Ignition Coil + Spark Plugs for Chevrolet Caprice (2011-2012) 6.0L

Direct-Fit Ignition Coil and Spark Plug Kit for 2011-2012 Chevrolet Caprice (WM)

What it Does: The Ignition Coil + Spark Plug Kit replaces deteriorated factory ignition components on the 2011-2012 Caprice to restore primary spark energy, eliminate high-RPM misfires, and stabilize idle quality.

The Stock Chevrolet Caprice Ignition Breakdown

Under severe duty cycles, the factory ignition coils on the L77 6.0L V8 suffer from thermal fatigue and internal winding breakdown. Prolonged exposure to high underhood temperatures causes micro-cracking in the primary epoxy potting, allowing high-voltage secondary arc-through to ground. Simultaneously, aging factory plugs suffer electrode erosion and widening gaps. This increases the required breakdown voltage beyond what a heat-soaked coil can provide, leading to cylinder-specific misfires, unburned fuel entering the catalytic converters, sluggish throttle response, and erratic idle stability under sustained load.

The Engineering Solution

This complete ignition overhaul kit provides balanced, high-dielectric replacement coils and precision-gapped NGK spark plugs engineered to withstand severe thermal cycling. The replacement coil bodies utilize high-temperature thermoplastic housings paired with premium copper wire windings, ensuring rapid saturation and high secondary voltage discharge without dielectric breakdown. Paired with corrosion-resistant, trivalent metal-plated NGK plugs with anti-fouling core designs, this direct-fit system maintains optimal arc stability across the entire powerband of the WM chassis 6.0L platform.

What's Included

• 8 Ignition Coils
• 8 NGK Spark Plugs

Technical Specifications

Compatibility

• 2011 Chevrolet Caprice PPV 6.0L V8
• 2012 Chevrolet Caprice PPV 6.0L V8

Frequently Asked Questions & Fitment Warnings

Does this fit the WM Caprice?

Yes, this is a direct fit for the 2011-2012 Chevrolet Caprice equipped with the L77 6.0L V8 engine. Spark plug wires are not included with this kit; confirm engine displacement and coil connector style before ordering.

Are spark plug wires included with this kit?

No, this package includes the eight coil-on-plug ignition coils and eight spark plugs only; factory plug wires must be reused or replaced separately.

The Chevrolet Muscle Caliber

Engineered to withstand the demanding duty cycles of high-displacement GM small blocks, this ignition kit restores the immediate throttle response, peak combustion efficiency, and full 355-horsepower output demanded by the WM platform.