2004 Main Bearings

Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Chevy, 4.8, 5.3L, Set of 5

Part Number: KGB-MB5293SI

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI010

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, SI-Series, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Set of 5

Part Number: KGB-MB5293SI010

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .001 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI001

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminumn, Chevy, Big Block, Set of 5

Part Number: KGB-MB556SI

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, SI-Series, 0.001 in. Crankshaft Undersize, Bi-metal, Grooved, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Set of 5

Part Number: KGB-MB5293SI001

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Big Block, Set of 5

Part Number: KGB-MB556SI010

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI020

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, Aluglide, A-Series, Grooved, Aluminum/Tin/Silicon, Stock Size Crankshaft, Chevy, 5.7L, 6.0L, 6.2L, 7.0L, Set of 5

Part Number: PEB-5M7298A-STD

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI030

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Silicon, Aluminum R Block, Ford, 4.6L, Set of 5

Part Number: KGB-MB5281SI

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, AL-Series, 1/2 Groove, Standard Size, AL-5, Chevrolet, Small Block, Set of 5

Part Number: CLE-MS909A

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, Tri-Metal, Copper/Lead Alloy, Stock Crankshaft, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Set of 5

Part Number: PEB-5M7298-STD

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, AL Series, 1/2 Groove, Standard Size, AL-5, Mopar, 5.7, 6.1L, Set

Part Number: CLE-MS2220A

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Big Block, Set of 5

Part Number: KGB-MB556SI020

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, SI-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Set of 5

Part Number: KGB-MB5293SI020

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, Standard Size, Tri Metal, Full Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4

Part Number: SLP-5085M

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .001 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Big Block, Set of 5

Part Number: KGB-MB556SI001

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, GM Genuine Parts Crankshaft Main Bearings, Direct Replacement, Stock Size, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Saturn, Set

Part Number: ADO-12591092

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, SI-Series, Direct Replacement, 1/2 Groove, Upper, Stock, Bi-metal, Silicon Aluminum, Subaru, Set of 5

Part Number: KGB-MB5382SI

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Big Block, Set of 5

Part Number: KGB-MB556SI030

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, .040 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI040

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, SI-Series, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Set of 5

Part Number: KGB-MB5293SI030

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, Standard Size, Bi Metal, 3/4 Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4

Part Number: SLP-5085MA

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Ford Modular V8, Set of 5

Part Number: KGB-MB5280SI

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air