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This classical V-belt in size A39 fits the Yanmar 3TNC78, a three-cylinder diesel engine widely used in compact machinery and tractors. The belt drives the alternator and water pump. Ordering by OEM number 121236-42290 is the most reliable method.
✔️ Fits exactly according to OEM number 121236-42290
✔️ Classical A-profile 13 x 8 mm, designation A39
✔️ For the Yanmar 3TNC78 diesel engine
Pay attention to the length type: Li is the inner circumference, Lw/Ld the working length, and La the outer circumference. In doubt? Measure your old belt or order by OEM number.
Yanmar