

⚙️ Upgrade your LS engine’s heartbeat with precision and power!
The Chevrolet Performance Pilot Bearing is a steel roller bearing designed specifically for GM LS-Series engines. Measuring 3.05 x 4.4 x 0.6 inches and weighing just 0.21 pounds, it meets Chevrolet’s OEM specifications (part number 12557583) and is optimized for grease lubrication. Proudly made in the USA, this bearing ensures reliable, smooth operation and durability for high-performance engine applications.
| Brand | Chevrolet |
| Material | Metal |
| Item dimensions L x W x H | 3.05 x 4.4 x 0.6 inches |
| Item Weight | 0.21 Pounds |
| Bearing Number | 12557583 |
| Specification Met | Chevrolet Performance Specifications |
| Bearing Type | Roller Bearing |
| Compatible Lubricant | Grease |
| Outside Diameter | 1.71 Inches |
| UPC | 099998221993 |
| Manufacturer | Chevrolet Performance |
| Item Weight | 3.28 ounces |
| Product Dimensions | 3.05 x 4.4 x 0.6 inches |
| Item model number | 12557583 |
| Manufacturer Part Number | 12557583 |
| OEM Part Number | 12557583 |
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