{"product_id":"dial-6319-blower-pulley-with-keyway-9-inches-x-3-4-inches","title":"Dial 6319 Blower Pulley with Keyway 9 Inches X 3\/4 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Dial 6319 is a single-groove blower pulley built for residential evaporative coolers. It measures 9 inches in diameter with a 3\/4-inch bore and features a keyway slot for a secure, locked fit on the blower shaft. This pulley is cast from zinc and finished in silver, giving it solid resistance to wear and corrosion in the demanding conditions inside an evaporative cooler cabinet. The keyway design prevents the pulley from spinning freely on the shaft, which eliminates slippage and keeps the belt running true under load. When a pulley slips or wobbles, the blower wheel loses speed, airflow drops, and the cooler struggles to push conditioned air through the pads and into the living space. Replacing a worn or damaged pulley with the Dial 6319 restores proper belt tension, shaft alignment, and blower wheel speed. HVAC technicians and service professionals working on swamp cooler repairs or seasonal startups rely on direct-replacement pulleys like this one to get equipment back online quickly. The round, single-groove profile is compatible with standard V-belts used on a wide range of residential evaporative cooler models. Proper pulley sizing is critical: a 9-inch diameter pulley paired with the correct motor pulley sets the blower RPM to match the design airflow of the unit. Too small a pulley slows the blower; too large overloads the motor. The Dial 6319 is sized and machined to factory specifications so installers can trust the fit without modification. Dial Manufacturing has a long track record supplying evaporative cooler replacement parts to the trade, and this pulley reflects that commitment to dimensional accuracy and material quality.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e9-inch diameter with 3\/4-inch bore and keyway for secure shaft engagement\u003c\/li\u003e\n\u003cli\u003eSingle-groove design compatible with standard V-belts on residential evaporative coolers\u003c\/li\u003e\n\u003cli\u003eZinc construction with silver finish for durability and corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe Dial 6319 blower pulley delivers a precise, slip-free fit for residential evaporative cooler blower shafts, restoring proper airflow and belt-drive performance on a wide range of swamp cooler models.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DIAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6319\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Zinc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Blower Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Type\u003c\/strong\u003e: Single Groove\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DIAL","offers":[{"title":"Default Title","offer_id":51120982163762,"sku":"6319","price":23.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/179768-Uqr4YE.jpg?v=1777744965","url":"https:\/\/voomisupply.com\/products\/dial-6319-blower-pulley-with-keyway-9-inches-x-3-4-inches","provider":"Voomi Supply","version":"1.0","type":"link"}