OEM BMW Engine Components Online

17428641964 - : Engine Cooling Fan Assembly for BMW Image

Engine Cooling Fan Assembly

$920.91
MSRP $1,083.42
Save $162.51
15% Off
11538674931 - : Engine Coolant Pipe O-Ring for BMW Image

Engine Coolant Pipe O-Ring

$6.80
MSRP $8.50
Save $1.70
20% Off
11617549715 - : Engine Crankcase Vent Valve for BMW Image

Engine Crankcase Vent Valve

From 09/2006.
$170.06
MSRP $212.58
Save $42.52
20% Off
11421713597 - : Engine Oil Pump Seal for BMW Image

Engine Oil Pump Seal

Small Pipe to Pump. 4.4L twin turbo. 4.4L, without M5. Dipstick.
$6.80
MSRP $8.50
Save $1.70
20% Off
11247589671 - : Engine Connecting Rod Bolt for BMW Image

Engine Connecting Rod Bolt

To 11/2018. To 04/2009. 9 x 48mm. 9 x 47mm.
$6.62
MSRP $8.27
Save $1.65
20% Off
12141744657 - : Engine Control Module (ECM) for BMW Image

Engine Control Module (ECM)

840. 740iL. From 12/1994. Reman.
Backordered
12148489465 - : Engine Control Module (ECM) for BMW Image

Engine Control Module (ECM)

Optional.
$2,048.26
MSRP $2,409.72
Save $361.46
15% Off
13527636185 - : Engine Timing Chain Tensioner for BMW Image

Engine Timing Chain Tensioner

$33.16
MSRP $41.45
Save $8.29
20% Off
11148666846 - : Engine Cover Upper Cover for BMW Image

Engine Cover Upper Cover

$54.40
MSRP $68.00
Save $13.60
20% 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!


Understanding BMW Engine Components and Their Role

Every BMW 3 Series and BMW X5 relies on a finely tuned set of engine components to deliver confident power and precise control. Each drive feels smooth because every piece, from the pistons to the valves, works in perfect rhythm. These parts define BMW’s engineering excellence and keep performance consistent over time. At BMW Auto Parts Online, we take pride in helping owners maintain that quality by providing genuine BMW replacements that meet exact factory specifications.

How BMW Engine Components Work

Engine components form the backbone of your BMW’s performance system. Parts such as the camshaft, crankshaft, and connecting rods collaborate to turn fuel and air into usable motion. This coordination is what keeps acceleration sharp and power delivery reliable. Genuine BMW components ensure these functions remain precise, while aftermarket parts often introduce inconsistencies that can reduce performance and fuel efficiency.

Why Engine Components Break Down

Continuous heat, vibration, and friction gradually wear down even the strongest materials. When maintenance intervals are skipped or lower-grade parts are installed, these stresses multiply. Small gaps or improper fits in non-genuine parts can cause premature wear and imbalance. Replacing damaged or aging components with genuine BMW parts, along with a properly matched spark plug, keeps the engine clean, efficient, and responsive under all driving conditions.

When Replacement Becomes Necessary

Common signs of worn engine components include rattling noises, rough idling, and poor fuel economy. These symptoms indicate internal wear that requires prompt attention. Most drivers notice these issues after extended mileage or heavy use. At BMW Auto Parts Online, we recommend timely replacement using authentic BMW components to preserve the performance and reliability your vehicle was designed to deliver.