WAI 17791N Starter

Starter for Toyota and Lexus Applications

The WAI 17791N starter is a direct-fit electrical starting component for select Toyota and Lexus vehicles. It is built as a 100% new unit, not remanufactured, and uses proprietary components and processes to support long service life and consistent performance.

Compatible With 2000-2009 Toyota Tundra, 2001-2005 Toyota Sequoia, 2003-2009 Toyota 4Runner, and 2003-2004 Lexus GX470 with standard 1.4 kW starting systems.

• Offset gear reduction starter design
• DENSO family application
• 1.4 kW power rating
• Clockwise (right) starter rotation
• 9-tooth drive configuration
• Flange mounting type
• 100% new construction

Detailed Product Overview

WAI 17791N is engineered for vehicles that require dependable cranking output from a compact starter assembly. The offset gear reduction design helps deliver the amp output needed for modern starting demands, while the DENSO-family fitment and flange mount support proper alignment in the listed Toyota and Lexus applications. This starter is a practical replacement choice for 4Runner, Tundra, Sequoia, and GX470 models equipped with the standard 1.4 kW setup.

This part cross-references BBB Industries 17791 for the same application.

Common Starting Problems It Can Address

• No-crank or intermittent crank condition
• Slow engine cranking during startup
• Starter motor failure from worn internal components
• Starting issues related to weak output in the original unit
• Replacement needs for a damaged or non-functioning starter assembly

Installation Notes and Tips

Verify the vehicle’s starter family, rotation, tooth count, and mounting style before installation. Confirm the application matches the listed Toyota 4Runner, Tundra, Sequoia, or Lexus GX470 fitment and the standard 1.4 kW configuration. Inspect battery condition, cable connections, and charging system performance during replacement to help avoid repeat starting complaints.

Quality Assurance

WAI states that this starter is manufactured as a new unit using proprietary components and processes to support durability and performance in daily use.