Koso North America

Koso DM623K10 - Rubber Intake

Combining throttle body with intake manifold will allow a better air/fuel mixture for quicker throttle response Control the amount of air flowing to the engine's combustion chamber

Koso DM623000 - Connecting Air Tube

Combining throttle body with intake manifold will allow a better air/fuel mixture for quicker throttle response Control the amount of air flowing to the engine's combustion chamber

Koso BA004068 - Wideband Air/Fuel Ratio Meter

Highly visible, backlit digital display Allows more precise tuning Programmable warning alerts rider of too lean or too rich ratio Displays ratio between 10.0-24.0 Includes Bosch O? sensor,...

Koso BS000010 - Throttle Body Screw - Brass

Replace the stock air screw on your throttle body with this high precision brass model It is the perfect replacement for the plastic version from the manufacturer

Koso DB008160 - High Flow Fuel Injector - Grom

Increases fuel in the combustion chamber 160cc injector for Koso intake manifold

Koso DY623013 - Throttle Body - Grom - 34mm

Combining throttle body with intake manifold will allow a better air/fuel mixture for quicker throttle response Control the amount of air flowing to the engine's combustion chamber

Koso DP623001 - Intake Manifold - Grom

Combining throttle body with intake manifold will allow a better air/fuel mixture for quicker throttle response Control the amount of air flowing to the engine's combustion chamber

Koso DB623000 - Injector Adapter Kit - Grom

Adapts fuel injectors to work with Koso intake manifold

Koso DK633000 - Filter - Grom Hurricane

Multi air filter intake increases airflow, improves filtering efficiency and raises the engine's output performance High-quality foam filter is easy to assemble and disassemble Suitable for...

Koso DK623000 - Air Filter - Grom Race

Multi air filter intake increases airflow, improves filtering efficiency and raises the engine's output performance High-quality foam filter is easy to assemble and disassemble Suitable for...

Koso MC623000 - Valve Head Kit - Grom

Ideal engine part to complete Koso's big bore kit Unique four-valve design increases air flow and performance Provides more power and torque Features a forged piston, stainless steel 24 mm intake...

Koso MB623003 - Valve Head Kit - Big Bore - Grom

Ideal engine part to complete Koso's big bore kit Unique four-valve design increases air flow and performance Provides more power and torque Features a forged piston, stainless steel 24 mm intake...

Koso DP623K000E - Intake Manifold Gasket - Grom

Throttle body manifold gasket for use with OE or aftermarket manifolds

Koso MA623100 - Big Bore Gasket Kit

Replacement gasket kit for Koso 170CC Big Bore Kit

Koso NF623000 - Hi Flow Oil Pump - Grom

Increases the oil flow by 40%, helping to prevent engine failure Keeps the engine lubricated to optimize performance Recommended for bikes with upgraded engines using the Koso North America 170cc...

Koso MO623100 - Banjo Bolt Kit - Big Bore - Grom

Optional camshaft kit can be used with stock engine, but delivers improved results when used with 170cc Big Bore kit Banjo bolt kit designed for 170cc big bore kit Includes ceramic coated...

Koso MU623000 - Cam Chain Tensioner

Arm made of 6061 aluminum, wheel made of structured steel Long lasting OEM replacement

Koso MM623002 - Camshaft - Big Bore Kit

Optional camshaft kit can be used with stock engine, but delivers improved results when used with 170cc Big Bore kit

Koso MD623000 - Piston - Big Bore - Grom

Compression ratio of 11.5 to 1

Koso MB623002 - Big Bore Cylinder Kit

Includes ceramic coated cylinder, 61 mm forged piston, rings, pin, gasket kit and banjo bolts Compression ratio of 11.5 to 1 Optional camshaft kit can be used with stock engine, but delivers...

Koso BG302010 - Oil Adapter - M20X1.0X15

Aluminum washer included Sensor not included

Koso BG301615 - Oil Adapter - M16X1.5X15

Aluminum washer included Sensor not included

Koso BG281415 - Oil Adapter - M14X1.5X15

Aluminum washer included Sensor not included

Koso BG241412 - Oil Adapter - M14X1.25X15

Aluminum washer included Sensor not included