One New Aftermarket Replacement B Section V-Belt (5/8″ x 78″) for New Idea, Case IH, Kubota, Scag, Toro, Troy-Bilt, Cub Cadet, MTD and More
This B Section (B75) V-belt measures 5/8″ wide by 78″ in outside circumference length and is constructed with polyester cord for strength and flexibility. It serves as a drive belt on straw chopper jack shaft drives (New Idea), mower deck drives, and a wide range of other agricultural and lawn and garden power transmission applications across multiple equipment brands.
Specifications
- Type: B Section (Classic V-Belt)
- Top Width: 5/8″
- Outside Circumference (OC) Length: 78″
- Depth: 13/32″
- Thickness: 0.381″
- Material: Polyester Cord
- Cross-reference standard sizes: B75 / 5L780
Compatible Models
New Idea: 176, 177
Case / International Harvester (Case IH / IH): 730 Swather/Windrower
Kubota (Compact Tractors / Mower Decks): B1700, B2100, B7300, RFM48, 48″ Decks
Scag (Walk-Behind Mowers): 61-16OS01, 61-16OS02, 61-20KS01, 61-20KS02, 71-16OS01, 71-20KS01
Toro: 725, 730, 742, 750
MTD / Cub Cadet / Troy-Bilt: 1-0600, 1-0601, 1-0610, 1-0611, 1-0612, 1-0620, 1-0630, 1-0631, 1-0650, 1-0651, 1-8755
New Idea / Case IH Balers: 483, 484
Additional Models: B7300, B2100, B1700 (Kubota compact tractors with 48″ mid-mower decks)
Replaces Part Number(s):
B75, 5L780, 103351, 48244, 70050-94703, 7005094703, 136176, 138263, 104774, 175403, 20365K, 22198K, 553406R1, 592128R1, 617910R1
New aftermarket replacement part – not remanufactured, not used.








