8972531051 Isuzu BEARING; MAI, Price: 150.41$, Weight: 0.34kg


Make Number Name Availability Weight, kg Ship in, Days Price

Isuzu

8972531051

BEARING; MAI

326

0.34

2-3

150.41$

 

Originals

Make Number Name Availability Weight, kg Processing, days Price  
NSK
8972531051 
BEARING
0
0.391
4-5
45.57$
Not Available

Substitutions

Make Number Name Availability Weight, kg Processing, days Price  
NSK
HTF0457AG5NC301 
BEARING
17
0.391
4-5
49.13$
 
NSK
HTF0457ACGNC3 
HTF045-7-A-CGNC3 AUTOMOTIVE TAPERED SPECIAL BEARING 8-97253105-1 NSK
0
0.391
4-5
43.80$
Not Available

Engine Main Bearing Set for Isuzu

This precision engine main bearing supports the crankshaft inside the engine block. It is needed to keep the crankshaft perfectly aligned while it spins at high speed, carrying heavy combustion loads. A healthy main bearing helps maintain stable oil pressure and smooth engine operation βœ….

How This Bearing Works ?️

The bearing shell sits between the crankshaft journal and the block/cap. A thin pressurized oil film forms between metal surfaces, so the crank β€œfloats” instead of grinding. This reduces friction, controls heat, and prevents crankshaft scoring. Correct clearance is critical for long engine life.

Symptoms & What Happens If It Fails ⚠️

If the bearing is worn or damaged, you may notice low oil pressure, knocking from the bottom end, metallic debris in oil, or crankshaft vibration. Continued driving can cause the bearing to spin, seize the crankshaft, ruin the block, and lead to a full engine rebuild or replacement ?.

Best Practice

Always match size/grade to your engine, use clean assembly lube, and verify clearances during installation for a quiet, durable repair.