Function and quality assurance: Tested to the same standards as equipment parts to deliver performance and long service life. Compatibility and fit: O2 sensor spacer adapter with M18x1.50 thread. Universal fit for all vehicles with standard O2 sensor threads and for any model using M18x1.50 specification. Design and materials: Spacers include a small stainless steel filter to help eliminate CELs related to catalyst efficiency below spec. Key specifications: M18x1.50 thread; O2 sensor spacer adapter; designed for use with standard O2 sensors. Benefits and performance: Maintains proper sensor spacing and alignment when installing O2 sensors, while providing a stainless filter element to address CEL concerns. Practical applications: When upgrading or replacing exhaust components (eg, catalytic converter or headers) that alter sensor depth, use the spacer to restore correct sensor position and functionality. During O2 sensor replacement on vehicles with M18x1.50 threads, enabling a proper fit in limited clearance spaces. For projects requiring a universal spacer solution across multiple vehicles with standard O2 sensors, ensuring consistent compatibility with M18x1.50 specifications. Use scenarios: Install aftermarket exhaust components and need to maintain accurate sensor distance to avoid performance issues. worn sensors while maintaining proper spacing and sensor alignment in compact engine bays. Apply in crossmodel builds or fleet maintenance where vehicles share the M18x1.50 O2 sensor thread standard.