5572391 P5572391 Engine Computer Board ECU Electronic Control Unit Cummins ISL8.9 CM2450 ECM. Compatible with: Fit For Cummins ISB CM2450 Engine Computer Module ECM ECU. Attention: To avoid unnecessary trouble and save your time, please make sure your part number and vehicle type before you place the order. We are committed to providing you with premium-quality products and professional services. Your feedback is vital to the growth of our business. Should you be satisfied with our products, we would greatly appreciate your positive review. We guarantee a response within 24 hours and will make every effort to resolve any issues promptly. Thank you for your understanding. Reliable and durable product quality. Outstanding R&D capabilities. Professional technical team and responsible sales department. Efficient logistics solutions. We pledge to respond within 24 hours and dedicate our utmost efforts to resolve all matters for you. WHERE PRECISION MEETS TOMORROW!