4x140 Bolt Pattern
A bolt pattern, or lug pattern, is a parameter that defines the number of lug holes in the wheel and the diameter of the circle (PCD, Pitch Circle Diameter) that the lug holes form. 4x140 bolt pattern, or 4x5.51 when converted to inches, indicates the wheel has 4 lug holes spaced evenly on a circle with a diameter of 140 millimeters or 5.51 inches. The 4x140 bolt pattern is common to Peugeot and Subaru models.
The 4x140 bolt pattern, commonly recognized in the automotive world, pertains to the arrangement of the bolt holes on a wheel. This specification illustrates that there are four bolt holes, evenly spaced in a circle with a diameter of 140 millimeters from the center of one bolt to the opposite bolt. This pattern is crucial for vehicle owners and mechanics alike to ensure that wheels are compatible with a vehicle's hub. Notoriously associated with older models of Subaru vehicles among a few others, the 4x140 bolt pattern is less common in modern vehicles, which tend to favor configurations with a higher number of bolts for increased stability and load distribution. Selecting the correct bolt pattern is vital for the safe and effective operation of a vehicle, as it ensures the wheel is properly centered and securely attached to the hub, eliminating potential vibration or alignment issues while driving.
Similar 4-Lug Patterns
Here are similar 4-lug patterns that can be used as an alternative to 5x114.3 bolt pattern.
| Bolt Pattern | Number of Lugs | PCD (mm) |
|---|---|---|
| 4x100 (4x3.94) | 4 | 100 |
| 4x101 (4x3.98) | 4 | 101 |
| 4x108 (4x4.25) | 4 | 108 |
| 4x114.3 (4x4.5) | 4 | 114.3 |
| 4x98 (4x3.86) | 4 | 98 |
4-Lug Pattern Torque Sequence
The lug bolt pattern torque sequence is a critical procedure designed to ensure that the wheel is mounted securely and uniformly on the vehicle's hub, preventing potential issues such as wheel vibration or hub damage. This sequence varies slightly depending on the number of lug bolts but always follows a pattern that promotes even distribution of force. When tightening lug nuts or bolts on a wheel with a 4-lug pattern, follow the torque sequence shown below to ensure even and secure tightening. The process usually involves multiple passes: initially tightening bolts to a lower torque setting to seat the wheel properly, followed by final tightening to the manufacturer's recommended torque specification using a calibrated torque wrench. Adhering to this sequence and using the correct torque ensures the wheel is balanced and securely attached, reducing the risk of brake rotor warping and ensuring the safety of the vehicle.
Vehicles with 4-Lug Wheel Bolt Pattern
There are 3 vehicle models that have 4x140 bolt pattern. Select vehicle model for additional information.
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