Understanding the bolt pattern of your Subaru is essential when selecting compatible wheels, as it ensures proper fitment and vehicle safety. The bolt pattern, or Pitch Circle Diameter (PCD), specifies the number of lug holes and the diameter of the circle they form.
Subaru 5-Bolt Wheel Compatibility
Subaru vehicles predominantly feature two 5-bolt patterns: 5×100 mm and 5×114.3 mm. The “5” indicates five lug holes, while “100” or “114.3” denotes the diameter in millimeters.
- 5×100 mm Pattern: Common in models like the Subaru Impreza (up to 2014), 2004 WRX STi, and standard Impreza variants.
- 5×114.3 mm Pattern: Found in newer models, including the Subaru WRX and WRX STI (2015 onwards), Ascent, and certain Legacy and Outback versions.
Model-Specific Bolt Patterns
Here’s a breakdown of bolt patterns across various Subaru models:
| Model | Years | Bolt Pattern |
|---|---|---|
| Impreza | Up to 2014 | 5×100 mm |
| Impreza WRX | Up to 2014 | 5×100 mm |
| Impreza WRX STI | 2005–2021 | 5×114.3 mm |
| Legacy | Up to 2014 | 5×100 mm |
| Legacy | 2015–Present | 5×114.3 mm |
| Outback | Up to 2014 | 5×100 mm |
| Outback | 2015–Present | 5×114.3 mm |
| Forester | Up to 2018 | 5×100 mm |
| Forester | 2019–Present | 5×114.3 mm |
| BRZ | 2012–Present | 5×100 mm |
| Ascent | 2019–Present | 5×114.3 mm |
Note: Variations may exist based on trim levels and special editions. Always verify your vehicle’s specifications before purchasing wheels.
Ensuring Wheel Compatibility
When selecting wheels, consider the following factors beyond bolt pattern:
- Center Bore: Subaru typically uses a 56.1 mm center bore. Ensure the wheel’s center bore matches or exceeds this measurement.
- Offset: The wheel’s offset affects its positioning relative to the suspension and fenders. Subaru models generally have offsets ranging from 35 to 55 mm.
- Thread Size: Most Subaru models use M12×1.25 lug nuts.
Conclusion
Understanding your Subaru’s bolt pattern and related specifications is crucial for selecting compatible wheels that ensure safety and performance. Always consult your vehicle’s manual or a professional before making modifications.
FAQ
- What is the bolt pattern for a 2015 Subaru WRX?
- The 2015 Subaru WRX features a 5×114.3 mm bolt pattern.
- Can I fit 5×114.3 wheels on a Subaru with a 5×100 bolt pattern?
- No, wheels with different bolt patterns are not directly interchangeable without adapters, which can affect vehicle performance and safety.
- Do all Subaru models have the same center bore size?
- Most Subaru models have a 56.1 mm center bore, but it’s essential to verify for specific models.
- What is the wheel offset range for Subaru vehicles?
- Subaru wheel offsets typically range from 35 to 55 mm, depending on the model.
- Why is it important to match the bolt pattern when selecting wheels?
- Matching the bolt pattern ensures proper wheel fitment, which is crucial for vehicle safety and performance.
