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Product Description

- Since 1999 its inception EPCHUNMi has been focused on one thing... the customer experience.
- EPCHUNMi is a professional supplier engaged in the development, customized,sale and sale-after of auto engine parts.We provide performance and replacement parts, along with every consumer item you’ll ever need.
Compitable with Chrysler and Dodge
300 2005-2022 5.7L V8 CYL 345 CID,Front;
Aspen 2007-2009 5.7L V8 CYL 345 CID,Front;
Challenger 2009-2022 5.7L V8 CYL 345 CID,Front;
Challenger 2011-2022 6.4L V8 CYL 6424 cc 392 CID,Front;
Charger 2006-2022 5.7L V8 CYL 345 CID,Front;
Charger 2012-2022 6.4L V8 CYL 6424 cc 392 CID,Front;
Durango 2006-2009 5.7L V8 CYL 345 CID,Front;
Compitable with Dodge and Jeep
Durango 2011-2022 5.7L V8 CYL 345 CID,Front;
Durango 2018-2022 6.4L V8 CYL 6424 cc 392 CID,Front;
Magnum 2005-2008 5.7L V8 CYL 345 CID,Front;
Ram 1500 2006-2010 5.7L V8 CYL 345 CID,Front;
Commander 2006-2010 5.7L V8 CYL 345 CID,Front;
Grand Cherokee 2005-2022 5.7L V8 CYL 345 CID,Front;
Grand Cherokee 2012-2021 6.4L V8 CYL 6424 cc 392 CID,Front;
Compitable with Ram
1500 2011-2022 5.7L V8 CYL 345 CID,Front;
1500 Classic 2019-2022 5.7L V8 CYL 345 CID,Front;
2500 2014-2020 6.4L V8 CYL 6424 cc 392 CID,Front;
3500 2014-2022 6.4L V8 CYL 6424 cc 392 CID,Front;
4500 2014-2021 6.4L V8 CYL 6424 cc 392 CID,Front;
5500 2014-2022 6.4L V8 CYL 6424 cc 392 CID,Front;

Replace:53021717AC MLG104. Compatible with 2005-2022 5.7L 6.4L V8 Engines
- This MDS Valve Lifter Guide kit fits for 2005-2022 5.7L 6.4L V8 Engines
- Do not start the engine immediately after the MDS Valve Lifter Guide is replaced.
- Any malfunction and damage to the rocker arm or hydraulic lifter will reduce the horsepower of the engine or even cause the engine to fail completely, preventing a smooth ride.
- The best way to deal with it: disassemble the engine cylinder head and replace the hydraulic tappet or rocker arms.

Common symptoms in bad rocker arms include cracks or wear, strange noises or loose etc.
1.When you start the engine you will hear the Clicking or Ticking Noises.
2.Weak Engine Performance or Stalling.(poor acceleration , decreased power and affect the life of the engine.)
3.Engine Light On (DTC codes will be P2646, P2647 etc.)
4.Physical Deterioration (Severely worn etc).

Why Replace?
This Lifter & rocker arms can help you resolve problems such as poor acceleration, decreased power or abnormal noise.Please replace it as soon as possible to avoid further damaging your engine. In time to ensure the reliability of the vehicle and the safety on the road.

What's the Rocker arms & How Does It Work?
Rocker arms are reciprocating lever used in an internal combustion engine. They are typically located between the intake and exhaust valves and pushrods which are connected with crankshaft below the engine.
When the crankshaft rotates it cause up and down movement of the pushrods, then the pushrods pushed and pulled the rocker arm to rock up and down which cause opening and closing of the intake and exhaust valves. Then power can flow from the combustion chamber of engine through various parts to the wheels to put the vehicle in motion.
The broken and loose rocker arm cause poor performance of the engine, the engine will be enable to take the full load of the vehicle and in severe cases engine failed to start.

What's the Hydraulic Tappet & How Does It Work?
1.A Hydraulic Tappet, also known as valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine.Hydraulic Tappet keeps the valve healthy and protects from an engine's normal thermal expansion process.
2.The hydraulic lifter was designed to allow the valve train to operate with zero clearance—leading to quieter operation, longer affect the life of the engine, and eliminating the need for periodic adjustment of valve clearance.
3.Replace Your Bad Hydraulic Tappets On Time.

Common symptoms in bad rocker arms include cracks or wear, strange noises or loose etc.

Why Replace?

What's the Rocker arms & How Does It Work?

What's the Hydraulic Tappet & How Does It Work?

Rocker Arms & Hydraulic Tappet are not well known for people but they are very important component of the internal combustion engine.
- Optimized Performance
The Rocker Arm & Hydraulic Tappet that is intact and free from wear contributes to excellent horsepower and acceleration, preventing valve train noise and unnecessary valve train component wear.
- Installation Notes:
- Hydraulic tappets must be kept highly clean during installation , the engine oil should also meet the corresponding cleanliness;
- The outer surface of the hydraulic tappet should not be damaged during installation;
- Before installing the hydraulic tappet, it should be diffused into the oil.
- If you have no installation experience, it is recommended to seek the help of professional maintenance personnel or watch the installation video.
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