Brake Master Cylinder with Resevior and Cap. Fits American Sportworks 3170 Hornet, 3170 Dragonfly, 3171 Black Widow, 4170 Vector Go Karts. Fits Hammerhead Model 80T, Trail Master Mid XRS, XRX and others. It has one port for the rear brake caliper. Overall length of the base is 4-1/4", the mounting holes are spaced 1-3/4". Replaces 6.000.305. American Sportworks 14744.

  
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