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MotorcycleEngine & PerformanceCams & ValvetrainKoso North America Koso 4V Head Kits for Honda Grom/Monkey4V head kit only
4V head kit only
Cams & Valvetrain

4V head kit only

$1,182.95

NOTE: For use with PART #0903-1124 only. Also requires PART #s 1010-1865, 1022-0154, 1050-0344, 1050-0345, 1022-0227, 1021-0013, 0932-0167 and 2103-0362.

  • Ideal engine part to complete Koso's big bore kit
  • Features a forged piston, stainless steel 24 mm intake valves and 20 mm exhaust valves
  • Provides more power and torque
  • Unique four-valve design increases air flow and performance
  • Proper exhaust system must be used to prevent re-flow pressure and heat.
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  • Vendor:

    Koso North America

  • SKU:

    8837

  • Model #:

    MC623000

  • Weight:

    6.9 lb

  • Available:

    In Stock

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Search Compatible Vehicles

Search by year, make, or model to verify compatibility:

Showing 13 of 13 compatible vehicles
Vehicle Fitment
2016 Honda Grom 125
2014 Honda Grom 125
2020 Honda Grom 125 ABS
2019 Honda Grom 125 ABS
2018 Honda Grom 125 ABS
2021 Honda Monkey ABS
2020 Honda Monkey ABS
2019 Honda Monkey ABS
2018 Honda MSX125 Grom SF
2017 Honda MSX125 Grom SF
2021 Honda Z125M Monkey
2020 Honda Z125M Monkey
2019 Honda Z125M Monkey
Related Products
(image for) 4V head kit only
4V head kit only
MC623000
$1,182.95
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