WAI 17840N Starter

Starter for Subaru and Saab Applications

The WAI 17840N starter is a direct-fit electrical starting component for select Subaru Legacy, Outback, Forester, Impreza, B9 Tribeca, and Saab 9-2X applications. It uses a permanent magnet gear reduction design with a 1.4 kW power rating to deliver the amp output needed for modern vehicles.

Built as a 100% new unit, this starter is made with proprietary components and manufacturing processes to support consistent cranking performance and long service life. The WAI 17840N is a practical replacement choice when you need a starter matched to the original application and rotation requirements.

Key Features

• Brand: WAI
• Part number: 17840N
• Permanent magnet gear reduction design
• 1.4 kW power rating
• 12-volt electrical system
• Counterclockwise (left) starter rotation
• 9-tooth drive
• Flange mounting type
• 100% new, not remanufactured
• Mitsubishi family starter design

Detailed Description

The WAI 17840N starter is engineered for Subaru and Saab vehicles that require a Mitsubishi-style PMGR starter with counterclockwise rotation and a flange mount. It is listed for 2003-2007 Subaru Forester, 2004-2007 Subaru Impreza, 2005-2006 Saab 9-2X, 2005-2007 Subaru Legacy, 2005-2007 Subaru Outback, 2006-2007 Subaru B9 Tribeca, 2008-2011 Subaru Impreza, 2008-2018 Subaru Forester, and 2017-2019 Subaru Legacy and Outback. This part cross-references BBB Industries 17840 for the same application.

For buyers searching for a Subaru Forester starter, Subaru Outback starter, or Subaru Legacy starter, the 17840N provides the key electrical and mounting specifications needed for proper replacement selection. The 9-tooth drive and 12-volt configuration help ensure the starter matches the vehicle’s original starting system requirements.

What This Starter Helps Address

• Engine no-crank condition
• Slow or weak cranking during startup
• Intermittent starter engagement
• Starter motor failure from wear or electrical damage
• Replacement needs after a failed OE-style starter

Installation Notes and Tips

Verify the vehicle’s original starter rotation, tooth count, mounting style, and electrical specifications before installation. Confirm fitment by year, make, and model, especially on Subaru Legacy, Outback, Forester, and Impreza applications where multiple starter configurations may exist. Inspect battery condition, cable connections, and charging system output during replacement to help avoid repeat starting issues.

Quality Assurance

WAI states that this starter is 100% new and manufactured with proprietary components and processes to support maximum life and performance. The 17840N is built to meet the amp output demands of today’s vehicles and to provide a dependable replacement for the listed applications.