What is the bolt pattern on a Lexus IS300?
The IS300 uses a 5-lug bolt pattern with a 114.3 mm bolt circle, commonly written as 5x114.3 or 5x4.5 inches.
In practical terms, this determines which wheels will bolt on your car and how well they center on the hub. For the IS300, this pattern is standard across the model’s main market years and is shared with many other Toyota/Lexus vehicles from the era. Always verify the hub bore and wheel offset in addition to the bolt pattern when shopping for wheels or adapters.
Bolt pattern basics
Knowing the bolt pattern helps you assess wheel compatibility at a glance and avoid buying wheels that won't fit.
Key facts about the IS300's wheel mounting are summarized below:
- Bolt pattern: 5 lugs on a 114.3 mm circle (5x114.3).
- Common alternative description: 5x4.5 inches.
- Hub bore: typically 60.0 mm, which centers the wheel on the hub; if your new wheels have a larger bore, you may need hub-centric rings.
With these basics in mind, you can verify wheel compatibility and plan for any hub rings or spacers that might be needed.
Generational and market notes
Across the IS line, the bolt pattern remained consistent, making wheels from various years or markets broadly interchangeable for the IS300 family. The first-generation IS300 (approximately 2001–2005 in most markets) uses the 5x114.3 pattern, and later IS models such as the IS250/IS350 (2006–2013) also use 5x114.3 with a 60.0 mm hub bore.
In practice, this means a wheel sourced for a late-model Lexus or Toyota with a 5x114.3 pattern is typically compatible with an IS300, though you should still confirm the exact hub bore and offset before purchasing.
Wheel fitment tips
When upgrading wheels, always check the hub bore and required center rings, and confirm the wheel offset and clearance for brake calipers and fenders. If in doubt, consult the wheel or tire shop and verify with your vehicle's VIN or official specs.
Once you have confirmed the bolt pattern and bore, you can focus on choosing wheels that match your desired width, diameter, and offset to maintain proper handling and avoid rubbing.
Summary: The Lexus IS300 uses a 5x114.3 bolt pattern (5 lug, 114.3 mm). This pattern is consistent across generations and is shared with other Toyota/Lexus models, with a 60.0 mm hub bore; always verify hub bore and offset for compatibility.
