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Your cart is empty.Keep your finish mower running smoothly with this premium idler pulley replacement. Specifically designed to replace King Kutter part #164090, this pulley is engineered for perfect compatibility with RFM Series Finish Mowers, accommodating 4-foot, 5-foot, and 6-foot models equipped with a single belt drive system. The heavy-duty construction features precision bearings and a zinc-plated steel housing that stands up to demanding mowing conditions. This cost-effective replacement part maintains proper belt tension and alignment, ensuring consistent power transfer and extending belt life. The pulley's robust design helps prevent common issues like belt slippage and premature wear, keeping your mower operating at peak performance. Installation is straightforward, with the pulley matching the original specifications for a direct fit. This replacement part is an essential component for maintaining the cutting efficiency and reliability of your finish mower.