My Cart:

0 item(s) - $0.00
You have no items in your shopping cart.


More Views

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

Availability: Out of 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.

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

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.

Works with the following Hammerhead models:

  • 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 included bracket kit 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