Features: This product is applicable to 5.9l 12 valve and 24 valve Cummins engines from 1989 to 2007. Large pressurization, high pressure and high speed Operate the plant fan at high pressurization, high pressure and high speed without purging the OEM refrigeration plug. These will be suitable for the 1989-2007 5.9-litre 12 valve and 24 valve Cummins engines. All our billet freezing plugs have high-quality fluororubber O-rings and stainless steel bolts. To install the Michigan motor sports freeze plug: remove the freeze plug on the factory side; Make sure that nothing in the hole will cut the O-ring, screw the bolt into the plug retainer 2 for a full turn, and then install the plug into the cylinder block. Tighten to 20. The freezing plug can only be pressed by hand. Specifications: Qty:1/2/3pcs optional Manufacturer Part Number:45400-03 Packing list: 1*Cummins Billet