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What size door speakers are in the 2008 Toyota Tundra?

Front door speakers are typically 6.5 inches in diameter; rear-door sizes vary by cab configuration and trim, commonly 6.5 inches on models with rear speakers, or 5.25 inches on some base configurations.


The 2008 Tundra offered multiple audio configurations, including standard sound and optional premium systems. Speaker sizes depend on the specific trim, cab style, and factory audio package. This guide outlines the typical sizes and how to verify the exact fit for your vehicle.


Front door speakers


Understanding the front-door size helps with replacements and upgrades; the most common factory size is:



  • 6.5 inches (165 mm) in diameter as the standard front-door size

  • Some aftermarket options or specific trim packages may use a 6.75-inch diameter, though this is less common


For best results, confirm by measuring or consulting your vehicle’s OEM specifications before purchasing aftermarket components.


Rear door speakers


Rear-door sizes vary more with trim and cab configuration. The typical scenarios are:



  • 6.5 inches (165 mm) in diameter on models equipped with rear factory speakers

  • 5.25 inches (133 mm) in diameter on certain base configurations or where space constraints exist


Because rear speaker size can differ by trim and production date, it's wise to double-check the exact size for your specific truck using the VIN or the factory service information, or by inspecting the speaker mounting area.


How to verify your exact size



  1. Remove the door panel or speaker grille to access the speaker.

  2. Measure the mounting hole diameter and assess the available mounting depth.

  3. Consult the owner's manual, Toyota service information, or a reputable fit guide (e.g., Crutchfield) for the precise OE size for your trim and year.

  4. Choose a replacement that matches the mounting diameter and depth, using adapters if needed.


Testing fitment before final installation helps prevent clearance issues with window regulators or wiring harnesses.


Summary


In most 2008 Toyota Tundra configurations, the front-door speakers are 6.5 inches in diameter. The rear-door speaker size depends on the cab and audio package, commonly 6.5 inches for trucks with rear speakers but sometimes smaller 5.25 inches on certain base setups. Always verify the exact size for your specific vehicle using the VIN, service documentation, or a trusted speaker-fit guide before purchasing replacements.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.