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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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11217926104 - : Bearing for BMW Image

Bearing

745e xDrive. Upper. Green. X5. Z4. 540i. M440i. Engine Crankshaft Main Bearing.
$34.56
MSRP $43.05
Save $8.49
19.7% Off
11211717528 - : Bearing for BMW Image

Bearing

Engine Crankshaft Main Bearing.
$36.38
MSRP $38.48
Save $2.10
5.5% Off
79105561BEGRN - : Engine Crankshaft Main Bearing for Audi Image

Engine Crankshaft Main Bearing

RS7. Upper. S8. R8. Main bearing. Rs 5. Color-Green. Position-1,2,4,5. Listed under Audi part number 079-105-561-BE-GRN, this Engine...
$171.35
MSRP $223.98
Save $52.63
23.5% Off
130414602003 - : Engine Connecting Rod Bearing for Lexus Image

Engine Connecting Rod Bearing

Set. Marked-3. From 06/2001. From 08/01. Engine Connecting Rod Bearing.
$27.66
MSRP $34.08
Save $6.42
18.8% Off
8E0713347 - : Engine Crankshaft Main Bearing for Audi Image

Engine Crankshaft Main Bearing

Shifter and switches, 2010-11. This genuine Audi Engine Crankshaft Main Bearing, part number 8E0-713-347, operates inside the engine's...
$150.44
MSRP $196.66
Save $46.22
23.5% Off
6A105637A - : Engine Crankshaft Thrust Washer for Audi Image

Engine Crankshaft Thrust Washer

TT. A4. Thrust washers. Listed under Audi part number 06A-105-637-A, this Engine Crankshaft Thrust Washer is a small but load bearing...
$27.44
MSRP $40.98
Save $13.54
33% Off
55492646 - : Crankshaft Upper Bearing for GM Image

Crankshaft Upper Bearing

Main bearings. Silverado, sierra. Upper. Journal 1 or 7. 2.485-2.491. This GM Genuine Part is designed, engineered, and tested to...
$4.69
MSRP $6.36
Save $1.67
26.3% Off
55584594 - : Engine Crankshaft Main Bearing Set for GM Image

Engine Crankshaft Main Bearing Set

Cascada. Thrust bearing. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors...
$29.01
MSRP $40.22
Save $11.21
27.9% Off
12111JA00C - : Engine Connecting Rod Bearing for Infiniti Image

Engine Connecting Rod Bearing

Infiniti 12111-JA00C
Engine Connecting Rod Bearing.
$16.50
MSRP $21.55
Save $5.05
23.4% Off
WHT000033D - : Engine Crankshaft Thrust Washer for Audi Image

Engine Crankshaft Thrust Washer

Allroad. A6. A3. Thrust washers. From 11/8/10. From 11/08/2010. The original equipment Audi Engine Crankshaft Thrust Washer supplied...
$17.32
MSRP $25.38
Save $8.06
31.8% Off
JR3Z6333S - : Engine Crankshaft Main Bearing for Ford Image

Engine Crankshaft Main Bearing

To 07/22/2021. Grade 3. Engine Crankshaft Main Bearing.
$17.58
MSRP $23.17
Save $5.59
24.1% Off
11701F001005 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

ES300h. Japan built. ES250. Usa built. Position-1,3,5. NX350h. Us built. Mark 5. NX250. Engine Crankshaft Main Bearing.
$20.79
MSRP $25.43
Save $4.64
18.2% Off
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