{"product_id":"4042157-arm-rocker-exhst","title":"4042157: ARM;ROCKER,EXHST","description":"**Product Description: Exhaust Rocker Arm**\n\n**Function:**\n- Transfers motion from the camshaft to the exhaust valve, allowing timely opening and closing during the engine cycle.\n- Converts upward motion of the pushrod into downward motion to open the exhaust valve, releasing burnt air and fuel mixture from the cylinder.\n\n**Construction and Materials:**\n- Typically made from stamped steel or aluminum for high-revving applications.\n- Roller rockers may include a bearing at the contact point to reduce wear and friction.\n- High-performance rocker arms may be made from investment 17-4 stainless steel for high tensile strength.\n\n**Features:**\n- May include a roller tip to reduce side loading forces on valves, decreasing valve guide wear.\n- Could have pressed-in bronze bushings for precise fit and durability.\n- Designed with a specific rocker ratio, determining how much it multiplies the camshaft lobe lift.\n\n**Types:**\n- Mounting Types:\n  - Pedestal mount (common in LS engines)\n  - Shaft mount\n  - Stud mount\n\n**Performance Considerations:**\n- Contributes to the reciprocating weight of the valvetrain, affecting engine performance at higher RPMs.\n- Helps dampen harmonics from the cylinder side of the valve train in aggressive applications.\n- May be rebuildable, allowing for economical repair in case of roller damage or bushing wear.\n\n**Additional Information:**\n- Design may vary depending on the engine make and model.\n- Proper installation and torquing are crucial for optimal performance and engine longevity.\n\n**Note:**\n- For specific details regarding compatibility with particular engine models or vehicles, please obtain the exact engine model or application intended for this rocker arm.","brand":"HYSTER","offers":[{"title":"Default Title","offer_id":42753670611122,"sku":"HY-HY4042157","price":49.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/9630\/0696\/products\/White_and_Red_Round_Fitness_Logo404_3cd1068f-7e1c-4fcc-b094-1dc8b48e3aa1.webp?v=1698616259","url":"https:\/\/www.motofork.com\/en-pe\/products\/4042157-arm-rocker-exhst","provider":"Motofork","version":"1.0","type":"link"}