The CH-4 Airboat Belted Reduction Drive Unit is designed to handle high horsepower and high torque engines. CH-4 Drive Units are also available with the Counter Rotating system. CH-4 models are primarily used on 15’ and larger airboats. The CH-4 models have a new Spline Drive Coupling System.
•The CH-4 works well with both Narrow and Super Wide Propeller Systems.
•The Drive Belts for the CH-4 models are a Goodyear Falcon with the 14MM tooth profile and 5” wide allowing for a greater cross sectional area
CH-4 Drive units are designed for over 600hp engines. Available ratios are : 2.52:1 , 2.68:1