OEM BMW Air Filters Online

51137497231 - : Radiator Shutter Assembly for BMW Image

Radiator Shutter Assembly

X3. M40i.
$286.21
MSRP $357.76
Save $71.55
20% Off
51115A6EA71 - : Trim Bezel for BMW Image

Trim Bezel

With m sport pkg, bumper cover & trim. With m sport trim, bumper cover & trim.
$48.44
MSRP $60.55
Save $12.11
20% Off
64221384088 - : Vent Grille for BMW Image

Vent Grille

Side. Front trim, sedan. Front trim, station wagon.
Backordered
51745A1DA48 - : Radiator Shutter Assembly for BMW Image

Radiator Shutter Assembly

Without m, m competition, all. X3. Upper. Sdrive30i. Xdrive30i.
$400.67
MSRP $500.84
Save $100.17
20% Off
51477466134 - : Scoop for BMW Image

Scoop

Side trim, right side.
$59.38
MSRP $74.23
Save $14.85
20% Off
17129894788 - : Reservoir Hose for BMW Image

Reservoir Hose

4.4L twin turbo, outer radiator, 2019-22, to intercooler. M50i,m60i, primary, 2020-23. Without m model, outer radiator, to intercooler.
$63.77
MSRP $79.71
Save $15.94
20% Off
51745A1A698 - : Lower Duct for BMW Image

Lower Duct

Without sport trim.
$286.04
MSRP $357.55
Save $71.51
20% Off
51745A25891 - : Lower Duct for BMW Image

Lower Duct

2022-25, M240i.
$203.79
MSRP $254.74
Save $50.95
20% Off
51477466133 - : Scoop for BMW Image

Scoop

Side trim, left side.
$58.29
MSRP $72.86
Save $14.57
20% Off
51748056320 - : Side Duct for BMW Image

Side Duct

With m model, oil cooler, outer.
$106.56
MSRP $133.20
Save $26.64
20% Off
51745A1ACE2 - : Radiator Shutter Assembly for BMW Image

Radiator Shutter Assembly

X3. Sdrive30i. Xdrive30i, m40i, lower, m40i.
$286.21
MSRP $357.76
Save $71.55
20% Off
51745A22C63 - : Upper Shutter for BMW Image

Upper Shutter

M340i.
$387.04
MSRP $483.80
Save $96.76
20% Off

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When clean air matters to your engine’s performance, the air filter is where it all starts. Designed to trap dust and debris, this part protects your engine and keeps combustion efficient. At BMW Auto Parts Online, we stock genuine BMW air filters that fit the system precisely. They work better and last longer than cheaper aftermarket filters.

What the air filter does for your BMW

The air filter prevents airborne contaminants from entering your engine. When clean, it supports fuel economy and reduces emissions. Genuine BMW filters are built with precise layers of filtration material and are tested to meet airflow standards. Models like the X3 and 7 Series are designed to run with exact airflow, which generic filters may disrupt.

Why and when they break down

Over time, filters get clogged with dirt, bugs, pollen, and road grime. In dusty areas or with extended city driving, filters may need replacement sooner than expected. Some lower-cost filters lose shape under airflow pressure, leading to bypass or reduced filtering. A fresh BMW air filter every 15,000 to 30,000 miles is a simple upgrade that avoids bigger problems.

Check the housing and surrounding parts

While replacing your air filter, inspect the intake manifold for carbon buildup or signs of restricted flow. A well-maintained system keeps everything breathing smoothly. At BMW Auto Parts Online, we carry both parts to help your maintenance stay consistent. Every factory filter we offer is made to match your BMW’s engineering.

A clean air filter makes a real difference. Choose one that’s built for your vehicle, not just one that fits the box.