Engine Parts

Your engine is made up of various parts and components that work together to generate power and keep your vehicle moving. Some of the key components of your engine include:

  • Pistons
  • Cylinders
  • Valves
  • Crankshaft
  • Camshaft
  • Timing belt or chain
  • Oil pump

How the Engine Works

When you turn the key in your ignition, the battery sends an electrical signal to the starter motor, which turns the engine over. Fuel and air are then mixed together in the engine's cylinders, and a spark ignites the mixture, causing a small explosion. This explosion pushes the pistons down, which turns the crankshaft and generates power.

As the engine runs, oil is circulated through the engine to lubricate and cool the moving parts. The timing belt or chain ensures that the valves and pistons move in sync, and the camshaft controls the timing and duration of the valves opening and closing.

Maintaining Your Engine

To keep your engine running smoothly, it's important to perform regular maintenance and replace worn or damaged parts as needed. Some of the most important engine maintenance tasks include:

  • Regular oil changes
  • Replacing the timing belt or chain at the recommended intervals
  • Checking and replacing the spark plugs
  • Replacing the air and fuel filters
  • Checking and maintaining proper fluid levels

Shop and Save on Genuine BMW Engine Parts

At BMW Parts World, we offer a wide selection of high-quality OEM engine parts and components for a variety of BMW models. Whether you need a new timing belt, spark plugs, or air filter, we have the parts you need. Please contact us with any additional questions.

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Radiator Coolant Hose

Radiator to Water Pipe.
$21.08
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Slide Rails

745i, 745Li. Left. X5. Cylinders 5-8. 750 series. 650i. All models. 550i. 645Ci.
$46.94
MSRP $60.56
Save $13.62
22.5% Off
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Upper Hose

530i, 530i xDrive. Primary. 2017-19, outer radiator, rear. Charge Air Cooling. Cooler to Connector. Inlet. From Radiator Coolant Hose.
$69.47
MSRP $94.16
Save $24.69
26.2% Off
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Filler Tube

With m model.
$72.82
MSRP $95.61
Save $22.79
23.8% Off
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Air Filter

X7. 4.4l. With m series. X5. 4.4l. Bank 1. X6. 4.4l. Cylinders 1-4. M50i, m60i. 4.4L twin turbo, with m50i. Cylinder 1,2,3,4. M...
$31.26
MSRP $47.19
Save $15.93
33.8% Off
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HVAC Heater Hose

Inlet. Auxiliary Water Pump to Heater Core.
$42.81
MSRP $55.24
Save $12.43
22.5% Off
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HVAC Heater Hose

Engine to Water Valve.
$47.34
MSRP $54.88
Save $7.54
13.7% Off
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Outlet Hose

2017-18, with hybrid. Auxiliary Water Pump. Inlet. From ATF Cooler Outlet.
$88.76
MSRP $120.31
Save $31.55
26.2% Off
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Vent Tube

Inner radiator, tank side. Without m model, inner radiator, 2024-26. 4.4L twin turbo, inner radiator, 2023-26. M, m competition, hoses,...
$46.73
MSRP $60.29
Save $13.56
22.5% Off
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Lower Hose

M240i, M240i xDrive. Auto trans. 440i, 440i xDrive. Convertible. 440i, 440ix. Without m sport package. 2017-19. 2017-20. Exc.M Sport...
$179.88
MSRP $245.87
Save $65.99
26.8% Off
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Suspension Sub-Frame Cross-Member

X4. 3.0l. X3. Awd. M competition.
$1,345.71
MSRP $1,773.00
Save $427.29
24.1% Off
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Rocker Arms

$45.39
MSRP $58.56
Save $13.17
22.5% Off

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