Ignition Coil and Iridium Spark Plug Kit for Rolls Royce Phantom (2004-2012) 6.7L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2004-2012 Rolls Royce Phantom (RR1)

What it Does: The Ignition Coil and Iridium Spark Plug Kit replaces degraded ignition components on the 2004-2012 Rolls Royce Phantom to restore primary combustion stability, eliminate cylinder misfires, and smooth engine idle.

The Stock Rolls Royce Phantom Ignition Breakdown

Under the high-temperature conditions of the deep cylinder head valley on the BMW N73B68 V12, factory pencil coils endure extreme thermal cycling. Over time, internal epoxy insulation breaks down, copper windings develop micro-shorts, and aged silicone boots lose dielectric resistance. Concurrently, factory spark plug gaps erode, elevating secondary coil voltage requirements until the ignition system arcs internally. This breakdown triggers erratic spark delivery, unburnt hydrocarbon build-up, catalyst degradation, intermittent Check Engine Lights (CEL), and noticeable roughness across the RR1 chassis drivetrain.

The Engineering Solution

This service kit restores factory ignition architecture using direct-fit 3-terminal pencil coil-on-plug modules paired with fine-wire iridium-tipped spark plugs. The ignition coils incorporate high-grade dielectric PBT housings and thermal-resistant silicone boots to seal deep plug wells against moisture and oil flashover. Matched with fine-wire iridium center electrodes and dense nickel-alloy ground electrodes gapped to 1.0–1.1 mm, the plugs require significantly lower breakdown voltage. This reduction in electrical stress relieves the ignition drivers, ensures consistent flame kernel development, and resolves intermittent misfires under load.

What's Included

• 6 Pencil-Style Ignition Coils (3-Terminal)
• 6 Iridium-Tip Spark Plugs (Pre-gapped 1.0–1.1 mm)

Technical Specifications

Compatibility

• 2004-2012 Rolls Royce Phantom Base 6.75L V12
• 2008-2012 Rolls Royce Phantom Drophead Coupe 6.75L V12
• 2008-2012 Rolls Royce Phantom Coupe 6.75L V12
• 2005-2012 Rolls Royce Phantom Extended Wheelbase (EWB) 6.75L V12

Frequently Asked Questions & Fitment Warnings

Does this fit the RR1 Phantom?

Yes, this is a direct fit for the 2004-2012 Rolls Royce Phantom equipped with the N73B68 6.75L V12 engine; please note that the V12 requires 12 coils and 12 plugs total, meaning this 6-cylinder kit services one single bank and two kits are required for a complete overhaul.

Should spark plugs and ignition coils always be replaced at the same time?

Yes, replacing both components simultaneously prevents premature secondary coil insulation breakdown caused by widened, worn spark plug gaps.

The Rolls Royce Precision Standard

European luxury V12 platforms demand precise primary resistance matching to operate without triggering sensitive secondary DME ignition fault codes. This matched ignition kit delivers OEM-grade spark consistency to help ensure vibration-free idle and seamless cylinder balance.