Ignition Coil and Iridium Spark Plugs for Buick Regal (2011-2013) 2.0L
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Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2011-2013 Buick Regal
Replaces degraded factory ignition components: Restores primary and secondary spark energy delivery across high-boost operating conditions on GM turbocharged engines.
The Stock Regal Ignition Coil Insulation Breakdown
Under elevated cylinder pressures and continuous thermal cycling, the OEM ignition coils on the Regal turbo platform suffer dielectric insulation fatigue. Radiated engine bay heat degrades the internal epoxy potting, causing internal winding resistance shifts and high-load secondary arcing. This results in misfire codes (P0300-P0304), sluggish boost onset, and rough idle characteristics.
The Engineering Solution
This direct-replacement kit features coil-on-plug assemblies engineered with high-grade copper primary and secondary windings encased in high-dielectric epoxy housing. Paired with fine-wire iridium spark plugs engineered to withstand severe combustion temperatures, this assembly ensures minimal quenching, low firing voltage requirements, and reliable flame propagation under full turbo boost.
Technical Specifications
| Fitment | 2011-2013 Buick Regal 2.0L |
| Engine / Chassis | 2.0L Turbo Ecotec (LHU) / GM Epsilon II |
| Stock Output | 220 hp / 258 lb-ft (Approx) |
| Part Number | UF491, UF-491, 12638824, 12578244 |
Compatibility
- 2011 Buick Regal CXL Turbo 2.0L L4 Gas
- 2012 Buick Regal Base Turbo / GS 2.0L L4 Gas / Flex
- 2013 Buick Regal Base Turbo / GS 2.0L L4 Gas / Flex
The Buick Combustion Caliber
Built to factory resistance profiles and pin terminal specifications, ensuring seamless plug-and-play installation, immediate engine response, and fault-free operation without triggering CEL conditions.
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