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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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55487322 - : Crankshaft Upper Bearing for GM Image

Crankshaft Upper Bearing

XT4. Upper. Marked-Z. Size-3. CT4. XT5. Id 313 z. Acadia. Blazer. This GM Genuine Part is designed, engineered, and tested to rigorous...
$4.09
MSRP $5.54
Save $1.45
26.2% Off
4893527AB - : Crankshaft Lower Bearing for Mopar Image

Crankshaft Lower Bearing

Mopar 4893527AB
Cherokee. Lower. Grade 3. Engine Crankshaft Main Bearing.
$12.16
MSRP $15.90
Save $3.74
23.5% Off
68317402AA - : Bearing for Mopar Image

Bearing

Mopar 68317402AA
NONE Engine Crankshaft Main Bearing.
$200.80
MSRP $267.00
Save $66.20
24.8% Off
9A110107392 - : Engine Crankshaft Main Bearing for Porsche Image

Engine Crankshaft Main Bearing

Porsche 9A1-101-073-92
Position-3,5,7. 911. Without partial groove. Blue.
$126.64
MSRP $129.94
Save $3.30
2.5% Off
PEY111SHX - : Bearing Set for Mazda Image

Bearing Set

Mazda PEY1-11-SHX
MX-5 Miata. O.s. 0.50. CX-3. Mazda3. CX-5. Miata mx5.
$105.78
MSRP $134.81
Save $29.03
21.5% Off
KJY111SE0 - : Bearing Set for Mazda Image

Bearing Set

Mazda KJY1-11-SE0
Millenia. 2.5l. 626, MX-6. Millenia. 2.3l. 929.
$129.11
MSRP $164.55
Save $35.44
21.5% Off
N3A211B11 - : Bearing for Mazda Image

Bearing

Mazda n3a211b11
Rotor. RX-8. 0.000-0.005. Rx7. RX-7.
$59.75
MSRP $79.37
Save $19.62
24.7% Off
12604131 - : Passenger Side Balancer Shaft Center Bearing for GM Image

Passenger Side Balancer Shaft Center Bearing

Canyon, Colorado. Hummer H3. Center. Right. Engine Balance Shaft Bearing.
$8.59
MSRP $11.64
Save $3.05
26.2% Off
110717502201 - : Engine Crankshaft Main Bearing for Toyota Image

Engine Crankshaft Main Bearing

All models. No.2. Tacoma. Previa. No.1. Mark #1. Bearing. Stamped #1.
$28.41
MSRP $36.57
Save $8.16
22.3% Off
110717004004 - : Engine Crankshaft Main Bearing for Toyota Image

Engine Crankshaft Main Bearing

Tundra. Inner. Marked-4. Position-2,3. Engine Crankshaft Main Bearing.
$30.35
MSRP $39.08
Save $8.73
22.3% Off
JDE41263 - : Connecting Rod Bearing for Jaguar Image

Connecting Rod Bearing

Jaguar JDE41263
XE series. Upper. Yellow. F-Pace. XF.
$33.67
MSRP $39.31
Save $5.64
14.3% Off
11247617338 - : Engine Connecting Rod Bearing for BMW Image

Engine Connecting Rod Bearing

Engine Connecting Rod Bearing.
$36.56
MSRP $45.53
Save $8.97
19.7% Off
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