Ignition Coil and Platinum Spark Plug Kit for Rolls Royce Ghost (2011-2012) 6.6L

Direct-Fit Ignition Coil and Platinum Spark Plug Kit for 2011-2012 Rolls Royce Ghost (RR4)

What it Does: The Ignition Coil and Platinum Spark Plug Kit replaces worn ignition components on the 2011-2012 Rolls Royce Ghost to eliminate misfires, stabilize idle fluctuations, and restore factory boost delivery under load.

The Stock Rolls Royce Ghost Ignition Breakdown

The twin-turbocharged N74B66 6.6-liter V12 operates under elevated thermal loads and high cylinder pressures. Over operational cycles, excessive heat soak degrades the internal primary and secondary copper windings within the pencil-style ignition coils, resulting in dielectric breakdown, casing micro-cracks, and inconsistent secondary voltage. Simultaneously, fine-wire spark plug electrodes erode under prolonged boost pressure, causing wider spark gaps that overwork the coils. This degradation leads to low-RPM hesitation, erratic idle profiles, and unburned fuel triggering cylinder misfire fault codes across the engine control modules.

The Engineering Solution

This service kit addresses ignition degradation by pairing high-dielectric pencil coils with precision Bosch double-platinum spark plugs (ZR5TPP33). The replacement ignition coils feature reinforced thermoplastic housings and high-temperature potting resin to insulate internal windings against thermal breakdown. Each coil incorporates factory-matched 3-terminal blade connectors that lock directly into the RR4 wiring harness for zero resistance loss. The accompanying Bosch platinum plugs feature laser-welded platinum firing pins and ground electrodes to maintain precise gap tolerances and withstand extreme combustion temperatures without premature quenching or fouling.

What's Included

• 6x Pencil Coil-on-Plug Ignition Coils (3-terminal blade connector)
• 6x Bosch Double Platinum Spark Plugs (ZR5TPP33)

Technical Specifications

Compatibility

• 2011 Rolls Royce Ghost Base 6.6L V12 Twin-Turbo (RR4 / N74B66)
• 2012 Rolls Royce Ghost Base 6.6L V12 Twin-Turbo (RR4 / N74B66)
• 2012 Rolls Royce Ghost EWB (Extended Wheelbase) 6.6L V12 Twin-Turbo (RR4 / N74B66)

Frequently Asked Questions & Fitment Warnings

Does this fit the RR4 Ghost?

Yes, this is a direct fit for the 2011-2012 Rolls Royce Ghost equipped with the N74B66 engine. Note: This 6-cylinder service package covers one cylinder bank; two kits are required to service all 12 cylinders of the V12 platform.

What are the installation torque and handling requirements?

Install components on a completely cooled engine, thread the Bosch plugs by hand to prevent cross-threading, torque to factory specification (23 Nm / 17 lb-ft), firmly seat the coils, and clear stored DME misfire codes.

The Rolls Royce Precision Standard

Maintaining factory European precision requires strict adherence to ignition tolerances, ensuring seamless combustion balance across all twelve cylinders with zero diagnostic trouble codes or hesitation under wide-open throttle.