Many parts look similar, so it’s crucial to ensure you’re choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement.

• Fits many 409777 / 40H777 / 40N777 / 40N877 / 40R677 / 40S877 / 40T677 / 40T876 / 40T877 / 40U777 / 40U877 / 44C677 / 44C777 / 44C877 / 44J677 / 44M777 / 44N677 / 44N777 / 44N877 / 44Q777 / 44Q977 / 44R877 / 44S677 / 44S877 / 44S977
• Also fits many 44T677 / 44T877 / 44T977 / 44U577 / 44U677 / 44U777 / 44U877 / 49J677 / 49S777 / 49S877 / 49T777 / 49T877 / 797091 / 797092 / 797093 For more compatibility information please contact us
• The camshaft controls the timing of the opening and closing of the engine's intake and exhaust valves, ensuring optimal engine performance
• The shape of the camshaft lobes (cam profile) determines the lift and duration of the valve opening, affecting engine power and efficiency
• Camshafts are designed to withstand the stresses of engine operation
• The angle between the intake and exhaust lobes affects the overlap of valve openings, influencing engine characteristics such as torque and horsepower

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