Hot Racing Motor Heat Sink Esc Cooling Fan 30x30mm Made by Hot Racing; Hot Racing is a United States based company; parts are sourced from Chinese producers All Hot Racing upgrade parts are direct replacements for stock components; additional parts are not required Hot Racing part number MH3030F; UPC 083745663310 This item works with: Associated B44.x, RC-10 B4.x, RC-10 original aluminum chassis, RC-10 T4.x, RC-18T2, RC-8e Truck electric, Reflex 1:18, RC-18, RC18R, RC18B, RC18T, SC-10 2WD, SC-10 4x4, SC-18, TC-3 Electric Sedan; Axial Wraith 4WD Rock Racer RTR, XR10 Crawler; E-Flite UMX Extra 300 3D; HPI Electric Blitz, Brama 10B, Cup Racer 1M Kit, Cyber 10B, E Firestorm, E10, Savage Flux, Sprint 2, Sprint 2 Flux, Wheely King 1/12; Kawada M300; Kyosho Half Eight Mini Inferno 777, Inferno VE