Product Description
This is a Flat Pulley Idler. Manufactured by Oregon. This part is responsible for guiding and maintaining tension with the drive belt. If you need any assistance in verifying that this Flat Idler Pulley will fit your mower please call or email us. Make sure to have your model and serial number available.
- Replaces: MTD Part # 756-0981, 756-0981A/B, 956-0981A/B, 756-04224, 956-04224.
Here are the pulley size specifications for the Oregon Flat Idler Pulley 78‑028 (Oregon part 78-028):
?️ Pulley Dimensions
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Outer diameter: 3-1/8 inches (approx. 3.13″)
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Flat belt diameter: 2-3/4 inches
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Flat surface width: 7/8 inch
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Overall width: 1-1/8 inches
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Bore (inner hole): 3/8 inch
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Offset: ~1/16 to 1/8 inch
So in summary, the Oregon 78-028 idler pulley has a 3-1/8″ outer diameter with a 7/8″ wide flat surface and a 3/8″ bore — designed for flat belt applications in lawn and garden equipment.