Standard Ignition US-843 Ignition Lock Cylinder and Switch

Ignition Lock Cylinder and Switch for Nissan Maxima

Standard Ignition US-843 is a coded ignition lock cylinder and switch assembly with keys for select Nissan Maxima models. It combines the ignition switch and lock assembly into one column-mounted unit for direct replacement service on the steering column.

• Part number: US-843
• Coded ignition lock cylinder and switch assembly
• Includes ignition switch and lock assembly with keys
• Column mounting location
• 2 connectors, male and female
• 10 blade terminals
• Terminal and connector layout for vehicle-specific electrical connection
• Cross-reference: 487003Y225, CS1203

Fitment Details

Fits 2005-2006 Nissan Maxima, N/A. Fits 2002-2003 Nissan Maxima, N/A. This Nissan Maxima ignition switch and lock assembly is built for the listed model years and matches the coded column-mounted configuration used in those applications.

What This Part Is Used For

• Replacing a worn or damaged ignition lock cylinder
• Restoring key operation when the ignition switch no longer turns smoothly
• Addressing intermittent start or no-start conditions tied to the ignition switch
• Correcting key-to-lock mismatch on coded ignition systems
• Replacing a faulty column-mounted ignition switch assembly on Nissan Maxima models

Installation Notes and Tips

Verify the existing connector count, terminal layout, and column mounting style before installation. This assembly is coded and includes keys, so matching the vehicle application and keying requirements is important for proper operation. Professional installation is recommended when diagnosing ignition, starting, or steering-column electrical concerns.

Quality Assurance

Standard Ignition supplies replacement ignition components for service applications, and US-843 is built to match the specified vehicle fitment and electrical configuration for the listed Nissan Maxima models.