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Cylinder Heads FAQ: Everything You Need to Know

What is a Cylinder Head?

It's a housing, often comprised of cast-iron or aluminum, located on the top of your vehicle's engine block. It contains several major engine parts -- among them, intake and exhaust valves, springs and lifters, and the combustion chamber.

What Does One Do?

Three things. One is taking in air and fuel via ports or tracts and expelling exhaust gases. Another is helping keep the many parts of the engine cooler by channeling coolant into the block. The last is, with help from a head gasket, preventing water and oil from leaking into the combustion chambers.

What Types are There?

Three main ones. Flathead cylinder heads, for one, help protect cylinder blocks, and they have no moving parts. Overhead valve cylinder heads, for another example, have camshafts above them, and their pushrods and valves are connected, smoothing out airflow. The third, overhead camshaft cylinder heads, have camshafts located inside them, which eliminates the need for pushrods; they optimize airflow and increase engine efficiency.

What are the Signs of a Bad One?

There are many, including:

  • Cracks (often from engine overheats)
  • Oil leaks
  • Coolant leaks (which can cause further overheating)
  • A misfiring engine
  • General engine performance problems

If you think yours is bad, do a thorough inspection and replace your cylinder head, if not your entire engine, according to the results. Before you buy either, however, be sure it's the genuine article.

Why Buy a Genuine OEM Cylinder Head?

Mopar manufactures them to fit your brand and model specifically. That's a fitment guarantee that you may not get on the aftermarket.

Where Can I Order Mopar Cylinder Heads?

Online, right here at our auto parts store. Simply browse our catalog according to make, model, and year. Order one today, and we'll ship it fast; it'll be on your doorstep in no time.

