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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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254033700058 - : Main Bearings for Mercedes-Benz Image

Main Bearings

Mercedes-Benz 254-033-70-00-58
C300. Violet. Lower. Cylinder 7. E450. Gle53 amg. Gls450. Pedestal 7.
$6.63
MSRP $8.75
Save $2.12
24.2% Off
PB105589F - : Bearing for Porsche Image

Bearing

Porsche 0PB-105-589-F
Keep your Porsche running as intended with the genuine Bearing, Part #0PB-105-589-F, built to factory-original standards.
$32.78
PB105702H - : Bearing for Porsche Image

Bearing

Porsche 0PB-105-702-H
Keep your Porsche running as intended with the genuine Bearing, Part #0PB-105-702-H, built to factory-original standards.
$73.19
MSRP $75.10
Save $1.91
2.5% Off
PD105591A - : Engine Crankshaft Main Bearing for Porsche Image

Engine Crankshaft Main Bearing

Porsche 0PD-105-591-A
The Engine Crankshaft Main Bearing (Part #0PD-105-591-A) is a genuine Porsche Engine Component, manufactured to exact factory tolerances...
$34.81
94810124108 - : Engine Crankshaft Main Bearing for Porsche Image

Engine Crankshaft Main Bearing

Porsche 948-101-241-08
Keep your Porsche running as intended with the genuine Engine Crankshaft Main Bearing, Part #948-101-241-08, built to factory-original...
$23.04
99710390100 - : Engine Connecting Rod Bearing for Porsche Image

Engine Connecting Rod Bearing

Porsche 997-103-901-00
This OEM Porsche Engine Component (997-103-901-00) is engineered to original specifications, helping maintain the performance and...
$114.45
MSRP $124.84
Save $10.39
8.3% Off
95810124303 - : Engine Crankshaft Main Bearing for Porsche Image

Engine Crankshaft Main Bearing

Porsche 958-101-243-03
Keep your Porsche running as intended with the genuine Engine Crankshaft Main Bearing, Part #958-101-243-03, built to factory-original...
$16.61
PB105701H - : Bearing for Porsche Image

Bearing

Porsche 0PB-105-701-H
This OEM Porsche OEM Replacement Component (0PB-105-701-H) is engineered to original specifications, helping maintain the performance...
$28.44
91810114103 - : Engine Crankshaft Main Bearing for Porsche Image

Engine Crankshaft Main Bearing

Porsche 918-101-141-03
This OEM Porsche Engine Component (918-101-141-03) is engineered to original specifications, helping maintain the performance and...
$294.35
MSRP $296.28
Save $1.93
0.7% Off
210202T004 - : Engine Crankshaft Main Bearing for Hyundai Image

Engine Crankshaft Main Bearing

Hyundai 21020-2T004
$20.49
MSRP $25.15
Save $4.66
18.5% Off
HG3032115 - : Bearing for Mazda Image

Bearing

Mazda HG30-32-115
$41.72
MSRP $55.41
Save $13.69
24.7% Off
230603C944 - : Engine Crankshaft Main Bearing for Hyundai Image

Engine Crankshaft Main Bearing

Hyundai 23060-3C944
Santa Fe XL. Undersized -0.25.
$162.72
MSRP $207.47
Save $44.75
21.6% Off
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