OHV valvetrains are the most complex, with lifters that ride on the camshaft lobes, pushrods that transfer motion up to the cylinder head, and rocker arms that pivot on shafts or studs in response to the pushrods and actuate the valves. OHC valvetrains can vary from the pivoting rocker type followers ordinarily used with SOHC (Single OHC) engines, to the simple buckets between the cam and valves common to DOHC (Double OHC) designs.

Reducing internal engine friction helps parts last longer and improves engine efficiency, for greater power and fuel mileage. To that end the lifters and cam followers in most modern engines have rollers that ride on the camshaft lobes instead of flat surfaces. Along with reducing friction, roller lifters also can be used with more aggressive cam lobe profiles that allow the valves to be opened faster. Unlike flat tappet cams, they can also be reused with a new cam. Flat tappet lifters develop specific wear patterns on the lobes, and must be replaced when a new cam is installed.

Valvetrain problems are often caused by excessive clearance. As cam lobes, lifters/followers, pushrods, and rocker arms wear, clearance is increased. Once clearance starts to increase, the pounding experienced by each component becomes greater as the lash opens and is taken up during valve operation. This can result in bent pushrods and broken rocker arms. Clicking noise in the valvetrain area can indicate excessive clearance, which can often be confirmed with a visual inspection. Check pushrods for a bent condition by rolling them on a flat surface. Inspect rocker arms for wear at the pivot and valve contact areas.

The valvetrain converts the rotating eccentric motion of the camshaft lobes to the reciprocating motion of the valves. Valvetrain design and componentry differs according to where the camshaft is located. On Over Head Valve (OHV) engines the camshaft is mounted in the cylinder block. On Over Head Cam (OHC) engines one or two camshafts are mounted on the cylinder head. Whatever the configuration, we have the replacement parts for a successful repair.

