Standard Ignition US-639 Ignition Switch

Ignition Switch for Isuzu and Honda Applications

Standard Ignition US-639 is a column-mounted ignition switch built for direct replacement in select Isuzu and Honda vehicles. It uses a bolt-on attachment method with one rectangular male connector and 8 female blade terminals for a straightforward OE-style electrical interface.

Compatible With 1998-2004 Isuzu Rodeo, 2002-2004 Isuzu Axiom, 2001-2003 Isuzu Rodeo Sport, 1998-2000 Isuzu Amigo, and 1998-2002 Honda Passport.

Key Features

• Column-mounted ignition switch for steering column installation
• Bolt-on attachment method for secure fitment
• 1 rectangular male connector
• 8 female blade terminals
• Direct replacement for select Isuzu and Honda models
• Standard Ignition US-639 part number for catalog matching

Detailed Product Overview

This ignition switch is specified for vehicles that use a column-mounted electrical switch assembly to control ignition functions. Standard Ignition US-639 is built with a rectangular connector layout and blade-style terminals to match the factory-style connection pattern used on the listed applications. It is a practical replacement choice for drivers servicing an Isuzu Rodeo ignition switch, Honda Passport ignition switch, or related Isuzu Axiom, Rodeo Sport, and Amigo applications.

This part cross-references CS998 and KS6998 for the same application.

Common Problems This Part Can Address

• Intermittent no-start condition caused by worn ignition switch contacts
• Key position issues when turning from OFF to START
• Electrical accessory loss tied to switch wear
• Ignition circuit faults related to damaged column switch terminals
• Replacement needs after switch failure in the steering column

Installation Notes and Tips

Verify connector shape, terminal count, and column mounting location before installation. Match the vehicle year and model exactly to the fitment list, especially on 1998-2004 Isuzu Rodeo and 1998-2002 Honda Passport applications. Inspect the harness connector and column interface for wear or heat damage before connecting the new switch.

Quality Assurance

Standard Ignition supplies replacement electrical components for service applications, and US-639 is cataloged to match the listed OE-style fitment and connector configuration.