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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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JDE39638 - : Engine Crankshaft Main Bearing for Jaguar Image

Engine Crankshaft Main Bearing

Jaguar JDE39638
F-Pace. Upper. XF. E-Pace. XE series. Purple. From vin jcp32456. F-Type. Bearing. To vin jcp32455. Engine Crankshaft Main Bearing.
$18.58
MSRP $19.36
Save $0.78
4% Off
12108AA730 - : Engine Connecting Rod Bearing Set for Subaru Image

Engine Connecting Rod Bearing Set

Subaru 12108AA730
Impreza. Standard. To 9/1/08.
$257.45
MSRP $339.20
Save $81.75
24.1% Off
130413803002 - : Engine Connecting Rod Bearing for Lexus Image

Engine Connecting Rod Bearing

To 02/07. Stamped #2. Engine Connecting Rod Bearing.
$25.74
MSRP $31.48
Save $5.74
18.2% Off
1170138030H9 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

Engine Crankshaft Main Bearing.
$35.10
MSRP $43.24
Save $8.14
18.8% Off
12207JK21E - : Engine Crankshaft Main Bearing for Infiniti Image

Engine Crankshaft Main Bearing

Infiniti 12207-JK21E
Q60. Grade 1. Engine Crankshaft Main Bearing.
$34.86
MSRP $41.12
Save $6.26
15.2% Off
117017503403 - : Engine Crankshaft Main Bearing for Toyota Image

Engine Crankshaft Main Bearing

Tacoma. Single upper/lower bearing. Mark #3. From 12/17. Engine Crankshaft Main Bearing.
$21.88
MSRP $27.26
Save $5.38
19.7% Off
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
130413111003 - : Engine Connecting Rod Bearing for Toyota Image

Engine Connecting Rod Bearing

Highlander. Marked-3. Engine Connecting Rod Bearing.
$19.40
MSRP $24.17
Save $4.77
19.7% 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
12111JF03A - : Connecting Rod Bearing for Nissan Image

Connecting Rod Bearing

Nissan 12111-JF03A
GT-R. Grade 3. Engine Connecting Rod Bearing.
$43.33
MSRP $55.90
Save $12.57
22.5% Off
4429070AB - : Crankshaft Bearing Kit for Mopar Image

Crankshaft Bearing Kit

Mopar 4429070AB
CRANKSHAFT Engine Crankshaft Main Bearing.
$384.71
MSRP $521.00
Save $136.29
26.2% Off
68119545AA - : Connecting Rod Bearing for Mopar Image

Connecting Rod Bearing

Mopar 68119545AA
.005" u/s.
$15.92
MSRP $20.80
Save $4.88
23.5% Off
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