Direct fit for GM OEM part #55509813 and replacement #12718935, engineered to match the original crankcase pressure sensor’s specifications, no extra modification needed for installation, saves your time and labor on fitting. Manufactured to strict testing requirements, the crankcase pressure sensor accurately transmits pressure data to ECM, maintains optimal engine crankcase operation, prevents abnormal pressure buildup and engine damage. Made of high-quality materials, resistant to high temperature, oil and vibration in engine compartment, ensures long service life and stable performance in all driving conditions. Plug-and-play design with exact connector matching, no professional tools required for basic installation. Please check Amazon Fitment Filter and Description to see if this item will work on your vehicle before purchase. ASIN B0GJZPY2WK Model 55509813 Brand Name Koruidar Part Number 55509813 Manufacturer Koruidar Included Components Crankcase Pressure Sensor