Beck Arnley 178-8397 Direct Ignition Coil

Direct Ignition Coil for Lexus and Toyota

The Beck Arnley 178-8397 direct ignition coil is built for foreign nameplate applications that require OE-level form, fit, and function. It is a practical replacement for ignition systems on Lexus GS300, Lexus IS300, Lexus SC300, and Toyota Supra models listed below.

• Direct ignition coil for confirmed Lexus and Toyota fitments
• OE-spec replacement focused on proper form, fit, and function
• Beck Arnley 178-8397 for import ignition service
• Fits 1998-2005 Lexus GS300, N/A
• Fits 2001-2005 Lexus IS300, N/A
• Fits 1998-2000 Lexus SC300, N/A
• Fits 1998 Toyota Supra, N/A

OE-Style Replacement Details

Beck Arnley sources parts to match foreign nameplate OE specifications, and this direct ignition coil follows that approach for the listed Lexus and Toyota applications. The 178-8397 is intended for drivers and technicians replacing a failed ignition coil on a Lexus GS300, Lexus IS300, Lexus SC300, or Toyota Supra while maintaining the original equipment style of the ignition system. This part cross-references no additional part numbers in the provided data.

Common Problems This Part Can Address

• Engine misfire on a Lexus GS300, Lexus IS300, Lexus SC300, or Toyota Supra
• Rough idle caused by weak ignition output
• Hard starting related to coil failure
• Loss of power under load from inconsistent spark delivery
• Check engine light conditions tied to ignition coil faults

Installation Notes and Tips

Verify the vehicle year and model against the fitment list before installation. Inspect the spark plug, coil connector, and surrounding ignition components for wear or contamination during service. Because this part contains lead (PB), follow all applicable handling and disposal requirements during installation and replacement.

Quality Assurance

Beck Arnley parts are sourced to meet foreign nameplate OE specifications for form, fit, and function. The 178-8397 is backed by that OE-focused sourcing approach for the listed Lexus and Toyota applications.