Karlyn 491SW/LOOM Spark Plug Wire Set

Karlyn Bremi-STI Spark Plug Wire Set for BMW

The Karlyn Bremi-STI 491SW/LOOM spark plug wire set is an OEM-style ignition wire solution with black OEM boot type and OEM engine fitment details. It is built for BMW applications that require a loom and marten protection, making it a direct-match option for select 3 Series and Z3 models.

Key Features

• Part number: 491SW/LOOM
• Brand line: Bremi-STI
• OEM boot type for factory-style connection points
• Black wire color for a clean OE appearance
• OEM engine specification
• Fits BMW 318ti, 318i, 318is, and Z3 applications with loom and marten protection

Product Details

This Karlyn Bremi-STI spark plug wire set is built for BMW ignition systems that call for an OEM-style wire layout and loom-equipped routing. The 491SW/LOOM designation identifies the correct application family for select BMW 318ti, BMW 318i, BMW 318is, and BMW Z3 models, helping buyers match the wire set to the vehicle’s original configuration. The Bremi-STI product line focuses on ignition components for European vehicle applications, and this part follows that OE-oriented approach with factory-style boot and engine specifications.

Compatible With: Fits 1995-1999 BMW 318ti, N/A; Fits 1993-1998 BMW 318i, N/A; Fits 1996-1998 BMW Z3, N/A; Fits 1993-1997 BMW 318is, N/A. This part cross-references Bremi-STI 491SW/LOOM for the same application.

Common Problems This Part Helps Address

• Misfires caused by worn or damaged ignition wires
• Hard starting related to weak spark delivery
• Rough idle from inconsistent ignition output
• Voltage leakage from aging wire insulation
• Incorrect routing issues on BMW models that use a loom

Installation Notes and Tips

Verify the vehicle year, model, and ignition layout before installation. This part is listed for BMW applications with loom and marten protection, so confirm the existing routing and connector style match the OE configuration. Inspect spark plugs, coil connections, and wire routing at the same time to help maintain consistent ignition performance.

Quality Assurance

Karlyn Bremi-STI ignition components are cataloged for OE-style fitment on European vehicles, with application-specific details used to match the original BMW setup.