Karlyn 491W/LOOM Spark Plug Wire Set

Karlyn Bremi-STI Spark Plug Wire Set

The Karlyn Bremi-STI 491W/LOOM spark plug wire set is an OEM-style ignition wire replacement with black OEM boots and OEM engine fitment details. It is built for BMW 318i, 318is, 318ti, and Z3 applications that use a loom-style wire layout.

Key Features

• OEM boot type for factory-style connection at the plugs and ignition points
• Black wire finish for a clean, original-equipment appearance
• OEM engine specification for direct-fit ignition service
• Bremi-STI product line for BMW ignition wire applications
• Part number 491W/LOOM for accurate ordering and catalog matching

Product Details

Karlyn 491W/LOOM is a spark plug wire set in the Bremi-STI line, made for BMW ignition systems that require a loom configuration. It is compatible with 1993-1998 BMW 318i, 1993-1997 BMW 318is, 1995-1999 BMW 318ti, and 1996-1998 BMW Z3. The OEM boot type and OEM engine specification support factory-style routing and connection points for these BMW 318i, 318is, 318ti, and Z3 applications.

The Bremi-STI line identifies this as a BMW-focused ignition wire solution within Karlyn’s catalog. If you are sourcing a BMW 318ti spark plug wire set, BMW 318i ignition wire replacement, or a 491W/LOOM wire set for a loom-equipped engine bay, this part number helps narrow the correct application quickly.

Common Issues Addressed

• Misfires caused by worn or deteriorated ignition wires
• Hard starting related to weak spark delivery
• Rough idle from inconsistent ignition transfer
• Engine hesitation under load from damaged wire insulation or boot wear
• Incorrect replacement selection when matching BMW loom-style wire routing

Installation Notes

Verify the vehicle year, model, and loom-style ignition layout before installation. Match each wire to the original routing path and confirm secure boot seating at the spark plug and ignition connection points. For BMW 318i, 318is, 318ti, and Z3 applications, compare the existing wire set and connector style to part number 491W/LOOM before removal.

Quality Assurance

Karlyn Bremi-STI ignition components are cataloged for OE-style fitment and application-specific BMW service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.