BMW 320i Engine Parts

The turbocharged four-cylinder engine in your BMW 320i is made up of many parts, all of which work together to produce the power your compact executive car needs to move on down the road.

The core of it all is the engine block. Other parts connect to it, and it's home to the combustion that creates the power that moves your wheels. Engine pistons pump in order to pressurize the air-and-fuel mixture inside the engine block, while a cylinder head seals the gases inside. The spark-plugs that kindle ignition connect to that cylinder head. The camshaft syncs with the crankshaft to open and close the valves as needed, with the crankshaft using the pistons' pumping motion to produce the rotary motion that moves your drivetrain. An oil pan holds the motor oil that lubricates your engine, while rings, gears, gaskets, and bearings keep everything connected.

How to Spot Faulty Engine Parts

Harsh driving conditions and time can take a toll on even the best engine parts, though. Signs of failure include:

  • Repeated engine stalls
  • Problems accelerating
  • Rough engine idling
  • Worsening fuel efficiency
  • Excessive exhaust smoke
  • The "Check Engine" dash light comes on
  • Save Up to 30% When You Buy Genuine BMW Engine Parts From Our Online Parts Store

    The average cost to replace an engine in your BMW 320i is between $5,000 and $7,000. With that kind of money at stake, it's a smart choice to replace a faulty part when you first notice signs of trouble, rather than risking complete engine failure. Our online BMW parts store sells the parts that BMW made specifically for your car, so you can depend on them to fit properly and perform as they should. Even better, we sell those parts at a deep discount to the MSRP -- so you save money and time by shopping with us. Buy today and we'll get your order shipped right out. Need your parts in a hurry? Contact us and ask about our overnight shipping options.

    11538645481 - : Engine Coolant Hose for BMW Image

    Engine Coolant Hose

    From 04/2014. Engine Water Pump. Inlet. From Thermostat. 2012-16. 2.0L turbo. 2014-16. 2015-16.
    $78.07
    MSRP $104.34
    Save $26.27
    25.2% Off
    11277632111 - : Engine Balance Shaft for BMW Image

    Engine Balance Shaft

    Assembly.
    $1,052.69
    MSRP $1,265.25
    Save $212.56
    16.8% Off
    11377628306 - : Engine Rocker Arm for BMW Image

    Engine Rocker Arm

    $79.64
    MSRP $99.58
    Save $19.94
    20% Off
    11377628304 - : Engine Rocker Arm for BMW Image

    Engine Rocker Arm

    $79.64
    MSRP $99.58
    Save $19.94
    20% Off
    51487295801 - : Engine Compartment Insulation for BMW Image

    Engine Compartment Insulation

    Sedan,.
    $293.71
    MSRP $353.02
    Save $59.31
    16.8% Off
    11121733403 - : Engine Core Plug for BMW Image

    Engine Core Plug

    Location-Cylinder Head. 22mm.
    $8.65
    MSRP $9.24
    Save $0.59
    6.4% Off
    11377628307 - : Engine Rocker Arm for BMW Image

    Engine Rocker Arm

    $79.64
    MSRP $99.58
    Save $19.94
    20% Off
    13717588501 - : Engine Cover Insulator for BMW Image

    Engine Cover Insulator

    $8.00
    MSRP $9.61
    Save $1.61
    16.8% Off
    17127596839 - : Engine Coolant Hose for BMW Image

    Engine Coolant Hose

    ATF Cooling. 4 series. Without sport line. 2015-16, #3. 2014-16, #3. 2012-16, with auto trans, #3.
    $107.60
    MSRP $134.53
    Save $26.93
    20% Off
    11418663609 - : Engine Timing Chain for BMW Image

    Engine Timing Chain

    Oil Pump. 320i xDrive. 328i xDrive. X4. 28i series.
    $66.45
    MSRP $95.39
    Save $28.94
    30.3% Off
    17127609534 - : Engine Coolant Hose for BMW Image

    Engine Coolant Hose

    ATF Cooling. Bypass.
    $79.70
    MSRP $99.65
    Save $19.95
    20% Off

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