The starter on a 2007 Mustang is mounted to the engine’s bellhousing on the passenger side, near the transmission.
For the 2005–2009 Mustangs, including those with the 4.6-liter V8 in GT models and the 4.0-liter V6 in base models, the starter is a cylindrical unit bolted to the bellhousing between the engine block and the transmission. It engages the flywheel or flexplate when you turn the key. Accessibility can vary based on the exact engine bay layout, exhaust routing, and whether headers or heat shields are present, which might necessitate moves to reach the mounting bolts or wiring connections.
How to locate it in your engine bay
To identify the starter on your car, look for a small cylindrical motor bolted to the bellhousing on the passenger side of the engine. It will have two electrical connections: a large battery cable connected to the main terminal and a smaller wire from the ignition circuit. In many cars, it sits low in the engine bay, near where the engine and transmission meet, and may be partially obscured by exhaust components or heat shielding.
Notes for maintenance and removal
If you’re planning to replace or service the starter, always disconnect the battery first and support the vehicle if you’ll be working underneath. Depending on the specific configuration, you may need to temporarily relocate or remove heat shields or a section of exhaust to access the mounting bolts and electrical connections.
Summary
In a 2007 Ford Mustang, the starter is mounted to the bellhousing on the engine’s passenger side, near the transmission. This location is consistent across the era’s Mustangs with the 4.6L V8 and the 4.0L V6, though exact access can vary due to exhaust routing and engine bay layout. Verify by visually locating the cylindrical starter connected to the bellhousing and noting its heavy battery cable and smaller trigger wire before any work.