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    • (0 reviews)
      # sp9416
      Engine Valve Lifter 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...
      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
      $8.25 - $23.00
    • (0 reviews)
      # sp9418
      Engine Rocker Arm 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...
      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
      $5.62 - $17.25
    • (0 reviews)
      # sp21473
      Push Rod 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
      $2.52 - $18.96
    • (0 reviews)
      # sp21475
      Rocker Arm 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...
      Direct replacementManufactured to strict engineering quality standards
      $3.48 - $50.75
    • (0 reviews)
      # sp21478
      Rocker Arm Bridge 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...
      Direct replacementManufactured to strict engineering quality standards
      $3.54
    • (0 reviews)
      # sp21480
      Rocker Arm Kit 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...
      Direct replacementManufactured to strict engineering quality standards
      $6.42 - $47.24
    • (0 reviews)
      # sp21483
      Rocker Arm Retainer 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...
      Direct replacementManufactured to strict engineering quality standards
      $1.23 - $1.60
    • (0 reviews)
      # sp1390
      Rocker and Lifter 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 to...
      $2.32 - $110.44
    • (0 reviews)
      # sp27736
      Push Rod Tube Seal 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
      $1.70 - $2.36
    • (0 reviews)
      # sp5621
      Push Rod Gasket Set by Victor Reinz®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to find high prices...
      $7.88 - $14.80
    • (0 reviews)
      # sp5622
      Push Rod Cover Gasket Set by Victor Reinz®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to find high...
      $6.58 - $21.37
    • (0 reviews)
      # mpn440195
      Engine Valve Lifter (617-0019) 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...
      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
      $20.27
    • (0 reviews)
      # mpn440197
      Engine Valve Lifter 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...
      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
      $18.70
    • (0 reviews)
      # mpn512235
      Engine Rocker Arm (618-0055) by Auto 7®. Exhaust Side. 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...
      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
      $5.62
    • (0 reviews)
      # mpn463712
      Engine Rocker Arm (618-0027) by Auto 7®. Exhaust Side. 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...
      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
      $16.35
    • (0 reviews)
      # mpn463713
      Engine Rocker Arm (618-0049) by Auto 7®. Intake Side. 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...
      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
      $17.25
    • (0 reviews)
      # mpn350589795
      Engine Rocker Arm by Auto 7®. Exhaust Side. 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...
      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
      $9.06
    • (0 reviews)
      # mpn437640
      Engine Rocker Arm 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...
      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
      $14.49
    • (0 reviews)
      # mpn437641
      Engine Rocker Arm by Auto 7®. Exhaust Side. 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...
      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
      $11.69
    • (0 reviews)
      # mpn440189
      Engine Valve Lifter 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...
      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
      $15.92
    • (0 reviews)
      # mpn440190
      Engine Valve Lifter (617-0008) 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...
      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
      $11.85
    • (0 reviews)
      # mpn440192
      Engine Valve Lifter (617-0011) 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...
      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
      $13.27
    • (0 reviews)
      # mpn440196
      Engine Valve Lifter 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...
      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
      $16.13
    • (0 reviews)
      # mpn440198
      Engine Valve Lifter (617-0031) 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...
      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
      $16.59
    • (0 reviews)
      # mpn440199
      Engine Valve Lifter (617-0032) 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...
      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
      $23.00
    • (0 reviews)
      # mpn437639
      Front Engine Rocker Arm by Auto 7®. Intake Side. 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...
      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
      $7.98
    • (0 reviews)
      # mpn440191
      Engine Valve Lifter (617-0009) 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...
      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
      $8.25
    • (0 reviews)
      # mpn440193
      Engine Valve Lifter (617-0013) 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...
      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
      $12.14
    • (0 reviews)
      # mpn440194
      Engine Valve Lifter 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...
      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
      $21.95
    • (0 reviews)
      # mpn440201
      Engine Valve Lifter (617-0034) 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...
      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
      $15.13
    • (0 reviews)
      # mpn63992
      Lower Clutch Push Rod by Goodmark®. With Nut. Some other restoration sheet metal companies may carry popular panels like hoods, fenders and quarter panels, but far too often they come up empty when you need supporting parts like...
      Faithful reproduction of the original partHighest quality sheet metal parts available
      $22.91
    • (0 reviews)
      # mpn63973
      Lower Clutch Push Rod Lever by Goodmark®. With Pushrood and Swivel. Some other restoration sheet metal companies may carry popular panels like hoods, fenders and quarter panels, but far too often they come up empty when you need...