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Cylinder Head
MSRP $296.00
Part Number: 68306508AA
Mopar Mopar
Other Names: Head
Replaces: 4892939AC, 4892939AD, RL892939AC, RL892939AD
Description: New Part For Core Return. Complete Assembly.
Notes: Engines: 1.4L I4 16V Turbo FIRE Engine. 1.4L I4 16V MultiAir Turbo Engine.
Fits:
  • Dodge:
    • Dart
  • Fiat:
    • 500
Backordered
Cylinder Head, Partial Machined
MSRP $692.00
Part Number: 4893195AB
Mopar Mopar
Options: Left
Other Names: 04893195ab, Head
Replaces: 4893195AA
Description: Left. Without Valves/Valvetrain.
Notes: Engines: 5.7l v8 hemi cng engine.
Fits:
  • Ram:
    • 2500
Backordered
Engine Cylinder Head Assembly
MSRP $1,155.00
Part Number: 68641995AA
Mopar Mopar
Other Names: Head
Replaces: 05048506AB, 5048020AA, 5048020AB, 5048020AD, 5048020AE, 5048506AA, 5048585AA
Description: After 09/21/2015. Refer To Illustration 105 For Important Engine Identification Information. Used With Engine Production Numbers...
Notes: Engines: 2.4L I4 MultiAir Engine. 2.4L I4 MultiAir Engine w/ ESS. 2.4L I4 PZEV M-Air Engine. 2.4L I4 PZEV M-Air Engine w/ ESS.
Fits:
  • Chrysler:
    • 200
  • Dodge:
    • Dart
  • Fiat:
    • 500X
  • Jeep:
    • Cherokee,
    • Compass,
    • Renegade
  • Ram:
    • ProMaster City
Cylinder Head
MSRP $2,070.00
Part Number: 5114415AA
Mopar Mopar
Other Names: 05114415aa, Head
Fits:
  • Dodge:
    • Ram 2500,
    • Ram 3500
Backordered
Cylinder Head
MSRP $1,330.00
Part Number: 5170621AA
Mopar Mopar
Options: Left
Other Names: 05170621aa, Head
Replaces: RL170621AA
Description: Left. See Notes. Includes Valves And Springs.
Notes: Engines: 6.1l srt hemi smpi v8 engine.
Fits:
  • Chrysler:
    • 300
  • Dodge:
    • Challenger,
    • Charger,
    • Magnum
  • Jeep:
    • Grand Cherokee
Cylinder Head, Partial Machined
MSRP $299.00
Part Number: 5192114AC
Mopar Mopar
Options: Right
Other Names: 05192114ac, Head
Replaces: 5192114AB
Description: Right. Without Valves/Valvetrain.
Notes: Engines: 5.7l v8 hemi hev engine.
Fits:
  • Dodge:
    • Ram 1500
  • Ram:
    • 1500
Backordered
Engine Cylinder Head Kit
MSRP $1,040.00
Part Number: 68004168AI
Mopar Mopar
Other Names: Engine Cylinder Head Package, Cylinder Head, Engine Cylinder Head Kit, Complete, Head Kit
Replaces: 4884469AD, 68004168AA, 68004168AB, 68004168AC, 68004168AD, 68141739AA, 68141739AB, RL004168AB, RL004168AC, RL004168AD
Description: See Note For Contents. Complete.
Notes: Engines: 2.0l i4 dohc 16v dual vvt engine. 2.0l i4 dohc 16v e22 vvt engine. 2.4l i4 dohc 16v dual vvt engine. 1.8l 4 cyl dohc 16v...
Fits:
  • Chrysler:
    • 200,
    • Sebring
  • Dodge:
    • Avenger,
    • Caliber,
    • Journey
  • Jeep:
    • Compass,
    • Patriot
Backordered
Cylinder Head
MSRP $379.00
Part Number: 53021608AK
Mopar Mopar
Options: Right
Other Names: Head
Description: Right. An Updated Cylinder Head With A EGR Valve Hole May Be Received In Place Of The Old. If Vehicle Did Not Orginally Have EGR Valve...
Fits:
  • Dodge:
    • Ram 1500,
    • Ram 2500,
    • Ram 3500
Backordered
Cylinder Head, Right Side, Remanufactured
MSRP $971.00
Part Number: 68141352AD
