Standard Ignition US-439L Ignition Lock Cylinder

Ignition Lock Cylinder for Select GM and Suzuki Models

The Standard Ignition US-439L ignition lock cylinder is a coded replacement built for precise installation and dependable key operation. It is designed for select Chevrolet Aveo, Chevrolet Aveo5, and Suzuki Forenza applications that use a column-mounted ignition lock cylinder.

With solid brass tumblers, chrome plated brass keys, and a die-cast zinc lock core, this US-439L replacement supports smooth turning and consistent lock function. It includes instructions and is coded for installation on vehicles that require security access during setup.

Key Features

• Coded ignition lock cylinder for direct replacement service
• Column mounting location
• Solid brass tumblers for precise key engagement
• Chrome plated brass keys and die-cast zinc lock core
• Instructions included for installation guidance
• Compatible with select Chevrolet Aveo, Chevrolet Aveo5, and Suzuki Forenza models

Detailed Product Overview

Standard Ignition US-439L is engineered to match the original lock cylinder profile for accurate installation and reliable operation. It is built for vehicles that use a column-mounted ignition lock and require a coded replacement with keys included. This part number, US-439L, is intended for select 2004-2008 Chevrolet Aveo, 2006-2008 Chevrolet Aveo5, and 2004-2008 Suzuki Forenza applications, with fitment notes that exclude immobilizer and anti-theft equipped vehicles where specified.

This part cross-references 4H1711 and CS911L for the same application.

What This Part Helps Address

• Worn or sticking ignition lock cylinder operation
• Key that no longer turns smoothly in the ignition
• Replacement needs after lock cylinder wear or internal tumbler damage
• Loss of original key function on select Chevrolet Aveo and Suzuki Forenza vehicles
• Service replacement for column-mounted ignition lock assemblies

Installation Notes and Tips

Installation requires attention to the vehicle’s anti-theft security system. For listed Chevrolet Aveo and Aveo5 applications, a scan tool with anti-theft security access is required for installation, and the vehicle must be without an immobilizer or anti-theft system where noted. For Suzuki Forenza applications, verify the vehicle is without keyless entry before ordering. Confirm the original lock cylinder style and column mounting location before installation.

Quality Assurance

Standard Ignition builds this lock cylinder with brass and zinc components selected for consistent key operation and accurate fitment. The design reflects the brand’s focus on technician-oriented replacement parts and OE-style installation accuracy.