Duramax LML ECM View cart “Caterpillar 40-pin” has been added to your cart. $5.00 No damaged plugs 12641369 Duramax LML ECM quantity Sell us this item Category: ECM Related products Detroit Diesel DDEC VI ECM $35.00 Sell us this item Detroit Diesel DDEC ECM IV $110.00 Sell us this item Cummins 6.7L ECM Dual Plug $100.00 Sell us this item Caterpillar 120 Pin ECM $10.00 Sell us this item