The camshaft, or cam for short, opens and closes the intake and exhaust valves, allowing the fresh air/fuel mixture to enter the cylinder for combustion, and the spent gases to flow out. Most production cams are iron castings that are supported on journals that rotate in bearings, with individual eccentric lobes to actuate each valve. A single cam can be located in the cylinder block, or one or two cams can be mounted on the cylinder head.

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    • (0 reviews)
      # sp11920
      Camshaft Thrust Plate by Melling®. Worn thrust buttons and thrust plates allow for cam walk and component misalignment.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $3.01 - $23.60
    • (1 review)
      # sp11942
      Replacement Camshaft by Melling®. Melling offers a full line of camshafts for domestic cars & light trucks, import vehicles, marine and high performance engines.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $47.76 - $481.40
    • (0 reviews)
      # sp11946
      Replacement Camshaft Sprocket by Melling®. Timing gears and sprockets from Melling are provided as a part of a complete timing kit program including chain and sprocket kits, as well as for the individual gear and sprocket sales.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $5.84 - $105.10
    • (1 review)
      # sp15583
      Camshaft by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $51.68 - $857.92
    • (0 reviews)
      # sp13260
      Camshaft by DNJ Engine Components®. This camshaft is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit...
      Designed to replace your malfunctioning partsHelps get your vehicle back to its original performance
      $41.12 - $171.35
    • (0 reviews)
      # sp21453
      Camshaft by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet...
      Direct replacementManufactured to strict engineering quality standards
      $59.18 - $489.15
    • (0 reviews)
      # sp94706
      Engine Camshaft by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $83.15 - $125.87
    • (0 reviews)
      # sp34408
      Camshaft by AE®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running out to...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $179.87 - $260.55
    • (0 reviews)
      # mpn1857485
      Camshaft by Eurospare®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $166.28
    • (0 reviews)
      # mpn2348400
      Camshaft by Allmakes 4x4®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $163.57
    • (0 reviews)
      # sp4924
      Engine Camshaft by Auto 7®. Over the lifespan of your vehicle your engine's parts can become worn and in need of replacement. This can cause serious problems including power and fuel economy loss. Auto 7 has the quality parts for...
      Original equipment quality parts for Hyundai, KIA and GM Daewoo vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $25.45 - $317.71
    • (0 reviews)
      # sp36539
      Camshaft by Camko®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running out...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $225.49 - $521.07
    • (0 reviews)
      # sp38704
      Camshaft by FEBI®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running out...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $112.74 - $327.19
    • (0 reviews)
      # sp43155
      Camshaft by Omix-ADA®. 5 Year Limited Warranty. If your engine just doesn't have the pep it once had, or if you have a cylinder miss, your camshaft might be worn or have one or more wiped lobes. Replace that worn cam and restore...
      Same specs as OEM, for OEM style performanceWorks with stock valvetrain
      $101.49 - $173.97
    • (0 reviews)
      # mpn1461779129
      Cam Gear by OPGI®. This superior product is painstakingly designed to provide outstanding quality and value. Expertly crafted from first-rate materials to the highest standards it ensures maximum durability. This OPGI product will...
      Made from first-rate materialsDesigned to comply with high-quality standards
      $75.71
    • (0 reviews)
      # mpn1461794858
      Camshaft Thrust Plate by OPGI®. This superior product is painstakingly designed to provide outstanding quality and value. Expertly crafted from first-rate materials to the highest standards it ensures maximum durability. This OPGI...
      Made from first-rate materialsDesigned to comply with high-quality standards
      $45.68
    • (0 reviews)
      # sp43285
      Camshaft by Original Equipment®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $686.27 - $1,147.77
    • (0 reviews)
      # sp26863
      Camshaft by TRW®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running out...
      OE quality fluids from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $219.82 - $345.70
    • (0 reviews)
      # sp104497
      Engine Variable Timing Solenoid by Cardone Select®. With Variable Valve Timing actuator. Restore the steering performance of your vehicle with the remanufactured Rack and Pinion Assembly from Cardone. All of the technology and...
      100% computerized hydraulic testing for proper flow, leakage and performance ensures perfect fit and function100% new O-rings and lip seals ensure no leaking and long-lasting performance
