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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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1F2211225 - : Engine Connecting Rod Bearing for Mazda Image

Engine Connecting Rod Bearing

Mazda 1F22-11-225
$15.89
MSRP $20.43
Save $4.54
22.2% Off
1220731U4C - : Engine Crankshaft Main Bearing for Nissan Image

Engine Crankshaft Main Bearing

Nissan 12207-31U4C
Maxima. Grade 4. To 10/2020. Engine Crankshaft Main Bearing.
$19.78
MSRP $25.08
Save $5.30
21.1% Off
1107170040A1 - : Main Bearings for Lexus Image

Main Bearings

LS500. Mark upper 1, lower 2. No. 2.
$37.25
MSRP $45.89
Save $8.64
18.8% Off
CWA111351 - : Main Bearings for Mazda Image

Main Bearings

Mazda CWA1-11-351
CX-50. Mark 1.
$25.87
MSRP $34.36
Save $8.49
24.7% Off
CWA111391 - : Thrust Bearing for Mazda Image

Thrust Bearing

Mazda CWA1-11-391
CX-50.
$12.33
MSRP $15.85
Save $3.52
22.2% Off
JT4Z6333R - : Main Bearings for Ford Image

Main Bearings

Engine Crankshaft Main Bearing.
$15.31
MSRP $20.17
Save $4.86
24.1% Off
55492647 - : Crankshaft Upper Bearing for GM Image

Crankshaft Upper Bearing

Main bearings. Silverado, sierra. Upper. Journal 1 or 7. 2.479-2.485. This GM Genuine Part is designed, engineered, and tested to...
$4.44
MSRP $6.02
Save $1.58
26.2% Off
55584592 - : Engine Crankshaft Main Bearing Set for GM Image

Engine Crankshaft Main Bearing Set

Cascada. Main. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Engine...
$24.46
MSRP $33.14
Save $8.68
26.2% Off
55486828 - : Engine Crankshaft Bearing Set for GM Image

Engine Crankshaft Bearing Set

Malibu. Oversized. Complete Set. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$203.25
MSRP $286.42
Save $83.17
29% Off
1107138010G7 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

Engine Crankshaft Main Bearing.
$27.05
MSRP $33.08
Save $6.03
18.2% Off
L3Y211SHX - : Bearing Set for Mazda Image

Bearing Set

Mazda L3Y2-11-SHX
Miata mx5. CX-7. 0.50 o/s. Mazda5. 0.50 o/s. Mazda6. 0.50 o/s.
$117.37
MSRP $149.58
Save $32.21
21.5% Off
110710P060D4 - : Engine Crankshaft Main Bearing for Lexus Image

Engine Crankshaft Main Bearing

Engine Crankshaft Main Bearing.
$24.06
MSRP $29.42
Save $5.36
18.2% Off
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