40 Series Parts

Comet Bronze Bushing

Bronze bushing for the Comet 40 Series Driver.

44 Series Magnum Driver 3/4" Bore, Comet

Made in the USA from Comet.  44 Series Magnum Torque Converter Driver with a 3/4" Bore.  For 8-18HP Engines. 3/4" Bore 5000 Max RPM For 7/8" Symmetrical Belts

44 Series Magnum Driver 1" Bore, Comet

Made in the USA from Comet.  44 Series Magnum Torque Converter Driver with a 1" Bore.  For 8-18HP Engines. 1" Bore 5000 Max RPM For 7/8" Symmetrical Belts

40 Series Driven 5/8" Bore, Comet

40 Series Driven Pulley with a 5/8" Bore from Comet. 40 Series Driven, Made in the USA by Comet 5/8" center bore 7 5/8" OD driven pulley 3/16" Key Way

40 Series Driven 3/4" Bore, Comet

40 Series Driven Pulley, made in the USA by Comet. 7 5/8" diameter with a 3/4" center bore. Used with 40 series 7/8" wide belt.   Mounts inboard.  3/16" Keyway

40 Series Comet Driven Spring Red

40 Series Driven Spring, Red (Stock); mainly used for inboard mounted drive pulleys.

Bellville Washer

Bellville washer for the 20/30/40 Series Drivers. 7/16" center hole, 1 1/2" dia.

40 Series Driver Compression Spring

40 Series Driver compression spring.  

2,600 RPM Stall Kit, 40 Series

3 red springs and 3 medium weight cam rollers used to stall your engagement of the driver from 1,600 RPM's to 2,600 RPM's. DOES NOT WORK WITH MAGNUM 44C SERIES DRIVER

Medium Weight Cam Rollers for 40 Series Driver

Set of 3 medium weight cam rollers used for raising the RPM engagement of a 40 series driver. With the stock springs, your RPM engagement will be 2,200  RPM's. Pair these with the Red Springs (KD203040A) for a 2,600 RPM engagement.

Red Upgraded Spring For 40 Series Driver

Set of 3 red upgraded springs for the 40 series driver. Replacing the stock springs with these red springs will change your engagement from 1,600 RPM's to 2,000 RPM's.  If you pair these with the medium rollers (KD2036019A) your clutch engagement...

40 Series Cover

Custom made to fit our Series 40 Torque Converter Bolt on Kit. Uses (5) 1/4" x 3/4" bolt

40 Series Driver 1" Bore, Comet

40 series driver pulley 1" bore uses 7/8" wide belt.    USA made Comet brand 1" center bore Rated 8hp-16hp engines

Yellow Comet Springs

Package of 3 Yellow Springs for the Comet 40 Series Drive Clutch.

40 Series TAV Combo Drive and Driven, Aftermarket

This is a quality aftermarket 40 series driver and driven pulleys. Driver has a 1" bore with 1/4" key. Driven is 7 5/8" diameter with 5/8, or 3/4" bore and 3/16" key way.Refer to the Comet 40 series belt chart to choose the correct belt. https://www...

40 Series Driven 5/8" Bore, Aftermarket

Quality aftermarket 40 series driven not made by Comet. 5/8" center bore 7 5/8" OD driven pulley 3/16" Key Way

40 Series Driven 3/4" Bore, Aftermarket

40 Series Driven Pulley, 7 5/8" diameter with a 3/4" center bore. Used with 40 series 7/8" wide belt.   Mounts inboard. This is a quality aftermarket driven pulley not made by Comet. 3/16" Keyway

Wear Buttons for 40 Series

Buttons that fit a current 40 series driver, comes in pack of 3.

40 Series Reverse Wound Spring, Yellow

Driven spring used with 40 series driven pulley. Commonly used on Manco go karts-  Outboard   

40 Series Driver 1" Bore, Aftermarket

40 series driver pulley 1" bore uses 7/8" wide belt. High quality aftermarket unit not made by Comet.