The CQ Premium Disc Brake Caliper 18-8000 is a fixed, two-piston replacement for heavy-duty trucks and buses, including Blue Bird, Freightliner, GMC, International, and more. Cast iron construction with phenolic pistons, EPDM seals, and dust boots ensures reliable performance. Complete installation hardware, bleeder screws, banjo bolts, and crush washers are included. OE-style zinc-coating resists corrosion and maintains durability. Fitment / Compatible Vehicles: Blue Bird: TC2000, TC2200-2509, TC2510-2700, TC2701-2809 (1989–2004) Chevrolet: B60, B6P042 (1980–1991) Freightliner: FL106, FL10642S, FL10642ST, FL10644S, FL10662ST, FL10664S, FL10664ST, FL10666S (1994–2003) GMC: B6000, C6D042 (1980–1991, 1985–1986) International: 1452SC, 1652SC, 1652UPS (1987–1997) Isuzu: FSR, FTR, FVR (1996–2002) Mack: CS200P, CS250P, CS300P, CS300T, MS200P (1986–1993) Sterling Truck: Acterra 5500 M5500 (2001–2005)