      $15.53 - $227.31
    • (0 reviews)
      # mpn2653238002
      Engine Camshaft Oiler Control Valve by Dorman®. Valve Assembly. Constructed from high-quality materials for durability against cracking and splitting, Dorman's Engine Crankcase Breather Hose provides a long-lasting service life....
      Direct replacement for a proper fitHelps restore emissions system to proper operation
      $30.12
    • (0 reviews)
      # mpn2653434753
      Engine Camshaft Oiler Control Valve by Dorman®. Constructed from high-quality materials for durability against cracking and splitting, Dorman's Engine Crankcase Breather Hose provides a long-lasting service life. Replacement...
      Direct replacement for a proper fitHelps restore emissions system to proper operation
      $33.56
    • (0 reviews)
      # sp4188
      More like a kit than a single part, many of Dorman’s Engine Camshaft Synchronizers include a new camshaft position sensor in addition to the synchronizer. Installation is convenient-and performance is trouble-free. The rigorous...
      100% NewAlignment tool included for easy installation (where applicable)
      $33.67 - $224.21
    • (0 reviews)
      # mpn3073090220
      Engine Camshaft Bolt by Melling®. Melling recommends new camshaft timing gear bolts with every engine rebuild. Old bolts are subject to metal failure, bolt stretching, and worn threads. Bolts also tend to be lost or damaged during...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $5.36
    • (0 reviews)
      # sp8331
      Engine Camshaft Synchronizer by Spectra Premium®. Spectra Premium Cam Shaft Synchronizers feature in-house proven technology that provides increased accuracy by providing a stronger, more consistent signal and performance.
      Come as a complete assembly and include the camshaft position sensor - allows for easier one-step process installation100% endurance & life cycle tested to ensure they meet OEM specifications for fit, form and function that ensure proper operation and performance
      $10.29 - $203.59
    • (0 reviews)
      # mpn2449655600
      Engine Camshaft Follower by Mopar®. Designed utilizing the latest technology, this product by Mopar features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $20.98
    • (0 reviews)
      # sp28130
      Engine Camshaft Synchronizer by Standard®. Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running out to the auto...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $43.12 - $250.33
    • (0 reviews)
      # sp16372
      Camshaft Gear by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $22.96 - $111.06
    • (0 reviews)
      # sp16361
      Camshaft Oil Slinger by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $1.11
    • (0 reviews)
      # sp16374
      Camshaft Seal by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $4.10 - $9.02
    • (0 reviews)
      # sp16371
      Engine Camshaft Bearing by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $17.23 - $56.36
    • (0 reviews)
      # sp16373
      Camshaft Plug by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $1.23 - $1.48
    • (0 reviews)
      # sp96878
      Camshaft Thrust Plate by Omix-ADA®. The engine is the heart of your Jeep, but with many years and miles it may not be beating as strong as it once did. If you're hearing strange noises from under the hood, power is not what it used...
      Performs according to OEM specificationsMeets or exceeds OEM quality standards
      $3.84
    • (0 reviews)
      # sp9404
      Replacement Engine Camshaft Synchronizer by Cardone®. Automated test equipment verifies signal strength, correct polarity of wire harness, air gap, crank reluctor tooth size, as well as ignition coil and pickup performance. All...
      50-state emissions street legalThe finest quality at a great price
      $33.57 - $131.79
    • (0 reviews)
      # mpn431083
      Camshaft Synchronizer Alignment Tool Kit by Cardone Service Plus®. No Adjustable. Finish: Blue/Black/Gray/Yellow. Material: Plastic. Our 4-piece Camshaft Synchronizer Alignment Tool Kit is a valuable addition to every technicians...
      4-piece Camshaft Synchronizer Alignment Tool Kit is an economical, must-have tool for any mechanic.The Camshaft Synchronizer Alignment Tool Kit is essential to ensure proper installation and alignment of applicable Camshaft Synchronizers.
      $26.84
    • (0 reviews)
      # sp9403
      Replacement Engine Camshaft Position Sensor by Cardone®. Automated test equipment verifies signal strength, correct polarity of wire harness, air gap, crank reluctor tooth size, as well as ignition coil and pickup performance. O.E....
      50-state emissions street legalThe finest quality at a great price
      $15.50 - $247.84
    • (0 reviews)
      # sp24705
      Select Camshaft Position Sensor by Cardone®. CARDONE Select Engineered (CSE) Technology ensures that all distributors meet or exceed O.E. form, fit and function. The only NEW distributor in the aftermarket that is 100% computer...
      50-state emissions street legalThe finest quality at a great price
      $15.50 - $190.02
    • (0 reviews)
      # sp6846
