+3 Fuel Rail Sensor Wiring Harness Repair Pigtail Connector for 6.6l 05-10 Duramax KB-6.6l-LLY-LMM-FRSP $10.95 In stock Quantity: 1 Add to Bag Product Details Fuel rail sensor wiring harness repair pigtail with connector. Fits: 2004.5-2010 6.6l LLY LBZ LMM Duramax engines found in Chevy/GMC 2500/3500/4500 & 5500 applications. Save this product for later Favorite