<p>This coolant temperature sensor is designed as a replacement auto part for OE/OEM part number(s) 6PT009309-541. It is commonly used for BMW. Before ordering, compare the OE number, connector shape, mounting points, and original part photo to confirm fitment.</p><h3>Features</h3><ul> <li> <strong>Product type:</strong> Coolant Temperature Sensor</li> <li> <strong>OE/OEM part number(s):</strong> 6PT009309-541</li> <li> <strong>Compatible vehicle brand:</strong> BMW</li> <li> <strong>SKU:</strong> 13621433077</li> </ul><h3>Fitment &amp; Compatibility</h3><ul> <li> <strong>Fitment summary:</strong> Vehicle Make: BMW Part Type: Coolant Temperature Sensor OE/OEM Numbers: 6PT009309-541</li> <li> <strong>Key fitment note:</strong> Match the OE/OEM number first. Vehicle model names and production years can vary by market, trim, engine, and connector style.</li> <li> <strong>What to compare:</strong> Original part number, plug shape, pin count, mounting tabs, bracket position, side/location, and overall size.</li> </ul><h3>Before Purchase Checklist</h3><ul> <li>Confirm your original OE/OEM part number before purchase.</li> <li>Compare the connector shape, pin count, mounting points, and installation position with your original part.</li> <li>Check vehicle year, make, model, engine, trim, and left/right or front/rear position when applicable.</li> <li>If you are unsure, email your VIN, OE number, and original part photo to info@NexuParts.com for fitment help before ordering.</li> </ul><h3>Package Includes</h3><p>1 x Coolant Temperature Sensor. Product images show the actual style or compatible replacement style for reference.</p><h3>Important Note</h3><p>Professional installation is recommended. Electrical parts, sensors, switches, and modules that have been installed, modified, damaged, or show signs of use may not be eligible for return unless defective or incorrectly shipped.</p> <!-- NexuParts-product-faq-start --><section class="product-faq product-faq--fitment" data-faq-purpose="ai-search-fitment-conversion"><h3>Product FAQ</h3> <p><strong>Fitment summary:</strong> Coolant Temperature Sensor; OE/OEM 6PT009309-541; for BMW, the listed model, the listed year range, the matching engine or trim, the matching installation position. Please verify the OE/OEM number and original connector before ordering.</p> <div class="product-faq__item"> <h4>Will this Coolant Temperature Sensor fit my vehicle?</h4> <p>This Coolant Temperature Sensor is intended for vehicles that match OE/OEM part number(s) 6PT009309-541. Confirm the vehicle details and fitment notes: BMW, the listed model, the listed year range, the matching engine or trim, the matching installation position. Model names alone are not enough because connector style, year range, trim, engine, and installation position can vary.</p> </div> <div class="product-faq__item"> <h4>How do I confirm OE/OEM compatibility for 6PT009309-541?</h4> <p>Use the number printed on your original part first, then compare it with this listing's SKU, MPN, OE/OEM numbers, and product photos. OE number matching is usually more reliable than matching only by vehicle model name.</p> </div> <div class="product-faq__item"> <h4>What should I compare before ordering this Coolant Temperature Sensor?</h4> <p>Compare connector shape, pin count, sensor length, mounting points, thread or insert style, and installation location. If any detail differs from your original part, contact us before ordering or installation.</p> </div> <div class="product-faq__item"> <h4>What symptoms can a failing Coolant Temperature Sensor cause?</h4> <p>A failing or incorrect Coolant Temperature Sensor may cause incorrect signal readings, warning lights, intermittent operation, or diagnostic fault codes. Symptoms alone do not confirm fitment, so verify the OE number and physical part details before purchase.</p> </div> <div class="product-faq__item"> <h4>Can I get fitment help before ordering?</h4> <p>Yes. Email your VIN, original OE/OEM p