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.

17118049255 - : Bracket for BMW Image

Bracket

Auxiliary Radiator. Engine Cooling. With m model, auxiliary. 4.4L turbo, with M6, auxiliary.
$60.01
MSRP $72.74
Save $12.73
17.5% Off
17117847295 - : Mount Bracket Damper for BMW Image

Mount Bracket Damper

Auxiliary Radiator. Engine Cooling. With m model, auxiliary. 4.4L turbo, with M6, auxiliary.
$6.66
MSRP $8.33
Save $1.67
20% Off
18302464494 - : M Performance Silencer System for BMW Image

M Performance Silencer System

From the racetrack straight to the road: the lightweight valve exhaust system with a titanium rear silencer generates a highly emotive...
$5,522.99
MSRP $6,490.00
Save $967.01
14.9% Off
51647266323 - : Bracket for BMW Image

Bracket

2014-21, lower. Engine cooler duct, lower. Sedan/wagon, without M3, brake air duct, lower.
$43.85
MSRP $53.15
Save $9.30
17.5% Off
61136917404 - : Fuse for BMW Image

Fuse

Engine compartment, 15 amp. Modules & fuses, 15 amp. Control module box, 15 amp. Coupe & convertible, 15 amp. Trunk, 15 amp. Power...
$1.19
MSRP $1.48
Save $0.29
19.6% Off
61136917403 - : Mini Fuse for BMW Image

Mini Fuse

Modules & fuses, 10 amp. Control module box, 10 amp. Engine compartment, 10 amp. Coupe & convertible, 10 amp. Trunk, 10 amp. Passenger...
$1.19
MSRP $1.48
Save $0.29
19.6% Off
17117566339 - : Radiator for BMW Image

Radiator

3 series. Manual trans. Without turbo. N51n (sulev). 128i. Convertible. Engine code n51. Coupe.
$769.76
MSRP $929.67
Save $159.91
17.2% Off
18407556989 - : Exhaust Manifold for BMW Image

Exhaust Manifold

3 series. Cylinders 1-3. N51n (sulev). 128i. Convertible. Front (cyl 1-3). Engine code n51.
$1,238.85
MSRP $1,632.21
Save $393.36
24.1% Off
17117537292 - : Radiator for BMW Image

Radiator

3 series. Auto trans. Without turbo. N51n (sulev). 128i. Convertible. Engine code n51. Coupe.
$755.40
MSRP $912.32
Save $156.92
17.2% Off
18407556990 - : Exhaust Manifold for BMW Image

Exhaust Manifold

3 series. Cylinders 4-6. N51n (sulev). 128i. Convertible. Rear (cyl 4-6). Engine code n51.
$1,238.85
MSRP $1,632.21
Save $393.36
24.1% Off
17127627104 - : Radiator Coolant Hose for BMW Image

Radiator Coolant Hose

M Sport Package. Auxiliary Radiator. Engine Oil Cooling. 2017-18, main. 2014-16, main, with m.
$61.78
MSRP $79.71
Save $17.93
22.5% Off
61146807487 - : Distribution Box for BMW Image

Distribution Box

Engine compartment. Without m, 2022-25. Power distribution box, front, without m50i or m model.
$80.94
MSRP $106.28
Save $25.34
23.8% Off

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