GENUINE Kawasaki OEM CYLINDER HEAD BOLT SET for KX500 and some KX250 Motorcycles. Part number is 92004-1009. Use this part number to verify fitment to your application. This sale is for NINE (9) stud bolts. These same studs are used or this and other applications on many other Kawasaki motorcycles and ATV's. Stud Size is 8mm X 50mm long (35mm EXPOSED LENGTH). The part # is 92004-1009. Your order may or may NOT come in OEM packaging as I buy these in bulk and it just depends on how the distributor ships them to me. Direct fitment for the following: KX500 (ALL) 1989 thru 2004 KX250-F1/G1 1988-1989 ONLY Set of 4 new Genuine Kawasaki Cylinder Head Studs. If you need less than 9, check my other listings for different quantities or contact me for a custom listing. These are used on a lot of other Kawasaki models including: 1987-1991 KX80 Big Wheel, 1985 GPz 750, 1989-1994 KDX200, 1988-1989 KX125, 1986-1991 KX80, & 2017 Ninja 300 Some models may only use two while some use as many as 9 depending on the application. Feel free to ask any questions before buying.