6420530401 TRW Intake Valve
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TRW Intake Valve | 6420530401

Mercedes E320, E350, ML350, ML320, Sprinter 2500 RWD, Sprinter 2500, GL350, Sprinter 3500 RWD, Sprinter 2500 4WD, Sprinter 3500 & more
$9.09
Reg
$9.47
List
$28.50
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Make Sure It Fits

P/N: 6420530401 TRW
Cross References:
  • 3485032

The engine intake valves on your Mercedes open to allow fuel and air to enter the engine cylinders for engine combustion. They function by being held closed flush to a seat on the underside of the cylinder head with a spring pulling upward. When the cylinder needs fuel and air, a rocker arm pushes the valve open. Once the rocker arm releases the valve, the spring pulls the valve closed again so no fuel or air can escape the cylinder for compression and combustion.

Carbon build up on the intake valves can cause them to not seat properly in the cylinder head. This results in air and fuel leaking past the valve during engine compression and combustion. Worn valve springs can cause the valve to not hold closed tightly or make the valve “float” and open during combustion causing the engine to lose power.

Improperly timed engines along with broken timing belts or chains can cause the engine pistons to collide with the intake valves, bending them and causing them to stick or get stuck. Worn or broken rocker arms can also wear and bend the valve stem inside the cylinder head causing them to stick.

Replacing Your Mercedes Intake Valve
Replacement of the intake valves requires removal of the cylinder head. Special tools are needed to release the valve from the springs, remove the valve keepers between the valve and spring, and remove the valves. Valve seats in the cylinder head must be inspected and may need to be recut prior to installing new intake valves to ensure proper valve seating. Replacement of valve springs, valve keepers, rocker arms, rocker arm shaft, cam followers, and pushrods (if equipped) are highly recommended to be replaced along with intake valves to ensure the new valves function properly and the engine runs at maximum efficiency.

View more Mercedes Intake Valves.

Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

Frequently Viewed Together

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What This TRW Intake Valve Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

Mercedes
07-09 - E320 Bluetec
11-13 - E350 Bluetec
07-09 - GL320 Bluetec 4Matic, CDI
10-16 - GL350 Bluetec 4Matic
07-09 - ML320 Bluetec 4Matic, CDI
12-14 - ML350 Bluetec 4Matic
07-09 - R320 Bluetec, CDI
10-12 - R350 Bluetec 4Matic
12-13 - S350 Bluetec 4Matic
10-14 - Sprinter 2500
15-18 - Sprinter 2500 4WD
15-18 - Sprinter 2500 RWD
10-14 - Sprinter 3500
15-18 - Sprinter 3500 4WD
15-18 - Sprinter 3500 RWD