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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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68242631AA - : Crankshaft Lower Bearing for Mopar Image

Crankshaft Lower Bearing

Mopar 68242631AA
CRANKSHAFT LOWER Engine Crankshaft Main Bearing.
$5.89
MSRP $7.65
Save $1.76
23% Off
7K105561JVIO - : Engine Crankshaft Main Bearing for Audi Image

Engine Crankshaft Main Bearing

Upper. Violet. RS3. TT RS Quattro. Main bearings. This genuine Audi Engine Crankshaft Main Bearing, part number 07K-105-561-J-VIO,...
$29.54
MSRP $44.12
Save $14.58
33% Off
110712002102 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

ES300. Inner. RX400h. RX300. No. 2 & 3. Mark #2. ES330. RX330. Engine Crankshaft Main Bearing.
$28.61
MSRP $35.25
Save $6.64
18.8% Off
117210V03004 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

Engine Crankshaft Main Bearing.
$9.10
MSRP $11.13
Save $2.03
18.2% Off
3H105701EGLB - : Engine Connecting Rod Bearing for Audi Image

Engine Connecting Rod Bearing

Q7. Yellow. This genuine Audi Engine Connecting Rod Bearing, part number 03H-105-701-E-GLB, operates inside the engine's rotating and...
$8.15
MSRP $11.98
Save $3.83
32% Off
110710A02007 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

RX400h. No.2. ES330. Bearing. Marked-7. Position-2,3. ES300. Inner. Engine Crankshaft Main Bearing.
$28.30
MSRP $34.86
Save $6.56
18.8% Off
117010P060A1 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

Engine Crankshaft Main Bearing.
$25.42
MSRP $31.09
Save $5.67
18.2% Off
130413111002 - : Engine Connecting Rod Bearing for Lexus Image

Engine Connecting Rod Bearing

ES350. R/m *497. Mark #2. Engine Connecting Rod Bearing.
$19.84
MSRP $24.27
Save $4.43
18.3% Off
79105591AJGRN - : Engine Crankshaft Main Bearing for Audi Image

Engine Crankshaft Main Bearing

Position-3. Position-5. S5. Lower. Green. From 11/02/2009. This genuine Audi Engine Crankshaft Main Bearing, part number...
$97.39
MSRP $128.31
Save $30.92
24.1% Off
12207JA03B - : Engine Crankshaft Main Bearing for Infiniti Image

Engine Crankshaft Main Bearing

Infiniti 12207-JA03B
Engine Crankshaft Main Bearing.
$14.18
MSRP $16.00
Save $1.82
11.4% Off
11701F005001 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

$22.70
MSRP $27.76
Save $5.06
18.2% Off
130417003103 - : Engine Connecting Rod Bearing for Lexus Image

Engine Connecting Rod Bearing

LS500. From 1/20. LX600. Mark 3. Engine Connecting Rod Bearing.
$21.47
MSRP $26.26
Save $4.79
18.2% Off
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