Toyota 90919-01191 Plug, Spark

Spark plug replacement requires a spark plug socket, extension and ratchet. The socket is lined with a rubber grommet to protect the porcelain insulator of the spark plug and to hold the plug while you insert it into the spark plug hole. A wire-type feeler gauge is needed to check and adjust the spark plug gap and a torque wrench to tighten the new plugs to the specified torque. When replacing the plugs, purchase the new plugs, adjust them to the proper gap and replace each plug one at a time. It's essential that you obtain the correct plugs for your specific vehicle. Inspect each of the new plugs for defects. If there are any signs of cracks in the porcelain insulator of a plug, don't use it. Check the electrode gaps of the new plugs. If the gap is incorrect, use the notched adjuster on the feeler gauge body to bend the curved side electrode slightly. Platinum and iridium spark plugs generally come pre-gapped. If the side electrode is not exactly over the center electrode, use the notched adjuster to align them. If compressed air is available, blow any dirt or foreign material away from the coil/spark plug area before proceeding. All models have a separate coil mounted over each spark plug. Remove the ignition coil. Remove the spark plug. Compare each old spark plug with the chart shown to determine the overall running condition of the engine. Prior to installation, apply a coat of anti-seize compound to the plug threads. Fit a short piece of rubber hose over the end of the spark plug. The flexible hose acts as a universal joint to help align the plug with the plug hole. Should the plug begin to cross-thread, the hose will slip on the spark plug, preventing thread damage. Tighten the plug to the torque. Attach the coil to the new spark plug, again using a twisting motion until it is firmly sealed on the end of the spark plug. When installing coils, tighten the mounting bolts securely. Follow the above procedure for the remaining spark plugs, replacing them one at a time.

You can compare each old spark plug with the provided chart to assess the engine's overall running condition.

No, you should be cautious when handling platinum or iridium spark plugs, as they are pre-gapped and should not be adjusted.

YES 90919-01191 CORRECT WITH VIN