NGK 49177 Ignition Coil

NGK COP Ignition Coil for BMW and Rolls-Royce

The NGK COP (Pencil Type) Ignition Coil Multi-Pack is built for distributorless ignition systems that demand stable voltage delivery and consistent spark performance. Engineered to meet or exceed OE standards, this ignition coil is a direct-fit service part for a wide range of BMW and Rolls-Royce applications.

Part number 49177 is backed by NGK’s long OE-focused manufacturing experience and rigorous lab testing. If you are replacing a failing coil on a BMW 335i, BMW X5, or Rolls-Royce Ghost, this NGK ignition coil is designed for dependable operation in demanding engine environments.

Key Features

• COP (pencil type) ignition coil for distributorless ignition systems
• 12-volt design with 3-terminal blade connection
• Female connector with male terminals
• Built to meet or exceed OE standards for durability and performance
• Developed and tested in an ISO 17025 accredited lab
• Direct replacement coverage for many late-model BMW and Rolls-Royce vehicles
• Part number 49177 / NGK part number U5055-6

Product Details

NGK’s COP ignition coil line is focused on OE-style fit, stable ignition output, and long service life. This pencil-type coil is not oil filled and does not include a mounting bracket, making it a clean replacement choice for engines that use coil-on-plug ignition. The design supports precise spark delivery across a broad range of BMW and Rolls-Royce platforms, including turbocharged and high-output applications.

This part cross-references Bosch 0221504470 and Delphi GN10328 for the same application. Part number 49177 is also listed under NGK U5055-6, helping simplify cross-reference lookup during ignition system repair.

Common Problems This Coil Can Address

• Engine misfire under load
• Rough idle or uneven acceleration
• Hard starting caused by weak ignition output
• Check engine light related to ignition coil faults
• Loss of power from inconsistent spark delivery

Installation Notes and Tips

Verify connector style, terminal count, and engine application before installation. This coil uses a blade terminal layout with a female connector and male terminals, so matching the original configuration is important for proper fitment. Inspect spark plugs and related ignition components at the same time, since worn plugs can shorten coil life and contribute to repeat misfire concerns.

Compatible With BMW applications including 128i, 135i, 328i, 335i, 535i, X3, X5, M3, M4, M2, and 7 Series models across the listed years, plus Rolls-Royce Ghost, Phantom, Wraith, Dawn, and Cullinan applications shown in the fitment data. For BMW 335i, BMW X5, and Rolls-Royce Ghost service work, confirm the exact year and engine configuration against the vehicle catalog before ordering.

Quality Assurance

NGK manufactures ignition coils to OE-level standards and validates designs in an ISO 17025 accredited test lab under severe operating conditions. That testing approach supports consistent performance and durability across real-world driving demands. Warranty information was not provided in the product data.