Boundary Engineering 18-20 F-150 5.0L Billet Oil Pump Gears and Crankshaft Sprocket Combo

Boundary oil pump gears are cut from special heat treated chromoly billets with a highly tempered core to resist destruction with large debris ingestion, and have a surface treatment which provides a long lasting harder exterior. We guarantee our products regardless of if you or the last guy bought them.. We are an oil pump specialist, 100% manufactured in house, in the USA, using USA made materials to our exacting standards. Oil Pump Gears Include Inner and Outer Chromoly Gear Set Industry leading Mirror finished (1µin RA) for ultimate efficiency CNC Ground flat to within .0001 inch Every gear double inspected by a quality inspector and CMM Serial numbered inner and outer Each set blue printed with paperwork, and sealed These sprockets are cut from American 4340 chromoly steel billets, hardened to Rockwell C scale hardness of 50-55. These come with an anti-burst ring that make the part 50% stronger then the stock design. Great materials and design have created the strongest crank sprocket on the market at a price that keeps you racing! Combo Includes: Oil Pump Gears Crankshaft Sprocket