      Faithful reproduction of the original partHighest quality sheet metal parts available
      $18.54
    • (0 reviews)
      # mpn62345760
      Engine Push Rod (RP-3093) by Sealed Power®. 7.8180" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $2.92
    • (0 reviews)
      # mpn62361193
      Engine Rocker Arm (R-861) by Sealed Power®. Left Location. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Direct replacementManufactured to strict engineering quality standards
      $10.76
    • (0 reviews)
      # mpn62361194
      Engine Rocker Arm (R-862) by Sealed Power®. Right Location. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Direct replacementManufactured to strict engineering quality standards
      $10.75
    • (0 reviews)
      # mpn62361195
      Engine Push Rod (RP-3167) by Sealed Power®. 6.9050" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $3.16
    • (0 reviews)
      # mpn62361196
      Engine Push Rod (RP-3176) by Sealed Power®. Standard Length. 8.3500" Overall Length, Standard Size. With Non-Adjustable Rocker Arms. Designed utilizing the latest technology, this product by Sealed Power features premium quality...
      Direct replacementManufactured to strict engineering quality standards
      $4.14
    • (0 reviews)
      # mpn62364845
      Engine Rocker Arm (R-854A) 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...
      Direct replacementManufactured to strict engineering quality standards
      $12.75
    • (0 reviews)
      # mpn62364846
      Engine Push Rod by Sealed Power®. 9.7010" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your...
      Direct replacementManufactured to strict engineering quality standards
      $3.60
    • (0 reviews)
      # mpn62364847
      Engine Push Rod (RP-3183) by Sealed Power®. Standard Length. 10.1640" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than...
      Direct replacementManufactured to strict engineering quality standards
      $3.62
    • (0 reviews)
      # mpn62376183
      Engine Rocker Arm (R-905A) by Sealed Power®. Stamped Steel. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Direct replacementManufactured to strict engineering quality standards
      $10.75
    • (0 reviews)
      # mpn62376184
      Engine Push Rod by Sealed Power®. 9.5300" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your...
      Direct replacementManufactured to strict engineering quality standards
      $3.14
    • (0 reviews)
      # mpn62376185
      Engine Push Rod (RP-3194) by Sealed Power®. 7.5000" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $3.74
    • (0 reviews)
      # mpn62379891
      Engine Push Rod (RP-3160) by Sealed Power®. 8.5740" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $4.14
    • (0 reviews)
      # mpn62379892
      Engine Push Rod (RP-3252) by Sealed Power®. 8.6400" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $3.80
    • (0 reviews)
      # mpn62385499
      Engine Push Rod (RP-3211) by Sealed Power®. 9.0000" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $5.30
    • (0 reviews)
      # mpn62385500
      Engine Push Rod (RP-3235) by Sealed Power®. 9.7440" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $4.51
    • (0 reviews)
      # mpn62385501
      Engine Push Rod (RP-3236) by Sealed Power®. 9.5100" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $3.10
    • (0 reviews)
      # mpn62520819
      Engine Push Rod (RP-3178) by Sealed Power®. 10.2220" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect...
      Direct replacementManufactured to strict engineering quality standards
      $4.85
    • (0 reviews)
      # mpn62520820
      Engine Push Rod (RP-3200) by Sealed Power®. 9.6500" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $5.18
    • (0 reviews)
      # mpn62521417
      Engine Rocker Arm (R-890) 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...
      Direct replacementManufactured to strict engineering quality standards
      $30.82
    • (0 reviews)
      # mpn62521426
      Engine Push Rod by Sealed Power®. 6.4000" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your...
      Direct replacementManufactured to strict engineering quality standards
      $18.96
    • (0 reviews)
      # mpn62522060
      Engine Rocker Arm (R-1092) 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...
      Direct replacementManufactured to strict engineering quality standards
      $22.10
    • (0 reviews)
      # mpn62522063
      Engine Rocker Arm (R-913) 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...
      Direct replacementManufactured to strict engineering quality standards
      $11.47
    • (0 reviews)
      # mpn62522065
      Engine Push Rod by Sealed Power®. 8.4950" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your...
      Direct replacementManufactured to strict engineering quality standards
      $3.96
    • (0 reviews)
      # mpn62522067
      Engine Push Rod (RP-3285) by Sealed Power®. 7.9890" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $4.24
    • (0 reviews)
      # mpn62522068
      Engine Push Rod (RP-3337) by Sealed Power®. 5.3300" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $4.24
    • (0 reviews)
      # mpn62522361
      Engine Push Rod (RP-3340) by Sealed Power®. 7.0290" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $4.30
    • (0 reviews)
      # mpn62522362
      Engine Push Rod (RP-3341) by Sealed Power®. 7.5180" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...
      Direct replacementManufactured to strict engineering quality standards
      $6.15
    • (0 reviews)
      # mpn62522364
      Engine Push Rod by Sealed Power®. 7.3880" Overall Length, Standard Size. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your...
      Direct replacementManufactured to strict engineering quality standards
      $6.82




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    As the engine runs and parts expand from heat, valvetrain clearances can change. There are hydraulic valvetrains with mechanisms to compensate for these changes, and mechanical valvetrains that have a specified clearance, or lash, that ensures the valves can fully close. OHV valvetrains have hydraulic lifters while OHC valvetrains have hydraulic lash adjusters. The plungers, check valves and springs in these devices are supplied with pressurized oil from the pump and maintain zero lash in the valvetrain. The clearance in mechanical valvetrains must be checked periodically and provisions for adjustment are included.

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