Engines | Mounts, , CAT C15, Truck Engine, (GOOD USED) CATERPILLAR C15 ENGINE JAKE BRAKES FOR SALE, MODEL 340D JAKE BRAKES FOR SALE, PART# 031304 HSG (12 VDC) SERIAL# 340D 154039, 154042, 154034, STOCK #2599 PARTS ARE TEST & INSPECTED! WARRANTY! SHIPS OUT SAME DAY! NEXT DAY SHIPPING AVAILABLE | CA TRUCK PARTS CALL (305)688-1101