FAERSI Ignition Coil Pack for Chevy GMC Cadillac V8/V6 – Direct-Fit UF271 Replacement, High-Energy Spark

FAERSI ignition coil pack: a direct-fit replacement coil pack engineered to restore reliable spark to compatible Chevy, GMC, Cadillac and select GM vehicles.

If your vehicle shows symptoms like engine misfires, rough idle, reduced fuel economy, or a check-engine light that points to ignition faults, worn factory coil packs are often the cause. This FAERSI ignition coil pack is made to match OEM fitment and electrical requirements for many GM V8 and V6 engines, offering an easy bolt-in replacement for part numbers such as UF271, D581, 12558693 and 5C1083.

Which vehicles and OEM numbers does this coil pack work with?

This coil pack is designed for a broad range of GM models including Chevy Silverado, Avalanche, Suburban, Tahoe, Express 3500, GMC Sierra, Yukon, Savana, Cadillac Escalade and compatible Isuzu and Hummer applications. Buyers should verify compatibility by comparing the original coil’s mounting, connector and OEM number before purchase.

• Compatible OEM references: UF271, D581, 12558693, 12556893, 12570553, 5C1083 and related numbers
• Fits GM trucks and SUVs across 1500/2500/3500 series and select commercial models
• Compare your vehicle’s coil pack physical shape and electrical connector prior to ordering

How does the FAERSI coil pack improve engine performance?

By delivering consistent, high-energy spark to the spark plugs, the coil pack helps reduce misfires and restores smoother combustion. The high-quality internal copper windings and robust insulation are built to provide reliable voltage output under heavy load.

• High-energy output for stronger, more consistent sparks
• Improved throttle response and reduced hesitation
• Designed to meet OEM electrical and fitment requirements

How simple is installation and what should I expect during replacement?

Installation is straightforward for anyone comfortable working under the hood: remove the old coil pack, match connectors and mounting points, then bolt in the FAERSI unit. No special tools are usually required beyond basic hand tools, and service time is typically short if you replace the full set.

• Direct-replace design—matches factory mounting and connectors
• Recommended to replace all coils together to prevent staggered failures
• One-year unlimited-mileage guarantee from FAERSI for peace of mind

What are the durability and warranty details?

FAERSI uses high-grade materials, including premium copper windings and improved wire coatings, to resist corrosion and abrasion and to maintain electrical integrity in harsh conditions. The product is backed by a one-year unlimited-mileage guarantee covering manufacturing defects.

• High electrical resistance stability for long-term performance
• Corrosion- and abrasion-resistant materials extend service life
• One-year unlimited-mileage warranty from FAERSI

Who is this for: This coil pack is ideal for owners and technicians working on compatible GM trucks and SUVs who need a cost-effective, OEM-compatible replacement for worn or failing ignition coils. It’s best for those who want reliable spark performance, straightforward installation, and a warranty-backed aftermarket option for part numbers like UF271 and D581.