Mopar Mopar
Options: Right, Left
Other Names: Cylinder Head, Right Side, Cylinder Head, Left Side, HeadAndValve
Replaces: 68141352AB, 68141352AC, 68141352AE, RL141352AB, RL141352AC, RL141352AD, RL141352AE
Description: With Valves. Remanufactured Cylinder Heads Include Cylinder Head Gasket. WARNING: Cylinder Heads Are Shipped WITHOUT Oil Gallery...
Notes: Engines: 3.6L Mid V6 Engine. 3.6l v6 24v vvt engine w/ess. 3.6l v6 ffv 24v vvt engine.
Fits:
  • Chrysler:
    • 200,
    • 300,
    • Town & Country
  • Dodge:
    • Avenger,
    • Challenger,
    • Charger,
    • Durango,
    • Grand Caravan,
    • Journey
  • Jeep:
    • Grand Cherokee,
    • Wrangler,
    • Wrangler JK
  • Ram:
    • 1500,
    • 1500 Classic,
    • C/V,
    • ProMaster 1500,
    • ProMaster 2500,
    • ProMaster 3500
Cylinder Head, Right Side, Remanufactured
MSRP $971.00
Part Number: 68141352AD
Mopar Mopar
Options: Right, Left
Other Names: Cylinder Head, Right Side, Cylinder Head, Left Side, HeadAndValve
Replaces: 68141352AB, 68141352AC, 68141352AE, RL141352AB, RL141352AC, RL141352AD, RL141352AE
Description: With Valves. Remanufactured Cylinder Heads Include Cylinder Head Gasket. WARNING: Cylinder Heads Are Shipped WITHOUT Oil Gallery...
Notes: Engines: 3.6L Mid V6 Engine. 3.6l v6 24v vvt engine w/ess. 3.6l v6 ffv 24v vvt engine.
Fits:
  • Chrysler:
    • 200,
    • 300,
    • Town & Country
  • Dodge:
    • Avenger,
    • Challenger,
    • Charger,
    • Durango,
    • Grand Caravan,
    • Journey
  • Jeep:
    • Grand Cherokee,
    • Wrangler,
    • Wrangler JK
  • Ram:
    • 1500,
    • 1500 Classic,
    • C/V,
    • ProMaster 1500,
    • ProMaster 2500,
    • ProMaster 3500
Cylinder Head, Left Side
MSRP $1,805.00
Part Number: 68144707AA
Mopar Mopar
Options: Left
Other Names: Cylinder Head, Remanufactured, Head
Replaces: R8144707AA
Description: Updated since catalog release new with valves part number. Left. Note Valvetrain Is NOT Included.
Notes: Engines: 4.7l v8 ffv engine.
Fits:
  • Chrysler:
    • Aspen
  • Dodge:
    • Dakota,
    • Durango,
    • Ram 1500
  • Jeep:
    • Commander,
    • Grand Cherokee
  • Ram:
    • 1500,
    • Dakota
Engine Cylinder Head Assembly, Right Side
MSRP $694.00
Part Number: 68280502AF
Mopar Mopar
Options: Right
Other Names: Cylinder Head, Partial Machined, Cylinder Head, Head
Replaces: 68280502AA, 68280502AB, 68280502AC, 68280502AD, 68280502AE
Description: Right. Without Valves/Valvetrain Serviced With Item 1 Complete. New For Core Return.
Notes: Engines: 5.7l v8 engine with etorque. 5.7l v8 hemi mds vvt engine. 5.7l v8 hemi mds vvt engine w/ bsg.
Fits:
  • Chrysler:
    • 300
  • Dodge:
    • Challenger,
    • Charger,
    • Durango
  • Jeep:
    • Grand Cherokee,
    • Grand Cherokee L,
    • Wagoneer
  • Ram:
    • 1500,
    • 1500 Classic,
    • 2500,
    • 3500
Engine Cylinder Head Assembly, Right Side
MSRP $694.00
Part Number: 68280502AF
Mopar Mopar
Options: Right
Other Names: Cylinder Head, Partial Machined, Cylinder Head, Head
Replaces: 68280502AA, 68280502AB, 68280502AC, 68280502AD, 68280502AE
