150cc Engine Parts

There are two 150cc piston sizes, 57mm and 57.4. Your piston, rings, and cylinder must all match one size (as a set) in order to fit properly. The 57mm bore is known to be used in go karts with Howhit engines. 
Known 57mm engines: Yerf Dog GX150 (w/ HOWHIT), Baja Dune 150, Crossfire 150.
Known 57.4mm engines: Yerf Dog CUV.
If your kart is not listed here, please check the bore size of your cylinder with the original manufacturer. 
Howhit bore: 57.0mm (147.5 CC)
Standard bore: 57.4mm (149.8 CC)
If your piston size is 57mm, the larger 57.4 components can be used as a set (piston, rings, & cylinder). This will bump the engine displacement up 2.3CC's. 

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150cc Engine Type
150cc Engine Parts
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Engine Collar for GY6 150cc
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$1.95
(04992) | In Stock
Kick Axle Bushing (18mm OD x 14mm ID) to a GY6 150cc
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$6.95
(05872) | In Stock
Piston Pin for GY6, 150cc Engine
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$3.74  $1.50
(05005) | In Stock
Engine Reduction Gear or Idle Gear for 150cc GY6
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$22.95
(05939) | In Stock
Micro Switch On/Off
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$4.80
(8300000A) | In Stock
Chain Tensioner Assembly for Yerf-Dog CUVs
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$100.49
(05101) | In Stock
Hex Flange Bolt - Yerf-Dog Chain Tensioner Assembly
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$9.95
(05109) | In Stock
Starting Clutch Assembly for 150cc GY6 Engine
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$49.95
(05122) | In Stock
5 Wire Key Ignition for Go Kart w/ 2 Keys
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$29.95
(04770) | In Stock
Main Wire (cowl) for Yerf-Dog CUVs
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$27.23
(05137) | In Stock
Engine Wiring Harness for Yerf-Dog CUVs
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$52.58
(05138) | In Stock
Fuel Pump for GY6 150cc Engines
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$49.95
(05040) | In Stock
Bracket - Yerf-Dog Chain Tensioner Assembly
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$24.90
(05102) | In Stock
Shaft for Plastic Roller - Yerf-Dog Chain Tensioner Assembly
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$9.95
(05103) | In Stock
1/2
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$0.65
(05098) | In Stock
E Ring- Yerf-Dog Chain Tensioner Assembly
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$1.10
(05106) | In Stock
Nylon Insert Lock Nut - M12
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$1.37
(05107) | In Stock
Spring for Chain Tensioner Assembly
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$9.95
(05108) | In Stock
Air Filter Housing Assembly (with Air Filter)
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$99.55  $79.55
(05007_05008) | In Stock
Radiator
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$12.95
(04860) | In Stock
Engine Fix Bracket Plate
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$32.86
(K04964) | In Stock
Left Crankcase for a GY6 150cc Engine
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$232.80  $120.00
(04976) | In Stock
Mission Cover for 19 Spline Final Shaft
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$65.95
(04915) | In Stock
Right Crankcase Cover
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$49.00
(04842) | In Stock
Left Crankcase Cover for 150cc GY6 Engine (Short Type)
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$49.00  $19.95
(04873) | In Stock
Plastic Oil Catch Cover
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$4.95
(05013) | In Stock
Camshaft Comp
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$49.95
(04828) | In Stock
Air Duct Cleaner Case
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$4.95
(05018) | In Stock
Spring Collar
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$4.95
(04911) | In Stock
Plastic Duct Air Cleaner In
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$6.95
(05017) | In Stock
Left Crankcase Cover Gasket
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$7.44
(04874) | In Stock
Cylinder Head Gasket
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$9.36
(04818) | In Stock
Oil Pump Chain
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$22.08  $4.95
(04870) | In Stock
Air Filter for GY6 150cc Engine
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$29.90
(05008) | In Stock
Driven Face Assembly for Yerf-Dog CUVs
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$146.95
(04891) | In Stock
Starter Wheel for Clutch on GY6 150cc Engine
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$12.95
(05134) | In Stock
Starting Clutch Flange
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$24.24
(05124) | In Stock
Movable Drive Face Assembly (Driver) for Yerf-Dog CUVs
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$78.37
(04879) | In Stock
Drive Face / Fan
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$23.51  $13.95
(04880) | In Stock
Boss Drive Face
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$11.21
(04881) | In Stock
Primary Sliding Slot Wheel
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Sale
$32.59  $14.95
(04882) | In Stock
Roller Comp Weight 13g
