Comet Drive Belt Charts

Comet Torque Converter Belts

Comet Belt System 5/8 and 3/4 Top Width Belts
Series, Width & Part Numbers				Center Distance		Size
TC88 Symmetric	CAT99 Asymmetric	20 Series Symmetric	30 Series Asymmetric	6" Driven Pulley	7" Driven Pulley	OC Length
200419A 883-70	200393A 993-70	203578A 884-70	203589A 994-70	under 7"	NO FIT	27-1/32
200420A 883-75	200394A 993-75	203579A 884-75	203590A 994-75	7-1/8 to 7-3/16	6-1/4 to 6-5/16	28-21/64
200421A 883-80	200395A 993-80	203580A 884-80	203591A 994-80	7-9/16 to 7-5/8	6-13/16 to 6-7/8	29-9/32
200422A 883-85	200396A 993-85	203581A 884-85	203592A 994-85	8-3/16 to 8-1/4	7-5/16 to 7-3/8	30-15/64
200423A 883-90	200397A 993-90	203582A 884-90	203593A 994-90	8-11/16 to 8-3/4	7-3/4 to 7-13/16	31-15/64
200424A 883-95	200398A 993-95	203583A 884-95	203594A 994-95	9-3/16 to 9-1/4	8-5/16 to 8-3/8	32-13/64
200425A 883-100	200399A 993-100	203584A 884-100	203595A 994-100	9-5/8 to 9-11/16	8-3/4 to 8-13/16	33-11/64
203282A 883-105	Not Offered	203585A 884-105	203596A 994-105	9-15/16 to 10	9-3/16 to 9-1/4	33-25/32
202683A 883-110	202675A 983-110	203586A 884-110	203597A 994-110	10-3/4 to 10-13/16	9-13/16 to 9-7/8	35-9/64
202943A 883-120	202944A 993-120	203587A 884-120	203598A 994-120	11-11/16 to 11-3/4	10-15/16 to 11	37-7/64
200426A 883-130	202682A 993-130	203588A 884-130	203599A 994-130	13-1/16 to 13-1/8	12-1/8 to 12-3/16	39-25/32

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Study the charts to insure you're selecting the correct belt size. Comet Series, center distance and driven pulley outer diameter. An incorrect belt size can cause excessive wear and possible damage to the belt, torque converter components, bearings... even your engine. Should your machine's center distance between the crankshaft and the jackshaft fall between the center distance settings listed here, select from the two belts, the one with the larger outside circumference (O.C.) for best wear and to avoid machine "creep" during idling.

Comet 40 and 44 Series 7/8" Top Width Belts
Part Number	Center Distance 7-1/2" Driven	Center Distance 8-1/2" Driven	O.C. Length
203783A 40-75	7 1/4	NO FIT	31 61/64
203784A 40-80	7 7/8	NO FIT	32 29/32
203785A 40-85	8 3/16	NO FIT	33 7/8
203786A 40-90	8 5/8	7 5/8	34 27/32
203787A 40-95	9 3/8	8 3/16	35 51/64
203788A 40-100	9 3/4	8 11/16	36 25/32
203792A 40-105	10 1/8	9 3/16	37 3/4
203789A 40-110	10 1/2	9 5/8	38 21/32
203790A 40-120	11 1/2	10 9/16	40 1/2
203791A 40-130	12 5/8	11 11/16	42 21/32
204331A 40-140	13 3/4	12 5/8	44 17/32