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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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9A710559102 - : Engine Crankshaft Main Bearing for Porsche Image

Engine Crankshaft Main Bearing

Porsche 9A7-105-591-02
This OEM Porsche Engine Component (9A7-105-591-02) is engineered to original specifications, helping maintain the performance and...
$15.66
95810124402 - : Engine Crankshaft Main Bearing for Porsche Image

Engine Crankshaft Main Bearing

Porsche 958-101-244-02
The Engine Crankshaft Main Bearing (Part #958-101-244-02) is a genuine Porsche Engine Component, manufactured to exact factory...
$16.61
94610325404 - : Engine Connecting Rod Bearing for Porsche Image

Engine Connecting Rod Bearing

Porsche 946-103-254-04
This OEM Porsche Engine Component (946-103-254-04) is engineered to original specifications, helping maintain the performance and...
$35.02
122071MR7A - : Engine Crankshaft Main Bearing for Infiniti Image

Engine Crankshaft Main Bearing

Infiniti 12207-1MR7A
Engine Crankshaft Main Bearing.
$32.78
MSRP $38.67
Save $5.89
15.2% Off
AJ5711225 - : Bearing for Mazda Image

Bearing

Mazda AJ57-11-225
MPV. Tribute. Mazda6. Set.
$7.35
MSRP $9.46
Save $2.11
22.3% Off
4E105701KROT - : Engine Connecting Rod Bearing for Volkswagen Image

Engine Connecting Rod Bearing

Volkswagen 04E-105-701-K-ROT
Jetta. Upper. Red. Engine Connecting Rod Bearing.
$22.22
MSRP $33.99
Save $11.77
34.6% Off
4884914AA - : Engine Crankshaft Main Bearing for Mopar Image

Engine Crankshaft Main Bearing

Mopar 04884914AA
CRANKSHAFT UPPER Engine Crankshaft Main Bearing.
$2.78
MSRP $3.60
Save $0.82
22.8% Off
1107270010A4 - : Main Bearings for Toyota Image

Main Bearings

Tundra. No. 3. Mark upper 4, lower 5.
$26.67
MSRP $34.33
Save $7.66
22.3% Off
1320446023 - : Bearing Set for Lexus Image

Bearing Set

Lexus 13204-46023
SC300, GS300.
$164.08
MSRP $212.06
Save $47.98
22.6% Off
13341RKG004 - : Bearing for Acura Image

Bearing

OE part number 13341-RKG-004: the genuine Acura bearing, made to the original specification. It is part of the engine assembly and...
$30.12
MSRP $39.23
Save $9.11
23.2% Off
13326RYEA01 - : Bearing for Acura Image

Bearing

This is the genuine Acura bearing, OE part number 13326-RYE-A01. It is part of the engine assembly and internal components and is...
$30.81
MSRP $40.11
Save $9.30
23.2% Off
13326RB0003 - : Engine Crankshaft Main Bearing for Acura Image

Engine Crankshaft Main Bearing

Acura engine crankshaft main bearing 13326-RB0-003 - an original equipment component supplied to factory specification. It is part of...
$28.22
MSRP $36.74
Save $8.52
23.2% Off
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