Yikesai Ignition Coil Pack Kit for GM 5.3L/6.0L V8 — 8-Piece Direct-Fit Replacement, OE Cross-Reference 12611424

The Yikesai 12611424 ignition coil pack kit is an 8-piece replacement set engineered to restore reliable spark and ignition for GM 5.3L and 6.0L V8 engines.

If your Silverado, Tahoe, Sierra, Escalade or related GM vehicle is showing misfires, rough idle, lower fuel efficiency, or hard starts, worn or failing ignition coils are a common cause. This Yikesai kit replaces OE square-style coil packs (including part numbers 12611424, 12619161, 12570616 and equivalents) to help bring your engine back to proper combustion timing without the high price of dealer parts.

Which vehicles and engines will these coil packs fit?

These coils are designed for a wide range of GM cars and trucks equipped with 5.3L and 6.0L V8 engines. They match the square coil-pack footprint used across many Chevrolet, GMC, Cadillac, Pontiac and Buick models.

• Common fits: Silverado 1500/2500HD/3500HD, Tahoe, Suburban, Sierra, Yukon, Avalanche.
• Also fits: Camaro, Corvette, Colorado, Express, Savana, Denali-style variants where applicable.
• Cross-references include 12611424, D510C, UF-413 and several OE numbers—verify with your VIN or core part before ordering.

How will replacing coils affect engine performance?

Fresh ignition coils deliver steadier high-voltage pulses to the spark plugs, which improves combustion consistency. That typically reduces misfires, stabilizes idle, and can recover lost throttle response and fuel economy.

• Reduces misfire codes and rough running at idle or under load.
• Helps restore smoother acceleration and engine power delivery.
• Can improve MPG by ensuring sparks ignite fuel cleanly and efficiently.

What quality and warranty does the Yikesai kit offer?

Yikesai manufactures these coils to meet common OEM form and function standards using durable materials and proper electrical specifications. The kit includes eight coils and a one-year warranty against manufacturing defects.

• Built for consistent electrical output and thermal endurance in engine bay conditions.
• Direct-fit square coil design for straightforward swap with factory connectors and mounting points.
• Comes as an 8-piece set ideal for full-bank replacement to avoid mixed-aged ignition parts.

How do I install these coils and what should I check first?

Installation is a basic-to-intermediate DIY job on most GM V8s: disconnect battery, remove engine cover if present, unplug connectors, and swap coils. Always inspect spark plugs, wiring harnesses, and connector pins while replacing coils for best results.

• Recommended: replace spark plugs at the same time if they are worn or beyond service interval.
• Check coil electrical connectors for corrosion or damaged terminals before reassembly.
• If symptoms persist after coil replacement, run a diagnostic scan to confirm no other ignition or fuel system faults remain.

Who this is for: Drivers and mechanics who own GM trucks, SUVs, or performance cars with 5.3L or 6.0L V8 engines seeking a cost-effective, full-bank coil replacement. The Yikesai 12611424 set is aimed at people wanting OEM-style fitment and dependable ignition performance for everyday driving and towing duties, or anyone preparing a vehicle for inspection or engine troubleshooting.