10.9 Class (metric equivalent to Grade 8) hardened yellow zinc plated serpentine / accessory drive belt tensioner bolt replacement for Mopar 34202480 and zinc plated alloy steel adjustment collar replacement for Mopar 53002915. Fits: 1991-1995 Wrangler YJ (2.5L, 4.0L), 1987-1996 Cherokee XJ (2.1L Diesel, 2.5L Diesel, 2.5L, 4.0L, 4.2L), 1993-1996 Grand Cherokee ZJ (4.0L, 5.2L), 1987-1992 Comanche MJ (2.1L Diesel, 2.5L, 4.0L), 1987-1990 Wagoneer XJ (2.1L Diesel, 2.5L Diesel, 2.5L, 4.0L, 4.2L), 1993 only Grand Wagoneer ZJ (4.0L, 5.2L). These 10.9 Class bolts are stronger than the OEM bolt which was 8.8 Class and is notorious for breaking. This bolt is also known as "power steering pump tensioner bolt" and "alternator tensioner bolt". NOTE: If you have a 1996 XJ or ZJ the bolt was changed during that model year. Early 1996 models use this bolt, later 1996 models use 6503198. Verify which you need. Also, most 1995 YJ's use this bolt, however some late year 1995 YJ's may use 6503198. Sold by a small business in the US.