The pistons are the mechanical components that bear the pressure from combustion that is ultimately turned into vehicle motion. Piston rings form the seal between the pistons and cylinder walls, and the connecting rods connect the pistons to the crankshaft, converting the reciprocating motion of the pistons to the rotating motion of the crankshaft, which turns the gears in the transmission, the axle shafts, and ultimately the wheels.

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    • (0 reviews)
      # sp25975
      Piston Ring Set 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
      $66.07 - $71.39
    • (0 reviews)
      # sp13282
      Piston Ring Set by DNJ Engine Components®. This premium product 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...
      Designed to replace your malfunctioning partsHelps get your vehicle back to its original performance
      $19.18 - $161.07
    • (0 reviews)
      # sp13283
      Piston Set by DNJ Engine Components®. Repair your vehicle to its optimal performance with this premium piston set designed by DNJ. This superb set includes everything you may need for successful installation. Manufactured with the...
      Designed to restore your vehicle's original performanceIncludes all you may need to replace your worn out parts
      $40.97 - $435.93
    • (0 reviews)
      # sp21468
      Piston 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 or...
      Direct replacementManufactured to strict engineering quality standards
      $12.20 - $206.19
    • (0 reviews)
      # sp21471
      Piston Ring Set 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
      $6.18 - $492.62
    • (0 reviews)
      # sp16375
      Engine Connecting Rod 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
      $26.65 - $57.75
    • (0 reviews)
      # sp16449
      Engine Piston 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
      $38.49 - $384.98
    • (1 review)
      # sp106875
      Engine Piston Ring Set 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
      $14.49 - $142.15
    • (0 reviews)
      # sp16450
      Engine Piston and Pin 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
      $58.19 - $85.88
    • (0 reviews)
      # sp16452
      Piston Ring Kit 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
      $142.15
    • (0 reviews)
      # sp16451
      Piston and Rod Kit by Crown®. Does Not Include Connecting Rod. Standard Size. 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...
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $222.11
    • (0 reviews)
      # sp5939
      Engine Connecting Rod 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...
      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
      $38.78 - $61.65
    • (0 reviews)
      # sp4932
      Engine Piston 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
      $7.63 - $151.29
    • (0 reviews)
      # sp5996
      Engine Piston Ring Set 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...
      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
      $7.63 - $151.29
    • (0 reviews)
      # mpn490719
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $45.74
    • (0 reviews)
      # mpn459055
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $52.08
    • (0 reviews)
      # mpn437635
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $87.05
    • (0 reviews)
      # mpn435666
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $101.92
    • (0 reviews)
      # mpn435665
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $20.76
    • (0 reviews)
      # mpn435663
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $35.67
    • (0 reviews)
      # mpn435665
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $20.76
    • (0 reviews)
      # mpn437637
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $116.44
    • (0 reviews)
      # mpn435662
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $72.92
    • (0 reviews)
      # mpn437636
      Piston Ring Set 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 vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $71.61
    • (0 reviews)
      # mpn1620783
      Piston by Mahle®. 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
      $79.99
    • (0 reviews)
      # mpn260012037
      Piston by Mahle®. 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
      $72.14
    • (0 reviews)
      # mpn1622500
      Piston by Mahle®. 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
      $32.94
    • (0 reviews)
      # mpn1620784
      Piston by Mahle®. 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
      $37.14
    • (0 reviews)
      # mpn260012040
      Piston by Mahle®. 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
      $93.93
    • (0 reviews)
      # mpn1622526
      Piston by Mahle®. 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
      $63.09
    • (0 reviews)
      # sp6001
      Pistons by Mahle®. 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
      $48.54 - $875.49
    • (0 reviews)
      # mpn260012278
      Piston Ring Set by Mahle®. Designed utilizing the latest technology, this product by Mahle features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $36.30
    • (0 reviews)
      # sp36206
      Piston & Cylinder Set with Rings by Brazil®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $406.31 - $665.01
    • (0 reviews)
      # sp39362
      Piston Ring Set by Goetze®. 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
      $15.45 - $46.62
    • (0 reviews)
      # mpn2574001
      Piston by KS®. 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...
      $197.03
    • (0 reviews)
      # mpn2573999
      Piston by KS®. 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...
      $176.89
    • (0 reviews)
      # sp96748
      Piston Ring Set by NPR®. 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
      $20.74 - $110.09
    • (0 reviews)
      # sp42971
      Piston Set by NPR®. 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
      $79.89 - $169.34
    • (0 reviews)
      # mpn1209975
      Connecting Rod Bolt and Nut by Omix-ADA®. Size: 0.375" x 24. Direct Fit. Nut and bolt.
      $5.49
    • (0 reviews)
      # mpn1179966
      Piston by Omix-ADA®. Direct Fit. 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...
      Performs according to OEM specificationsMeets or exceeds OEM quality standards
      $40.38
    • (0 reviews)
      # mpn1209968
      Piston by Omix-ADA®. Direct Fit. 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...
      Performs according to OEM specificationsMeets or exceeds OEM quality standards
      $58.47
    • (0 reviews)
      # mpn41188854
      Piston 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 be, or if...
      Performs according to OEM specificationsMeets or exceeds OEM quality standards
      $38.75
    • (0 reviews)
      # mpn35822348
      Piston Ring Set by Omix-ADA®.
      $178.41
    • (0 reviews)
      # mpn1179988
      Piston Ring Set by Omix-ADA®. OE Style. Direct Fit.
      $59.78
    • (0 reviews)
      # mpn1169586
      Piston Ring Set by Omix-ADA®.
      $43.41
    • (0 reviews)
      # mpn1180000
      Piston Ring Set by Omix-ADA®. Direct Fit.
      $69.88
    • (0 reviews)
      # mpn898410294
      Piston Ring Set by Omix-ADA®. Direct Fit.
      $133.81
    • (0 reviews)
      # mpn35822349
      Piston Ring Set by Omix-ADA®. Direct Fit.
      $180.67
    • (0 reviews)
      # mpn1226180
      Steel Connecting Rod by Omix-ADA®. Direct Fit.
      $56.92
    • (0 reviews)
      # mpn1209973
      Steel Connecting Rod by Omix-ADA®. Direct Fit.
      $56.92
    • (0 reviews)
      # sp44279
      Piston Ring Set by Professional Parts Sweden®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $35.23
    • (0 reviews)
      # sp21470
      Piston Pin Bushing 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
      $2.55 - $34.00
    • (0 reviews)
      # mpn3105900615
      Connecting Rod Lock Nut 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
      $0.22
    • (0 reviews)
      # sp6847
      Connecting Rod Nut by Dorman®. Engine Connecting Rod Nuts are suitable for a variety of applications. All our Engine Connecting Rod Nuts are manufactured for high corrosion resistance and a long service life.
      High-quality steel constructionDirect replacement for a proper fit
      $11.04
    • (0 reviews)
      # sp15584
      Connecting Rod 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
      $2.99 - $9.14
    • (0 reviews)
      # sp26046
      Wrist Pin Bushing 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
      $23.16
    • (0 reviews)
      # sp13281
      Piston Pin Bushing Set by DNJ Engine Components®. This premium product 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...
      Designed to replace your malfunctioning partsHelps get your vehicle back to its original performance
      $6.25 - $14.95
    • (0 reviews)
      # sp16378
      Engine Connecting Rod Bolt by Crown®. Includes Nut. 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...
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $3.27
    • (0 reviews)
      # sp16379
      Connecting Rod Nut 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
      $1.06
    • (0 reviews)
      # mpn1951180772
      Connecting Rod Bolt by Elring®. 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
      $4.48




