5PCS Gear Shift Knob Adapter Kit, Fits M8 M10 M12 M14 Thread Sizes, Converts to M18x1.5 Thread, Aluminum Shifter Thread Adapter for Manual Transmissio

5 Sizes Included: This shift knob adapter set includes 5 individual adapters with internal threads: M8×1.25, M10×1.25, M10×1.5, M12×1.25, and M14×1.5 for different shifter rods M18×1.5 Output Thread: Each shifter knob adapter converts to a fixed M18×1.5 external thread for compatibility with aftermarket shift knobs Non-Universal Fitment: This car shift knob adapter kit is not universal. Each adapter must match the exact shifter rod thread size before purchase Premium Aluminum Construction: Made of high-strength aluminum alloy for durability and corrosion resistance. Precision-machined threads ensure accurate engagement, making this set of automotive shifter adapters resistant to loosening under daily use Easy Installation: Simple screw-on installation with no drilling required. Quickly install or replace shift knobs within minutes, making it convenient for DIY vehicle upgrades