      Camshaft Plug by Dorman®. Dorman’s Engine Camshaft Plugs are available in multiple styles, including Cup Type, Pilot Seal™, Reverse Taper, Concave, Quick-Seal® Rubber and Quick-Seal ® Copper. Our uniquely designed Pilot Seal...
      Many sizes availableConveniently available in packs of different quantities
      $1.53 - $13.91
    • (0 reviews)
      # sp25355
      Intermediate Shaft Expansion Plug by Dorman®. Dorman’s oversized, piggyback, and rubber expanding plugs eliminate the need to replace the entire pan, saving you time, labor and money. Many styles are available, including...
      Direct replacement for a proper fit every timeCoated for high corrosion resistance and a long service life
      $2.26 - $19.37
    • (1 review)
      # sp25861
      Cam Housing Plug by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $0.98 - $7.14
    • (0 reviews)
      # sp25862
      Cam Oiler Tube by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality fluids from top original equipment and aftermarket manufacturershe finest quality at a great price
      $58.18 - $76.55
    • (0 reviews)
      # sp25863
      Cam Plug by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $1.95 - $22.26
    • (0 reviews)
      # sp25868
      Camshaft Bolt by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturershe finest quality at a great price
      $3.84 - $6.66
    • (0 reviews)
      # mpn148417
      Camshaft Bracket Retainer by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $5.16
    • (1 review)
      # sp25870
      Camshaft O-Ring by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $1.34 - $11.15
    • (0 reviews)
      # mpn153053
      Camshaft Oil Line Fitting by Genuine®. 16 Per Engine. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you...
      $27.26
    • (0 reviews)
      # sp25874
      Camshaft Retainer Bolt by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $4.46 - $4.78
    • (0 reviews)
      # sp25875
      Camshaft Seal by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $1.24 - $23.69
    • (0 reviews)
      # mpn1692111481
      Camshaft Sleeve by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      $18.41
    • (0 reviews)
      # sp25878
      Camshaft Woodruff Key by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $11.49 - $14.85
    • (0 reviews)
      # sp25981
      Seal Ring by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $1.59 - $5.27
    • (0 reviews)
      # mpn1434725
      Camshaft Housing Gasket by Fel-Pro®. Material: High-Temperature Rubber-Coated Metal. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $11.06
    • (0 reviews)
      # sp4478
      Engine Camshaft Plug Set by Fel-Pro®. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel pins. Engineered using the latest technologies and...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $2.44 - $22.29
    • (0 reviews)
      # sp4480
      Engine Camshaft Seal by Fel-Pro®. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel pins. Engineered using the latest technologies and global...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $2.38 - $26.88
    • (0 reviews)
      # sp13263
      Camshaft Seal by DNJ Engine Components®. Protect your engine part from contaminants and prolong its service life with this premium DNJ seal. Rigorously manufactured from top-grade materials and expertly tested, this reliable...
      Designed to provide reliable sealing performanceProtects the engine part from contaminants and extends its life
      $1.49 - $10.68
    • (0 reviews)
      # sp5245
      Camshaft Thrust Button by Cloyes®. Keep your engine’s valvetrain in perfect time with Cloyes, the world leader in timing drive systems. No matter whether you need a timing gear or complete timing gear set, Cloyes has the OE...
      Maintains critical valve timingPrevents performance problems and possible engine damage that can result from incorrect timing
      $5.49 - $21.90
    • (0 reviews)
      # sp5244
      Camshaft Thrust Plate by Cloyes®. Keep your engine’s valvetrain in perfect time with Cloyes, the world leader in timing drive systems. No matter whether you need a timing gear or complete timing gear set, Cloyes has the OE...
      Maintains critical valve timingPrevents performance problems and possible engine damage that can result from incorrect timing
      $6.75 - $14.78
    • (0 reviews)
      # sp27721
      Camshaft End Cap by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950’s, brand...
      OE quality products from top original equipmentTop quality materials
      $3.68 - $10.79
    • (0 reviews)
      # mpn380729
      Camshaft Guide O-Ring by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950’s, brand...
      OE quality products from top original equipmentTop quality materials
      $1.94
    • (0 reviews)
      # mpn406828
      Camshaft Housing Seal by Beck Arnley®. Formed O'Ring Type. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in...
      OE quality products from top original equipmentTop quality materials
      $2.18
    • (0 reviews)
      # sp27722
      Camshaft O-Ring by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950’s, brand...
      OE quality products from top original equipmentTop quality materials
      $2.74 - $3.14




