANG4BUCK 8Pcs UF271 D581 Ignition Coils Pack + 8mm Spark Plug Wires for Cadillac/GM

Overview

Upgrade your vehicle’s ignition system with the BANG4BUCK 8Pcs Ignition Coils Pack, designed to work with Cadillac, Chevrolet, and GMC models. This comprehensive kit pairs eight D581 UF271-style square ignition coils with a complete set of 8mm spark plug wires and a dedicated wire separator loom. It’s built to deliver a robust, direct-fit replacement that emphasizes reliability, consistent performance, and smoother operation under a variety of driving conditions.

What’s Inside and What You’ll Get

• Eight ignition coils (D581/UF271 family) for a full replacement
• One set of eight 8mm spark plug wires with reinforced construction
• One wire separator loom to keep cables neatly organized
• 12 months warranty with free replacement or refund for defective items

Fit, Compatibility, and Installation

The kit is designed for direct fitment and straightforward installation. Before purchasing, compare the coil part numbers to ensure compatibility with your vehicle’s system. The pack references multiple part numbers (12556893, 12558693, 12570553, 3859078, 38590782, 392889925, D581, UF271), which broadens its applicability across several GM platforms.

Performance and Benefits (What to Expect)

• UF271 ignition coils provide a rapid voltage rise, potentially helping with idle stability and reducing engine jitter after coil aging
• Square coil design paired with pure copper windings and epoxy from Japan aims to enhance throttle response and gas mileage over time
• Spark plug wires feature fiberglass braid and carbon impregnated core for strength and dependable conductivity
• Direct-fit replacement can support smoother engine operation, especially after long road hours

Materials and Build Quality

Attention to material detail includes pure copper coils sourced in Germany and epoxy components from Japan, chosen to contribute to long-lasting performance under varying temperatures and road conditions. The included wires are designed to withstand typical under-hood heat and vibration while maintaining good electrical integrity.

Warranty and Support

All parts are backed by a 12-month warranty that covers free replacement or refund for any item deemed defective, giving you peace of mind as you install and test the kit on your vehicle.

Usage Notes

For best results, verify fitment against your vehicle’s part numbers and consult your service manual for proper wiring routing. While improvements in idle smoothness or throttle response may be possible, outcomes can vary by vehicle condition, maintenance history, and driving style.