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$2.58
(04883) | In Stock
Ramp Plate
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$9.36
(04884) | In Stock
Side Piece for Drive Face Assembly
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$1.52
(04885) | In Stock
Bushing - 28mm OD x 24 mm ID
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$3.48
(04886) | In Stock
Kick Drive Gear - 20T
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$15.32
(04888) | In Stock
Ignition Coil for GY6, 150cc Engine for CUV
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$27.23
(05140) | In Stock
Transmission Fork
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$8.18
(04941) | In Stock
Tube Bracket
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$2.50
(04979) | In Stock
Clutch Roller
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$5.59
(05125) | In Stock
Clutch Spring for Starting Clutch Assembly
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$1.90
(05126) | In Stock
Breather Joint
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$2.95
(04969) | In Stock
Exhaust Valve Guide
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$5.59  $1.00
(04806) | In Stock
Cam Shaft Holder / Rocker Arm Assembly
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$65.50  $49.95
(04820) | In Stock
Cam Transmission Gear
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$11.58
(05000) | In Stock
Timing Gear for 150cc GY6 engine
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$8.95
(05001) | In Stock
Clutch Cover for the Starting Clutch Assembly
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$38.36  $25.95
(05123) | In Stock
M6x22 Pivot to the Cam / Timing Chain Tensioner
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$4.00
(04835) | In Stock
Intake Valve Spring
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$2.95
(04812) | In Stock
Valve Spring Retainer for 150cc GY6 engine
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$2.95
(04813) | In Stock
Oil Seal (34x41x4) for Driven Face Assembly
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$0.89
(04904) | In Stock
Guide Pin
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$1.90
(04906) | In Stock
Transmission Fix Link Assembly
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$4.75
(04970) | In Stock
Ignition CDI (DC) for Yerf-Dog CUVs
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$85.00
(05141) | In Stock
Final Shaft Assembly for Yerf-Dog Utility Vehicles
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$129.95
(04919) | In Stock
Plastic Roller - Yerf-Dog Chain Tensioner Assembly
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$14.95
(05105) | In Stock
Retaining Ring
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$6.95
(04934B) | In Stock
Inline Fuel Filter for GY6, 150cc Engine
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$9.95
(05044) | In Stock
Piston Rings Set for Yerf-Dog 150cc CUVs
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$39.95
(05003) | In Stock
Mission Cover  for 6 Spline Final Shaft
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$81.40
(04915A) | In Stock
Mission Cover Gasket
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$8.95
(04916) | In Stock
Final Shaft - 19 Spline for Yerf-Dog Utility Vehicles
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$55.00
(04920) | In Stock
Oil Seal - 19 Spline
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$8.95
(04931) | In Stock
Oil Seal - 6 spline
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$8.95
(04931A) | In Stock
Final Shaft 12T #520 Sprocket - 19 Spline
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$34.95
(04934) | In Stock
Final Shaft 12T #520 Sprocket - 6 spline
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$26.95
(04934A) | Out of Stock
Piston for 150cc GY6 on Yerf-Dog CUV
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$29.95
(05004) | In Stock
Hour Meter / Gauge
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Sale
$23.28  $17.95
(04771) | In Stock
Oil Dipstick for 150cc GY6 Engine
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$4.95
(04857) | In Stock
Headlight Switch
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Sale
$20.54  $14.95
(04769) | In Stock
2-Wire Ignition Switch with Keys
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$19.95
(529.006) | In Stock
Intake Manifold
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$18.95
(04795) | In Stock
Right Hose Inlet
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$75.00
(04863) | In Stock
Cylinder for GY6 150cc (Off Returned Kart)
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$35.95
(04839) | In Stock
Clutch Weight Set for the Driven Face Assembly
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Sale
$32.59  $27.95
(04901) | In Stock
Compression Spring
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$8.95
(04910) | In Stock
Clutch Cover for Driven Face Assembly
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Sale
$32.01  $16.95
(04913) | In Stock
Rubber Cap for Fan Cover Assembly
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$1.95
(04791) | In Stock
Rubber Seal for the Lower Shroud on Yerf-Dog
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$3.95
(04783) | In Stock
Rubber Seal for the Upper Shroud on Yerf-Dog
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$3.95
(04781) | In Stock
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