GUARANTEED FIT FOR YOUR COLEMAN AT200 ATV. Engine comes with a one year warranty--see details.  The BK200 comes stock with a 170cc engine.  You can replace with a 150cc engine if you are not concerned with power.  You also have the option of replacing with our 175cc GY6 engine that we build in our facility in the USA which has more power than your stock engine or 184cc or 232cc GY6 Engine.  The 150cc, 175cc, 184cc engines are a guaranteed direct fit for your vehicle and everything bolts up identical to your original stock engine including the shifting controls. The 232cc engines is a bolt on engine with the kit below.

GET A MORE POWERFUL GY6 BOLT-IN
ENGINE FOR YOUR BUGGY--SEE BELOW

ADD A UNI-FILTER TO YOUR ORDER AND GET A ONE YEAR WARRANTY.

YOU HAVE FIVE ENGINE OPTIONS 

• Engine 1: 150cc Standard stock GY6 Engine with Internal Reverse with stock transmission--GUARANTEED DIRECT FIT.  
  
  
• Engine 2: 175cc GY6 Engine with Internal Reverse and stock transmission--GUARANTEED DIRECT FIT.  This engine comes with the 62mm big bore cylinder and piston kit pictured below installed in a bored out case.  We strongly recommend the BDX performance transmission for performance engines--Click here to see why. 
  
  
• Engine 3: 184cc GY6 Engine with Internal Reverse and stock transmission--GUARANTEED BOLT-ON FIT.   This engine comes with the 62mm big bore cylinder and piston kit pictured below installed in a bored out case and a 3.0mm high performance stroker crank.  Recommend performance transmission.  
  
  
• Engine 4: 232cc GY6 Engine with internal reverse and stock transmission -- GUARANTEED BOLT-ON FIT with kit.  This engine comes with a 67mm big bore cylinder and piston and an 8.0mm high performance stroker crank. This is a slightly different GY6 engine than came on your go-kart thus a bolt-on compatibility kit is required.  Call before ordering.
  

YOU HAVE SIX POWER PERFORMANCE OPTIONS

• Option 1: American made high performance Uni-Filter air filter ensures clean air to your engine and long life.  See why a NEW Uni-Filter is MANDATORY for ALL new engines and purchase at this link.   Your one year new engine warranty applies only if a new uni-filter is purchased with this engine.  See Details

• Option 4: 11 Pole Stator, rectifier and harness adapter.  With this option you get more power to run your lights and other accessories.  If you get this option it will be installed and tested in your engine--Click Here.  The engine comes stock with an 8 pole stator.  
  
  
• Option 5: Performance Exhaust:  You can get the BDX performance exhaust for any of the engines above for an estimated 10% to 15% increase in raw power--see details here.

• Option 6: PowerPak:  The PowerPak includes all of the other options above, with the exception of the 11 pole stator.  Components will be installed into your engine (except A12 CS in stock engines).  It also includes additional roller weights and a 2000 RPM spring, performance CDI and coil.  Click here to see.