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Hammerhead Reverse Assembly for 150cc - 6.000.157 replaces 6.000.019, 639-0013

Availability: In stock


Quick Overview

6.000.157, External Reverse Assembly for 150cc


Genunie, OEM, Hammerhead 150cc Reverse Assembly for GY6 150cc Vehicles with an External Reverse Gearbox.  This 150cc External Reverse Assembly (slip over yoke) is the reverse assembly that is used on all Hammerhead go-karts with ONLY Forward and Reverse.  Will not work on 150cc vehicles that have a Forward, Neutral, and Reverse gearing setup.

Gearbox details:

  • 16 tooth sprocket
  • Sprocket OD: 87.4mm [3.43"]
  • Gear shaft ID: 20mm [.787"]
  • Opposite side ID: 16.8mm [.662"]
  • OD of gearbox: 130mm [5.14"]
  • (2) studs 91mm [3.58"] apart center-to-center
  • (2) threaded holes in side of case

Guarnteed to fit on these models below:

  • 2009-2011 GTS 150 
  • GT150
  • SS150
  • Standard Hammerhead (UM150IIR)
  • Junior Hammerhead (UM125IIR)
  • UM150
  • LM150
  • Carter Talon series with external reverse

If your buggy has separate F / N / R (Forward, Neutral, and Reverse) gears, the vehicle has an internal reverse, and this reverse assy will not work with those vehicles.

This reverse gearbox assembly was used in a variety of Hammerhead vehicles, including 1st generation GTS models, all GT150 models, SS150, Standard 150, JR 150, and various other non-Hammerhead brands such as Carter Bros, Kinroad, SUNL, Massimo, Roketa, and more.

Hammerhead Part #6.000.019 is not available anymore from Hammerhead, but this product will replace 6.000.019 when used with the bracket, part # 8.020.173 (sold separately) to retrofit.

Hammerhead Part #s 8.010.124,  8.010.125, 9.030.007 are all included with this assembly and are NOT sold separately from Hammerhead or other vendors.

This product is the same as the following vehicle specific part #s (can also apply to vehicles not listed here):

Hammerhead part # 6.000.157
Old TJ Power Sports part # 6.000.019
Carter Brothers part # 639-0013

Additional Information

Video No