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.

    17128662841 - : Hose Radiator Engine 171040 for BMW Image

    Hose Radiator Engine 171040

    $112.98
    MSRP $141.26
    Save $28.28
    20% Off
    12515A41793 - : Engine Wiring Harness.Ignition 121051MO for BMW Image

    Engine Wiring Harness.Ignition 121051MO

    $202.68
    MSRP $239.91
    Save $37.23
    15.5% Off
    11438446010 - : Ventilation Line Engine 9100G82GT3 for BMW Image

    Ventilation Line Engine 9100G82GT3

    $325.27
    MSRP $342.75
    Save $17.48
    5.1% Off
    12518417820 - : Engine Wiring Harness 9100000P58 for BMW Image

    Engine Wiring Harness 9100000P58

    $1,333.28
    MSRP $1,404.93
    Save $71.65
    5.1% Off
    11158623083 - : Engine Ventilation Line 111060 for BMW Image

    Engine Ventilation Line 111060

    $97.09
    MSRP $114.03
    Save $16.94
    14.9% Off
    22113421295 - : Engine Mount Left 229990 for BMW Image

    Engine Mount Left 229990

    $250.46
    MSRP $271.76
    Save $21.30
    7.8% Off
    51717169419 - : Bulkhead Engine Compartment 517187 for BMW Image

    Bulkhead Engine Compartment 517187

    $178.55
    MSRP $208.19
    Save $29.64
    14.2% Off
    11005A42449 - : Rp Remanufactured Engine 110519 for BMW Image

    Rp Remanufactured Engine 110519

    $6,935.50
    MSRP $7,514.08
    Save $578.58
    7.7% Off
    22116859411 - : Engine Mount Left 221011 for BMW Image

    Engine Mount Left 221011

    $147.69
    MSRP $186.10
    Save $38.41
    20.6% Off
    11005A422A1 - : Rp Remanufactured Engine 110519 for BMW Image

    Rp Remanufactured Engine 110519

    $11,710.82
    MSRP $12,869.03
    Save $1,158.21
    9% Off
    64539312779 - : Sealing Engine Compartment 648520 for BMW Image

    Sealing Engine Compartment 648520

    $21.41
    MSRP $24.95
    Save $3.54
    14.2% Off
    51757163280 - : Engine Encapsulation Front 517510 for BMW Image

    Engine Encapsulation Front 517510

    $182.17
    MSRP $215.64
    Save $33.47
    15.5% Off

    No results found for "engine". Here are some helpful search tips:

    • Search by a part name. Example: water pump.
    • Be less specific. Example: brake instead of ceramic brake.
    • Remove information such as make, year or model.
    • Can't find the part you are looking for? Contact us and we'll find it for you!