One New Aftermarket Replacement B Section V-Belt (5/8″ x 82″) – B79 / 5L820 – Multi-Brand Fitment
This classical wrapped B-section V-belt is a direct-fit drive belt replacement used in drive systems on lawn and garden tractors, riding mowers, zero-turn mowers, swathers/windrowers, hay and forage equipment, agricultural implements, and industrial machinery. The B79 and 5L820 designations refer to the same belt cross-section and outside circumference. It is a direct replacement for MTD part numbers 754-0178 and 954-0178 as well as cross-references from Fits Grasshopper, Fits Massey Ferguson, Fits Case/IH, GEHL, and many other manufacturers.
Specifications
- Type: B Section (Classical Wrapped) V-Belt
- Top Width: 5/8″
- Outside Circumference: 82″
- Thickness/Depth: 0.381″
- Material: Wrapped Polyester Cord
Compatible Models
MTD / Fits Cub Cadet / Bolens / Fits Craftsman / Troy-Bilt: Models using 754-0178 or 954-0178 drive belt (5/8″ x 82″)
Fits Grasshopper: 915, 1200
Scag: SW-14KA, SW-14KH, SW-16BV, SW-18BV, SW-18CVE, SW-18KH, SW-20KHE
GEHL: 1336, 1336G, 1436H; older GEHL tractor and loader/harvest models using an 82″ drive belt
Fits Massey Ferguson / Hesston: 8210, 8220, 8230, 8240; H 1536; 1507294M1-applicable models
Macdon: XM3203, XM3204, XM3603, XM3604, XM4803, XM4804; 55AD210R195, 55AE210R195, 55AE331R195
Deutz / Fits Allis-Chalmers: 6061, 6261, 9061, 9361
Fits Case/International Harvester: Models referencing 177178C1, 58532C1, 829356C1
Fits Bobcat (Ransomes): MAG-61, M36-12, M48-12, M54-12KA
Fits Toro: Z-Force 15, Z-Force 18, Z-Force 44, Z-Force 48
Minneapolis-Moline / White / Oliver: 73363, 73402, 73428, 73429, 73448, 73449, 73450
Fits Craftsman: 247.887360, 247.889360
General Industry: Any agricultural or lawn and garden drive system requiring a standard B79 / 5L820 (5/8″ x 82″) classical V-belt; balers, hay cutters, headers, combine drives, and forage implements
Replaces Part Number(s):
5L820, B79, B79/5L820, 382049, 55137, 055137, 700710498, 1120714019800, 27-1095P, 00050441, 00050441P, 2010501, AP3282, SO819B, RH2288, 981-0750, PO3282, 1125972, 558323, 70558323, 71123452, S09098, 177178C1, 58532C1, 829356C1, 38039N, 38075, 38075N, 38275, 9211482, 1507294M1, 403071M1, 842538M1, K5563, 9H242B, 48204, 954-0178, 754-0178, 93-9808, L1711C
Aftermarket Interchange Numbers
Rotary 5209; industry standard B79 and 5L820 cross-section designations are interchangeable with this belt.
New aftermarket replacement part – not remanufactured, not used.






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