one Snap Ring

The Pro-Line 6359-02 O-Ring Replacement Kit: PowerStroke 635900/635901 is a genuine Pro-Line replacement part for R/C vehicles

giving it a distinct marker light for use on your model railroad layout

and other models using a 25T servo

Delrin lower shaft seals

Losi los46001 Rear Wheel Set Black Promoto-MX Aircraft Radios one Snap RingLosi los46001 Rear Wheel Set Black Promoto MX The Losi los46001 Rear Wheel Set is a direct replacement for the Promoto MX, finished in black to match the stock look. Wheels see constant stress during jumps and landings, so keeping a spare set on hand helps you get back to riding quickly. This set is an easy way to restore your Promoto MX after a hard crash or heavy use. Genuine Losi part, los46001 Rear wheel set Black finish Designed for the Promoto MX