This is the updated stock replacement fuel tank for the Traxxas T-Maxx The fuel tank holds the fuel and screws directly to the chassis This tank has been updated and NO LONGER has a PRIMER BUTTON FEATURES: Clear, nylon construction Black fuel tank cap (spring loaded) INCLUDES: One fuel tank One Pre-installed lid with spring One Pre-installed pressure tap REQUIRES: Assembly on to Traxxas T-Maxx SPECS: Length: 68.4mm (2.70") Width: 62.3mm (2.46") Capacity: 125cc Height (including chassis mounts, to top of lid): 84mm (3.30") Center to Center Distance between mounting holes: 43.3mm/38.2mm