Description: Right. Without Valves/Valvetrain Serviced With Item 1 Complete. New For Core Return.
Notes: Engines: 5.7l v8 engine with etorque. 5.7l v8 hemi mds vvt engine. 5.7l v8 hemi mds vvt engine w/ bsg.
Fits:
  • Chrysler:
    • 300
  • Dodge:
    • Challenger,
    • Charger,
    • Durango
  • Jeep:
    • Grand Cherokee,
    • Grand Cherokee L,
    • Wagoneer
  • Ram:
    • 1500,
    • 1500 Classic,
    • 2500,
    • 3500
Engine Cylinder Head Assembly, Right Side
MSRP $1,415.00
Part Number: 68280506AD
Mopar Mopar
Options: Right
Other Names: Engine Cylinder Head Assembly, Right Hand, Head
Replaces: 68238142AA, 68280506AA, 68280506AB, 68280506AC
Notes: Engines: 6.4l v8 mid duty hemi mds engine. 6.4L Heavy Duty V8 HEMI with MDS.
Fits:
  • Ram:
    • 2500,
    • 3500
Engine Cylinder Head Assembly, Left Side
MSRP $1,560.00
Part Number: 68280509AD
Mopar Mopar
Other Names: Head
Replaces: 68226136AA, 68280509AA, 68280509AB, 68280509AC
Notes: Engines: 6.4l v8 heavy duty hemi mds engine.
Fits:
  • Ram:
    • 2500,
    • 3500
Engine Cylinder Head Assembly, Left Side
MSRP $1,180.00
Part Number: 68280511AD
Mopar Mopar
Options: Left
Other Names: Engine Cylinder Head Assembly, Head
Replaces: 68086556AA, 68278049AA, 68280511AA, 68280511AB, 68280511AC, RL086556AA
Description: New Part For Core Return.
Notes: Engines: 6.4l v8 srt hemi engine. 6.4l v8 srt hemi mds engine.
Transmissions: 5-Speed Auto W5A580 Transmission.
Fits:
  • Chrysler:
    • 300
  • Dodge:
    • Challenger,
    • Charger,
    • Durango
  • Jeep:
    • Grand Cherokee,
    • Grand Wagoneer,
    • Wrangler
Engine Cylinder Head Assembly, Left Side
MSRP $1,180.00
Part Number: 68280511AD
Mopar Mopar
Options: Left
Other Names: Engine Cylinder Head Assembly, Head
Replaces: 68086556AA, 68278049AA, 68280511AA, 68280511AB, 68280511AC, RL086556AA
Description: New Part For Core Return.
Notes: Engines: 6.4l v8 srt hemi engine. 6.4l v8 srt hemi mds engine.
Transmissions: 5-Speed Auto W5A580 Transmission.
Fits:
  • Chrysler:
    • 300
  • Dodge:
    • Challenger,
    • Charger,
    • Durango
  • Jeep:
    • Grand Cherokee,
    • Grand Wagoneer,
    • Wrangler
Cylinder Head, Left Side
MSRP $336.00
Part Number: 68293289AA
Mopar Mopar
Other Names: HeadAndValve
Description: Complete. With Valves.
Notes: Engines: 3.6L V6 24V VVT Engine Upg I w/ESS. 3.6L V6 24V VVT Engine Upgrade I. 3.6L V6 PHEV Hybrid Engine.
Fits:
  • Chrysler:
    • Pacifica,
    • Voyager
  • Dodge:
    • Durango
  • Jeep:
    • Gladiator,
    • Grand Cherokee,
    • Wrangler
  • Ram:
    • 1500
Engine Cylinder Head Assembly
MSRP $2,005.00
Part Number: 68341092AA
Mopar Mopar
Other Names: Head
Notes: Engines: 3.0L I4 F1C Turbo Diesel Engine.
Transmissions: 6-speed dual active drive trans.
Fits:
  • Ram:
    • ProMaster 1500,
    • ProMaster 2500,
    • ProMaster 3500
Engine Cylinder Head Kit
MSRP $2,065.00
Part Number: 68362014AA
Mopar Mopar
Other Names: Head Pkg
Replaces: 68034276AD, 68034276AG, RL034276AD
Description: See Note For Contents. Complete Cylinder Head.
Notes: Engines: 2.4l 4 cyl pzev 16v dual vvt engine.
Fits:
  • Chrysler:
    • 200
  • Dodge:
    • Avenger
Cylinder Head
MSRP $4,380.00