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    On Over Head Valve (OHV) engines, the block mounted cam actuates the valves via lifters that ride on the lobes, pushrods that transfer motion up to the cylinder head, and rocker arms that pivot on shafts or studs. Single Over Head Cam (SOHC) engines operate the valves using followers or pivoting rocker arms, while Double Over Head Cam (DOHC) engines, which have separate cams for the intake and exhaust valves, employ buckets between the cam and valves.

    The crankshaft drives the cam(s) using a timing chain and gears or timing belt and sprockets, at ½ crankshaft speed. The camshaft must be timed with the crankshaft so that valve opening and closing is perfectly synchronized with piston movement. On performance engines, valve timing can be fine-tuned by advancing or retarding the cam, to achieve desired power characteristics. Along with timing, valve lift and duration are also great engine power production factors and these too are determined by the cam’s lobe profile.

    Duration is the length of time that the valve is open. Duration is increased on performance camshafts to increase flow for more high rpm power. Lift is the distance the valve is raised from its seat. On vehicles with rocker arms the lobe lift can be increased by the rocker arm ratio, so there is a lobe lift and a valve lift specification. Lobe profile can also differ between solid lifter and hydraulic lifter camshafts. The former require a certain amount of clearance, or lash, during operation and require periodic adjustment. Hydraulic lifters have a plunger and spring inside an oil-filled cavity to compensate for expansion.

    Lifters can be further segregated according to whether they are flat tappets or rollers. Flat tappet cam lobes are ground with a taper to allow the lifter to rotate, otherwise the lobe and bottom of the lifter would quickly wear. Because the wear pattern is unique to each lobe, if components are reused they must be reinstalled in the same position. Flat tappet cams should always be installed with new lifters. The significantly reduced friction enables roller lifter cams to be much more durable than flat tappet designs, and as long as the roller wheels and bearings are in good shape, roller lifters can be reused.

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    Camshafts Reviews

    Average rating:  4.5  4.5 - 16 reviews
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    4.3 of 5
    Chevy Camshaft
    Shipping and service was great, unfortunately i received the incorrect camshaft and my needed type was back-ordered for unknown time.
    TPosted by Thomas (Graham, NC) / February 14, 2017
    2010 Chevy Cobalt
    Was this review helpful for you? Yes
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