Engine Rocker Arms & Valve Lifters Set 4.6 5.4 6.8 L V8 Gas SOHC DOHC Compatible with Explorer F-150 F 150 250 350 450 Compatible with Lincoln Mercury, 12 Pair

Engine Rocker Arms & Valve Lifters Set 46 54 68 L V8 GAS SOHC DOHC Compatible With EXPLORER F150 F 150 250 350 450 Compatible With LINCOLN MERCURYOEM :3L3Z6564BA 3L3Z6564A 5L1Z6500A 5L1Z6500AAAdapted Vehicle : 4.6 5.4 6.8 L V8 GAS SOHC DOHC Compatible With MAKE MOEL YEAR TRIM EXPLORER 2006-2010 4.6 EXPLORER SPORT TRAC 2007-2010 4.6 F-150 2005-2010 4.6 5.4 MUSTANG 2005-2010 4.6 EXPEDITION 2005-2014 5.4 F-250 SUPER DUTY 2005-2010 5.4 6.8 F-350 SUPER DUTY 2005-2010 5.4 6.8 F-450 SUPER DUTY 2005-2015 6.8 F-550 SUPER DUTY 2005-2015 6.8 F53 2006-2015 6.8 F59 2011-2015 6.8 Compatible With LINCOLN MARK LT 2006-2008 5.4 Compatible With LINCOLN NAVIGATOR 2005-2014 5.4 Compatible With MERCURY MOUNTAINEER 2006-2010 4.6We are very glad that you have chosen our store, we sincerely welcome you and hope you enjoy a pleasant shopping experience here.

• The rocker arm is an integral part of the engine's valve drive system, located above the engine and connected to the valve stem and valve.
• The rocker arm carries the pressure of the valve spring and transmits it to the valve for control.
• The rocker arm has sufficient strength and rigidity to withstand valve movement and valve spring force at high speed.
• Rocker arms are usually made of cast iron or cast aluminum alloy to provide sufficient strength.
• The rocker arm usually has a CAM contact surface, which controls the opening and closing time of the valve through the rotation of the camshaft.