This 40 series torque converter driven clutch is a symmetrical inline small engine clutch. It works with 8 – 18 HP engines. The 40 series is heavily used in three wheelers, ATV’s, LTV’s, go karts, and other transportation vehicles. Commercial uses include oil well pumps, tractors, tillers, lawnmowers, construction, and industrial equipment.
This torque converter fits 8 – 18 hp engines with the following jack shafts and 3/16″ keyway
Clutch, 7-1/2″ dia, 7/8″ Bore, 3/16″ key – Replaces 209139, 209139A
Engine compatability: Compatible on most engines with horizontal shaft.
Robin
Honda (and clones)
Kohler
Clinton
Lifan

The unit replaces:
: 209139, 209139A

Specifications:
Driven clutch bore: 7/8″
Key Way: 3/16″
Outside Diameter: 7-1/2″
Belt: Symmetrical type
Engagement range: 1600 – 3300 RPM