Fit For:

10 - 14 HYUNDAI SONATA 2.4L 2359CC L4 DOHC

11 - 14 HYUNDAI SONATA 2.4L 2359CC L4 ELECTRIC/ DOHC

11 - 14 KIA OPTIMA 2.4L 2359CC L4 DOHC

11 - 14 KIA OPTIMA 2.4L 2359CC L4 ELECTRIC/ DOHC

Package includes：

• 1 Timing Chain (180 link)
• 1 Tensioner (timing chain tensioner)
• 1 Guide Rail (long fixed rail)
• 1 Guide Rail (curved tensioner rail)
• 1 Crank Sprocket (27T)
• 1 Crank Sprocket (30T - for Oil Pump)
• 1 Lower Chain (74 links - silent chain)
• 1 Tensioner (hydraulic tensioner)
• 1 Tensioner Rail (lower tensioner rail)
• 1 Guide Rail (lower chain fixed rail)

NOTE: Please refer to the listing pictures for an accurate description of the parts included in the kit.

Why do we need to replace the timing chain kit?

A broken timing chain will allow the valves to come into contact with the pistons in severe failures on some engine models, resulting in very loud knocking and banging noises, catastrophic engine failure, and damage to the valves and pistons.

How to Change a Timing Chain？

Part1  Preparing for Engine Work

• Clean the engine with the proper degreaser thoroughly before beginning.Having your engine clean allows you to better locate any leaks or worn parts. It also makes the job less messy overall. Never clean or work on your engine while it is hot.
• Determine your car's firing order. 
• Disconnect the battery cables. You should not work on your engine with the battery plugged in. First remove the ground cable (negative terminal) and then remove the positive terminal.

​Part2 Disconnecting the Radiator

• Remove the radiator cap. This will allow the coolant to be drained from the system.
• Open the drain cock to drain coolant. 
• Remove the radiator hoses. Trace the radiator hoses from the radiator back to the engine. Squeeze the hose clamps with pliers and slide them back onto the hose. Wiggle the hose to break it free and move it out of the way.

​Part3 Removing the Drive Belt Components

• Locate a routing diagram. This can usually be found posted underneath the hood of your car or in your service manual for serpentine belts (S-belts). If you drive a much older car, you may have a multi-belt design (V-belt). Either way, if you cannot find a routing diagram you should take a picture or draw one before removing the belt(s).
• Release the tension on the belt. 
• Remove the belt. Once tension is released, the belt should slide off of the other pulleys easily.
• Remove the heater hoses from the water pump. If your model has heater hoses attached to the water pump, loosen the hose clamps with a screwdriver and slide them back onto the hose.Wiggle the hose and pull it off of the water pump.
• Remove the water pump.
• Remove crankshaft pulley (harmonic balancer).

​Part4 Removing the Timing Chain

• Remove the timing chain cover. 
• Locate marks on your crankshaft and camshaft gears. 
• Locate marks or “bright” links in your timing chain.
• Set your engine to top dead center.
• Remove the timing chain.

​​Part5 Installing the New Timing Chain

• Lube the gear before installing the new chain.
• Place the new chain onto the gears while aligning with the marks.
• Tighten the chain according to your car manual's specifications.
• Reassemble it as it was disassembled

​Note: Specific installation steps can be searched online or sought help from professionals. The above steps are for reference only

• 10 - 14 HYUNDAI SONATA 2.4L 2359CC L4 DOHC
• 11 - 14 HYUNDAI SONATA 2.4L 2359CC L4 ELECTRIC/ DOHC
• 11 - 14 KIA OPTIMA 2.4L 2359CC L4 DOHC
• 11 - 14 KIA OPTIMA 2.4L 2359CC L4 ELECTRIC/ DOHC