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The Importance and Function of Engine Bearings

Engines primarily rely on oil for lubrication, but that’s not the only way they minimize friction and heat. They also employ various engine bearings that reduce resistance while running at thousands of revolutions per minute. When these bearings age or fail, they can lead to catastrophic engine damage.

Most engines have the same types of bearings, starting with the main crankshaft bearings, which sit at the front and rear of the crankshaft inside the engine. Next are the connecting rod bearings, where the connecting rods attach to the crankshaft. The piston head bearings reduce resistance where the pistons connect to the top of the connecting rods. Finally, the camshaft bearings reduce friction from the camshaft spinning inside the engine.

If an engine bearing starts failing, you may hear a faint grinding sound from inside the engine. As the bearing gets worse, the noise will get louder. Eventually, the bearing can fail, leading to excessive friction and damaging internal engine components.

Because engine bearings play such a key role, replacing them the moment they start making noise is important.

Get Genuine Replacement Engine Bearings at AutoNation Parts

Do you have a failing engine bearing? If so, replace it with high-quality parts that will operate as expected and last many years. AutoNation Parts has a large collection of engine bearings for all makes and models.

On top of offering high-quality replacement parts, AutoNation Parts also saves you time with convenient online ordering and direct shipment to your front door.

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95810124305 - : Engine Crankshaft Main Bearing for Porsche Image

Engine Crankshaft Main Bearing

Porsche 958-101-243-05
This OEM Porsche Engine Component (958-101-243-05) is engineered to original specifications, helping maintain the performance and...
$16.61
12210EZ49C - : Engine Crankshaft Main Bearing for Nissan Image

Engine Crankshaft Main Bearing

Nissan 12210-EZ49C
TITAN XD. Main bearing set. Engine Crankshaft Main Bearing.
$366.75
MSRP $483.20
Save $116.45
24.1% Off
156030036064 - : Engine Connecting Rod Bearing for Mercedes-Benz Image

Engine Connecting Rod Bearing

Mercedes-Benz 156-030-03-60-64
C63 amg. Ml63 amg. Clk63 amg. Cl63 amg. S63 amg. E63 amg. Sl63 amg. R63 amg. Engine Connecting Rod Bearing.
$26.14
MSRP $34.50
Save $8.36
24.2% Off
156033070256 - : Engine Crankshaft Main Bearing for Mercedes-Benz Image

Engine Crankshaft Main Bearing

Mercedes-Benz 156-033-07-02-56
C63 amg. Red. Ml63 amg. Clk63 amg. Lower. Cl63 amg. S63 amg. E63 amg. Sl63 amg. R63 amg. Engine Crankshaft Main Bearing.
$14.66
MSRP $19.50
Save $4.84
24.8% Off
1200380910 - : Engine Connecting Rod Bearing for Mercedes-Benz Image

Engine Connecting Rod Bearing

Mercedes-Benz 120-038-09-10
Sl600. Engine Connecting Rod Bearing.
$19.76
MSRP $26.00
Save $6.24
24% Off
156033070252 - : Engine Crankshaft Main Bearing for Mercedes-Benz Image

Engine Crankshaft Main Bearing

Mercedes-Benz 156-033-07-02-52
C63 amg. Lower. Blue. Ml63 amg. Cl63 amg. S63 amg. E63 amg. Sl63 amg. R63 amg. Engine Crankshaft Main Bearing.
$13.39
MSRP $17.50
Save $4.11
23.5% Off
272033490154 - : Engine Crankshaft Main Bearing for Mercedes-Benz Image

Engine Crankshaft Main Bearing

Mercedes-Benz 272-033-49-01-54
C300, c300 4-matic, c350. Upper. 20.6mm. Yellow. Engine Crankshaft Main Bearing.
$5.87
MSRP $7.75
Save $1.88
24.3% Off
275033110152 - : Engine Crankshaft Main Bearing for Mercedes-Benz Image

Engine Crankshaft Main Bearing

Mercedes-Benz 275-033-11-01-52
S65 amg. Upper. Blue. Sl65 amg. Cl65 amg. G65 amg. Engine Crankshaft Main Bearing.
$17.85
MSRP $23.50
Save $5.65
24% Off
2780300160 - : Engine Connecting Rod Bearing for Mercedes-Benz Image

Engine Connecting Rod Bearing

Mercedes-Benz 278-030-01-60
Engine Connecting Rod Bearing.
$28.05
MSRP $37.00
Save $8.95
24.2% Off
270033020257 - : Engine Crankshaft Main Bearing for Mercedes-Benz Image

Engine Crankshaft Main Bearing

Mercedes-Benz 270-033-02-02-57
Engine Crankshaft Main Bearing.
$5.01
MSRP $6.75
Save $1.74
25.8% Off
2760331862 - : Engine Crankshaft Thrust Washer for Mercedes-Benz Image

Engine Crankshaft Thrust Washer

Mercedes-Benz 276-033-18-62
Engine Crankshaft Thrust Washer.
$6.38
MSRP $8.50
Save $2.12
24.9% Off
272033520156 - : Engine Crankshaft Main Bearing for Mercedes-Benz Image

Engine Crankshaft Main Bearing

Mercedes-Benz 272-033-52-01-56
C300, c300 4-matic, c350. Upper. 24.0mm. Red. Engine Crankshaft Main Bearing.
$5.61
MSRP $7.50
Save $1.89
25.2% Off
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