100% Highly matched to the original device Sturdy and durable, long service life Part Number: 640349, 640052, 640054, 640058, 640058A Material: Metal Color: Silver Fitment: For Tecumseh 8, 9, 10 HP engines Compatible with Craftsman, Toro, Ariens 824 Snow Blower Replaces Oregon 50-659, Stens 520-926 carburetors Fits Tecumseh models: HMSK80, HMSK90, LH318SA, L358SA Suitable for 8hp, 9hp, 10hp snow blowers, generators, and chipper machines Troubleshooting Tips: 1. Oil circuit issue: Ensure fuel flows smoothly from tank to carburetor. Check for blockages, kinks, or foreign debris in the fuel line. 2. Low idle speed: New carburetors are calibrated for new equipment. On older machines, worn components may require a higher idle setting. Adjust the idle screw (located at the red circle) clockwise by 1-2 turns to increase idle speed. 3. Vacuum port blockage: A blocked vacuum port can cause engine stalling. Inspect the port (shown in red circle) during installation to ensure it is clear. Package Contents: 1 x Carburetor 2 x Clamps 1 x Spark Plug 1 x Gasket 1 x Fuel Line 1 x Fuel Filter 1 x Cut-off Valve 1 x Assembly Note: The package includes only the items listed above. Other accessories are not included. Lighting and monitor settings may cause slight color variations between the product image and actual item. Measurement tolerance: ±1-3 cm.