Part Number: 68623633AA
Mopar Mopar
Other Names: Head
Replaces: 68444786AA
Description: With Valves.
Notes: Engines: 6.7l i6 cummins ho turbo diesel eng. 6.7l i6 cummins turbo diesel engine.
Transmissions: 6-spd 865 torque...
Fits:
  • Ram:
    • 2500,
    • 3500
Engine Cylinder Head Assembly, Left Side
MSRP $1,870.00
Part Number: 68483336AA
Mopar Mopar
Options: Left
Other Names: Engine Cylinder Head Assembly, Left, Head
Replaces: 68211171AA, 68211171AB, 68286497AA, 68292425AA, 68295799AA
Description: Complete Less Camshafts. Cylinders 4, 5, 6.
Notes: Engines: 3.0L V6 Turbo Diesel Engine. 3.0L V6 Turbo Diesel Engine w/ESS.
Fits:
  • Jeep:
    • Grand Cherokee
  • Ram:
    • 1500,
    • 1500 Classic
Cylinder Head, Right Side, Remanufactured
MSRP $839.00
Part Number: R3620112AA
Mopar Mopar
Other Names: HeadAndValve
Description: With Valves. Remanufactured Cylinder Heads Include Cylinder Head Gasket. WARNING: Cylinder Heads Are Shipped WITHOUT Oil Gallery...
Notes: Engines: 3.6L Mid V6 Engine. 3.6l v6 24v vvt engine w/ess. 3.6l v6 ffv 24v vvt engine.
Fits:
  • Chrysler:
    • 200,
    • 300,
    • Town & Country
  • Dodge:
    • Avenger,
    • Challenger,
    • Charger,
    • Durango,
    • Grand Caravan,
    • Journey
  • Jeep:
    • Grand Cherokee,
    • Wrangler,
    • Wrangler JK
  • Ram:
    • 1500,
    • 1500 Classic,
    • C/V,
    • ProMaster 1500,
    • ProMaster 2500,
    • ProMaster 3500
Cylinder Head
MSRP $2,400.00
Part Number: R5135783AA
Mopar Mopar
Other Names: Head
Description: After 01-04-04.
Fits:
  • Dodge:
    • Ram 2500,
    • Ram 3500
Cylinder Head
MSRP $655.00
Part Number: R6637022AB
Mopar Mopar
Options: Right
Other Names: Head
Replaces: 53020988AB, R6637022
Description: CYLINDER
Fits:
  • Dodge:
    • Dakota,
    • Durango,
    • Ram 1500
  • Jeep:
    • Liberty
Cylinder Head, Remanufactured
MSRP $2,805.00
Part Number: R8210511AB
Mopar Mopar
Other Names: Head
Description: With Valves.
Notes: Engines: 6.7L I6 Cummins Turbo Diesel Engine.
Transmissions: 6-Spd Auto Aisin AS69RC HD Trans. 6-Speed Manual G56...
Fits:
  • Ram:
    • 3500
Cylinder Head
MSRP $1,300.00
Part Number: R8249421AA
Mopar Mopar
Other Names: Cylinder Head, Remanufactured, Head
Description: Use with casting # 04667086AC. Casting number 04667086AC.
Notes: Engines: 2.0l 4 cyl dohc 16v smpi engine. 2.4l 4 cyl dohc 16v ho turbo engine. 2.4l 4 cyl dohc 16v smpi engine.
Fits:
  • Chrysler:
    • PT Cruiser,
    • Sebring,
    • Voyager
  • Dodge:
    • Caravan,
    • Neon,
    • Stratus
  • Jeep:
    • Liberty,
    • Wrangler
Cylinder Head, Partial Machined
MSRP $284.00
Part Number: 53021608DF
Mopar Mopar
Options: Right
Other Names: Cylinder Head, Head
Replaces: 53021608DD, 53021608DE, RL021608DD, RL021608DE
Description: Right. New For Core Return. Without Valves/Valvetrain Serviced With Item 1 Complete.
Notes: Engines: 5.7l v8 hemi mds vvt engine. 5.7l v8 hemi vvt engine. 5.7l hemi vct engine. 5.7l hemi vct mds engine. 5.7l v8 hemi mds...
Fits:
  • Chrysler:
    • 300,
    • Aspen
  • Dodge:
    • Challenger,
    • Charger,
    • Durango,
    • Ram 1500,
    • Ram 2500
  • Jeep:
    • Commander,
    • Grand Cherokee
  • Ram:
    • 1500,
    • 2500,
    • 3500
Backordered
Cylinder Head
MSRP $335.00
Part Number: RL667088AB
Mopar Mopar
Other Names: Head
Replaces: 4667088AB
Description: Casting number 04667086AB.
Fits:
  • Chrysler:
    • PT Cruiser,
    • Sebring,
    • Voyager
  • Dodge:
    • Caravan
Cylinder Head, Right, Partial Machined
MSRP $548.00
Part Number: RL892066AA
Mopar Mopar
Options: Right
Other Names: Cylinder Head, Right, Cylinder Head, Head
Replaces: 4663978AD, 4892066AA
Description: Right. See Notes.
Notes: Engines: All V6 Engines. 2.7l v6 dohc 24 valve mpi engine.
Fits:
  • Chrysler:
    • 300,
    • Concorde,
    • Sebring
  • Dodge:
    • Avenger,
    • Charger,
    • Intrepid,
    • Journey,
    • Magnum,
    • Stratus
Backordered
Cylinder Head
MSRP $2,450.00
Part Number: 68444787AA
Mopar Mopar
Other Names: Head
Description: With Valves.
Notes: Engines: 6.7L I6 Cummins Turbo Diesel Engine.
Transmissions: 6-Spd Auto Aisin AS69RC HD Trans.
Fits:
  • Ram:
    • 3500
Cylinder Head
MSRP $3,115.00
Part Number: 68476394AA
Mopar Mopar
Other Names: Head
Description: With Valves.
Notes: Engines: 1.3L I4 Turbo MAir DI Engine w/ESS.
Transmissions: 9-spd 948te awd auto trans. 9-spd 948te auto transmission.
Fits:
  • Fiat:
    • 500X
  • Jeep:
    • Renegade
Engine Cylinder Head Assembly, Right Side
MSRP $1,825.00
Part Number: 68483335AA
Mopar Mopar
Options: Right
Other Names: Engine Cylinder Head Assembly, Right, Head
Replaces: 68286496AA, 68292424AA, 68295798AA
Description: Complete Less Camshafts. Cylinders 1,2, 3.
Notes: Engines: 3.0L V6 Turbo Diesel Engine. 3.0L V6 Turbo Diesel Engine w/ESS.
Fits:
  • Jeep:
    • Grand Cherokee
  • Ram:
    • 1500,
    • 1500 Classic
Cylinder Head, Right Side
MSRP $859.00
Part Number: 68490099AA
Mopar Mopar
Other Names: Head
Replaces: 68490100AA
Description: Less Valves.
Notes: Engines: 3.0L V6 Turbo Diesel Engine Gen 3. 3.0L V6 Turbo Diesel Engine w/ESS G3.
Transmissions: 8-Spd Auto 8HP75 Trans...
Fits:
  • Jeep:
    • Gladiator,
    • Wrangler
  • Ram:
    • 1500
Cylinder Head
MSRP $1,155.00
Part Number: 5037064AE
Mopar Mopar
Other Names: 05037064ae, Head
Replaces: 5037064AB, 5037064AC, 5037064AD
Description: CYLINDER
Fits:
  • Dodge:
    • Viper
Backordered
Cylinder Head, Complete
MSRP $1,875.00
Part Number: 5037711AG
Mopar Mopar
Other Names: 05037711ag, Head
Replaces: RL037711AG
Description: With Valves/Valvetrain. New Part For Core Return.
Notes: Engines: 8.4l v10 sfi engine.
Fits:
  • SRT:
    • Viper
Backordered
Cylinder Head, Right
MSRP $1,145.00
Part Number: 5096476AA
Mopar Mopar
Other Names: 05096476aa, Head
Notes: Engines: 3.2L V6 SOHC 18 Valve Engine. 3.2L V6 Supercharged Engine.
Transmissions: 5-SPD AUTO W5A330 TRANSMISSION....
Fits:
  • Chrysler:
    • Crossfire
Cylinder Head, Partial Machined
MSRP $345.00
Part Number: 5192115AC
Mopar Mopar
Options: Left
Other Names: 05192115ac, Head
Description: Left. Without Valves/Valvetrain.
Notes: Engines: 5.7l v8 hemi hev engine.
Fits:
  • Dodge:
    • Ram 1500
  • Ram:
    • 1500
Backordered

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