OEM BMW Engine Components Online

2001 BMW Z3

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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.

Engine Camshaft

Part Number: 11-31-1-435-416
BMW BMW
Other Names: Camshaft, Camshaft Exhaust C113001
Backordered

Engine Piston Ring

Part Number: 11-25-7-506-253
BMW BMW
Other Names: Repair Kit Piston Rings C112520
Description: Set. Grade-00.
MSRP $122.80
$103.76

Engine Core Plug

Part Number: 07-11-9-937-293
BMW BMW
Other Names: Cover Lid C079999
Description: Location-Cylinder Head. All Required.
MSRP $0.69
$0.60

Engine Core Plug

Part Number: 11-12-1-427-243
BMW BMW
Other Names: Cover Lid C119900
Description: Location-Cylinder Head. All Required.
Backordered

Engine Timing Cover

Part Number: 11-14-1-436-720
BMW BMW
Other Names: Front Cover, Timing Cover, Lower Timing Cover, Timing Case Cover Bottom C11103015
MSRP $451.73
$348.82

Engine Core Plug

Part Number: 11-12-1-733-403
BMW BMW
Other Names: Cover Lid 889527
Description: Location-Cylinder Head. 22mm.
MSRP $8.39
$6.71

Engine Air Filter

Part Number: 13-72-1-730-449
BMW BMW
Other Names: Element, Air Filter, Air Filter Element C137012
Replaces: 13-72-1-730-946
MSRP $55.35
$44.98

Engine Valve Seat

Part Number: 11-12-1-435-924
BMW BMW
Other Names: Valve Seats, Valve Seat Ring Exhaust C11109520
Replaces: 11-12-1-435-923
Description: All models. Exhaust. 525i, 530i.
Backordered

Engine Cylinder Head Bolt

Part Number: 11-12-1-740-065
BMW BMW
Other Names: Set Bolt Cylinder Head C11109510
Description: 10 x 110mm. Set.
MSRP $58.96
$53.06

Engine Crankshaft Thrust Washer

Part Number: 11-21-1-743-459
BMW BMW
Positions: Upper
Other Names: Thrust Bearing, Guide Bearing Shell White C112032
Description: Bearing. 525i, 530i. Upper. White.
Backordered

Engine Water Pump Pulley

Part Number: 11-51-1-436-590
BMW BMW
Other Names: Pulley, Pulley C115032
Description: 325Ci & 330Ci. 2004-06. 525i. 528i, 530i. 2.5 & 3.0L without turbo, 2004-05. 2.5L.
MSRP $75.38
$65.49

Engine Valve Cover Grommet

Part Number: 11-12-1-437-395
BMW BMW
Other Names: Retainer Assembly Bushing, Valve Cover Bushing, Rubber Seal C118523
Replaces: 11-12-1-726-537
MSRP $1.67
$1.44
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