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    Pistons are cast or forged from aluminum alloy. The forging process increases strength and resistance to damage, and forged pistons are generally used for extreme conditions like racing. The piston rings fit into grooves near the top of the piston, called the head. The most common construction is 2 compression rings with a 3rd ring below them for oil control. Most oil rings consist of upper and lower rails with a center expander to maintain tension.

    A connecting rod consists of a small end, attached to the piston by a wrist pin, and a big end, which is split so it can be attached to the crankshaft throw, separated by the beam. Today most connecting rods are forged from steel or cast from powder metal. The wrist pin can be a press fit in the rod small end bore, or it can be “fully floating” and free to turn. The bottom part of the split big end bore is called the rod cap. The bore is machined to accept plain bearings that ride on the crank journal on a thin film of pressurized oil. The cap is retained by bolts that thread into the rod or by bolts and nuts.

    The piston skirt is the area between the bottom ring groove and the bottom of the piston. This is the bearing surface of the piston that contacts the cylinder wall. Wear in this area, called “scuffing”, can be caused by lack of lubrication or lack of clearance due to bore distortion. To help prevent scuffing, many pistons today come with moly coated skirts to reduce friction. It is common for the connecting rod big end bore to stretch due to the millions of direction reverses it undergoes during normal operation. Rods can also become bent or twisted, evidenced by abnormal wear patterns on pistons skirts and rod bearings.

    Ring material depends on application and the ring’s location on the piston. To handle the heat, top rings are made of ductile iron or steel with a face coating of plasma molybdenum or chromium. Chrome-faced rings are very durable and ideal for engines operated in dusty conditions. Second rings are not exposed to as much heat, and can be made of cast iron. For optimal ring seal, the cylinder wall finish must match the type of ring. Compression rings are split to facilitate installation, leaving a gap when the piston and rings are installed in the cylinder. This gap must be within specs or excessive blow-by can result.

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    Pistons, Rings & Connecting Rods Reviews

    Average rating:  5  5 - 12 reviews
    4.5 of 5
    Great.
    Really easy to installation! That's really great!
    LPosted by Leakhena (Long Beach, CA) / June 10, 2016
    2003 Mitsubishi Evolution
    Was this review helpful for you? Yes
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