Karlyn 11855T Ignition Coil

Karlyn Bremi-STI Ignition Coil for BMW

The Karlyn Bremi-STI 11855T ignition coil is an OE replacement ignition coil for select BMW 318i and BMW 318is applications. It is specified as a coil-only part and is used with PN 432/432S looms, including PN 432w/Loom and PN 432Sw/Loom configurations.

Key Features

• Ignition coil replacement for select BMW 3 Series applications
• Coil only design for use with the correct loom assembly
• OE replacement part for factory-style service
• Brand line: Bremi-STI
• Part number: 11855T

Fitment Details

Fits 1991-1993 BMW 318i, N/A. Fits 1991-1993 BMW 318is, N/A. This part cross-references Bremi-STI applications for the same ignition coil setup.

Product Description

Karlyn 11855T is an ignition coil for BMW 318i and BMW 318is models from 1991 through 1993. The Bremi-STI product line identifies this as a coil-only component, so it is meant to be used with the specified loom assemblies rather than as a standalone universal ignition part. For buyers searching for a BMW 318i ignition coil or BMW 318is ignition coil, 11855T provides a direct-fit replacement path when the matching loom part numbers are already in place.

Common Issues This Part May Address

• Weak or inconsistent spark output
• Engine misfire under load
• Hard starting related to ignition coil failure
• Rough idle caused by ignition breakdown
• Loss of ignition performance in aging BMW 318i and 318is systems

Installation Notes and Tips

Verify the loom part number before ordering, since this ignition coil is listed for use with PN 432/432S looms, including PN 432w/Loom and PN 432Sw/Loom. Confirm the vehicle year and model match the listed BMW 318i or BMW 318is fitment, and inspect related ignition components during service. Use the correct coil-only configuration for the vehicle’s existing ignition setup.

Quality Assurance

Karlyn Bremi-STI parts are cataloged as OE replacement components for the listed application. Part number 11855T is identified for the specified BMW fitment and loom pairing.