Ignition Coil and Iridium Spark Plugs for Cadillac CTS (2014-2019) 2.0L
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Direct-Fit Ignition Coil & Iridium Spark Plug Kit for 2014-2019 Cadillac CTS
Restores Factory Ignition Health: Direct-replacement complete ignition overhaul kit engineered to eliminate secondary voltage breakdown, high-boost misfires, and rough idle cycles on the 2.0L Turbo LTG platform.
The Stock CTS LTG Ignition Degradation
The forced-induction 2.0L LTG operates under intense cylinder pressures and severe thermal cycling inside the Alpha chassis engine bay. Over extended service intervals, factory coil pack boots harden and internal epoxy insulations degrade, permitting high-voltage micro-arcing and carbon tracking. Concurrently, factory direct-injection combustion temperatures erode standard electrode gaps, increasing resistance and overstressing the primary windings. This thermal breakdown leads to spark blowout under peak load, sluggish throttle transitions, and intermittent P0300-P0304 diagnostic trouble codes.
The Engineering Solution
This service kit integrates four coil-on-plug assemblies manufactured with high-conductivity oxygen-free copper windings and reinforced thermoplastic housings potted in high-dielectric epoxy. Direct-fit blade connectors seat securely into the OEM harness to eliminate pin fretting. Paired with fine-wire laser-welded iridium spark plugs, the package withstands high combustion temperatures and maintains gap stability under boost, delivering reliable flame kernel initiation, crisp cold starts, and consistent burn efficiency.
Technical Specifications
| Fitment | 2014-2019 Cadillac CTS (2.0L Turbo) |
| Engine / Chassis | 2.0L Ecotec LTG Turbo / Alpha Platform |
| Stock Output | 272 hp / 295 lb-ft (Approx) |
| Part Number | UF680, UF-680, C869, C1827, 5C1884, 12654078, 12627120, 12652400 |
Compatibility
- 2014 Cadillac CTS 2.0L L4 Turbo (Base, Luxury, Performance, Premium)
- 2015 Cadillac CTS 2.0L L4 Turbo (Base, Luxury, Performance, Premium)
- 2016 Cadillac CTS 2.0L L4 Turbo (Base, Luxury, Performance, Premium)
- 2017 Cadillac CTS 2.0L L4 Turbo (Base, Luxury, Premium Luxury)
- 2018 Cadillac CTS 2.0L L4 Turbo (Base, Luxury, Premium Luxury)
- 2019 Cadillac CTS 2.0L L4 Turbo (Base, Luxury, Premium Luxury)
The Cadillac Precision Standard
Calibrated specifically for luxury sport sedans, these ignition components maintain OEM dwell timing and signal integrity, preventing electromagnetic interference (EMI) and maintaining zero check engine light conditions across all driving modes.
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