SKU: 61566245150

Reverse Gear Box for GY6 150cc Go-Karts with External Reverse

Sale price$94.05 Regular price$104.50
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Description

Reverse Gear Box for GY6 150cc Go-Karts with External ReverseReverse Assembly for GY6 150cc Vehicles with an External Reverse Gearbox. Gearbox details: 16 tooth sprocket Sprocket OD: 87. 4mm (3. 43 in) Gear shaft ID: 20mm (0. 787 in) Opposite side ID: 16. 8mm (0. 662 in) OD of gearbox: 130mm (5. 14 in) (2) studs 91mm (3. 58 in) apart center to center (2) threaded holes in side of case This 150cc external reverse gearbox assembly is the reverse assembly unit used on all Hammerhead go karts with ONLY Forward and

Reverse Assembly for GY6 150cc Vehicles with an External Reverse Gearbox.

Gearbox details:

  • 16 tooth sprocket
  • Sprocket OD: 87.4mm (3.43 in)
  • Gear shaft ID: 20mm (0.787 in)
  • Opposite side ID: 16.8mm (0.662 in)
  • OD of gearbox: 130mm (5.14 in)
  • (2) studs 91mm (3.58 in) apart center-to-center
  • (2) threaded holes in side of case

This 150cc external reverse gearbox assembly is the reverse assembly unit 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:

  • GT150
  • SS150
  • Standard Hammerhead
  • Junior Hammerhead
  • UM150
  • LM150. 
  • Carter Talon series with external reverse
  • 6.000.157 

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

See pictures for closer details on the description. 

Shipping details:

Do you need your gear box fast?  If you order before 3:00 pm CST, Monday thru Friday, your order goes out the same day.  Buy now!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61566245150

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Michael
Fort Morgan, US
★★★★★ 4
Size up for a little bit of heel slip
Size: 9 Women/8 Men, Color: Black Nappa
It’s still a doc and the air sole with bottom out kinda quick but it’s comfortable at first. Size up for a little bit of heel slip so you don’t get heel blisters but not too big of a size jump. Think of it kind of like a cowboy boot size
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Reviewed in the United States on December 30, 2025
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Chris and Dawn Grimes
Los Angeles, US
★★★★★ 5
Comfy, don't require "breaking in"
Size: 8 Women/7 Men, Color: Dark Brown Valor Wp
Great fit, and both my pairs of Chelsea boots required way less breaking in than other Dr. Martens I own. Hold up to frequent use and I love the fleece lining for colder days.
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Reviewed in the United States on December 29, 2025
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Jason D. Covell
Omaha, US
★★★★★ 5
Excellent boots
Size: 11 Women/10 Men, Color: Black Nappa
Excellent boots
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Reviewed in the United States on May 26, 2026
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Juan A. Flores
Draper, US
★★★★★ 5
Great set of boots
Size: 11 Women/10 Men, Color: Black Nappa
Overall great product, I’m very happy with the purchase.
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Reviewed in the United States on April 18, 2026
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Felicia Marie
Pawtucket, US
★★★★★ 5
Durable
Style: Bi-fold
My man loves it. He works construction and it has held up well so far. Carhartt does good work. Looks exactly like the picture, well made.
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Reviewed in the United States on April 19, 2026

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