Standard Ignition US-630 Ignition Switch

Ignition Switch for 2002 GMC Sierra 1500

Standard Ignition US-630 is a column-mounted ignition switch built with a snap-fit attachment, coded design, and a 5-pin male connector layout. It is made for direct service replacement on the 2002 GMC Sierra 1500 with 18 female terminals and 4-wheel steering.

Key Features

• Column-mounted ignition switch for service replacement
• Snap-fit attachment for secure installation
• Coded switch design for proper electrical indexing
• 5 connector cavities with rectangular male connector shape
• 18 blade-style female terminals for the specified application
• Copper alloy conductors for strong electrical conductivity and reduced resistance
• 100% tested for mechanical and electrical switching performance

Detailed Description

Standard Ignition US-630 is engineered for dependable ignition circuit control in the 2002 GMC Sierra 1500. The switch uses high-grade materials and copper alloy conductors to maintain consistent electrical transfer, while the coded configuration helps ensure correct fit and function in the column location. This part cross-references 1S10941 and KS6989 for the same application.

Common Replacement Reasons

• Intermittent no-start or crank/no-crank condition
• Key position issues when turning to accessory, run, or start
• Electrical contact wear inside the column ignition switch
• Loss of consistent power delivery to ignition circuits
• Fault codes or accessory operation problems tied to switch failure

Installation Notes and Tips

Fits 2002 GMC Sierra 1500, column. Verify the vehicle uses the 18-terminal female configuration and 4-wheel steering before installation. Match the coded connector layout and terminal style to the original switch, and confirm all electrical connections are fully seated after replacement. Standard Ignition US-630 is listed as switch only; no hardware or instructions are included.

Quality Assurance

Standard Ignition tests each switch for mechanical and electrical switching performance before release. The brand’s construction focus on durable materials and copper alloy conductors supports consistent service replacement quality for the 2002 GMC Sierra 1500.