Features:3.Precision CNC machined aluminum alloy motor heat sink has better heat dissipation effect.4.High-quality aluminum alloy motor base is strong and .5.The radiator and base are anodized for a refined appearance.6.Easy to install and disassemble, you can directly replace the damaged parts for higher strength, which can improve the comprehensive performance of the rc car.Applicable brands:Replacement for MNMODEL,Replacement for WPL,Replacement for Henglong,Replacement for JJRC.Applicable models:Replacement for WPL RC 1:16 full series,Replacement for MNMODEL D90 D91 D96 MN98 MN99S,Replacement for JJRC,Replacement for Henglong, etc.Note: The RC car motor only supports 2s (7.4v) voltage, and the gearbox must match the metal drive shaft or Replacement for WPL original RC drive shaft, not other drive shafts.Specifications:Scale: 1:16Material: Aluminum alloyColor: SilverBrand name: BQLZRSize:Length: 86.5mm/3.41inchWidth: 52mm/2.05inchRC motor diameter: 25mm/0.98inchShaft diameter: 3mm/0.12inchWeight: 175 gPackage include:1 x RC Car Speed Change Gear Box1 x Blue Heat Sink4 x Screw1 x Pin Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.