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Automotive replacement engine main bearings: top picks

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Automotive replacement engine main bearings: top picks

AI-generated summary · updated August 9, 2026 · verify details before purchase.

  1. Sealed Power 6600A Engine Main Bearing Set
    Best overall Sealed Power

    Sealed Power 6600A Engine Main Bearing Set

    4.6/5 $69.99 Only 6 left

    High-quality tri-metal bearings with excellent durability and precise fitment for many GM and Chrysler engines.

    • Durable tri-metal construction
    • Precise fitment
    • Great value for price
    • Limited application range
    View on Amazon
  2. Clevite 77 MS-909S Engine Main Bearing Set
    Best durability Clevite 77

    Clevite 77 MS-909S Engine Main Bearing Set

    4.8/5 $38.01

    Legendary Clevite 77 bearings with special coating for reduced friction and enhanced longevity.

    • Excellent durability
    • Low friction coating
    • Wide application range
    • Can be hard to find in stock
    View on Amazon
  3. King Engine Bearings MB5265HP Engine Main Bearing Set
    Best for racing King Engine Bearings

    King Engine Bearings MB5265HP Engine Main Bearing Set

    4.4/5 $44.95 Only 12 left

    High-performance race bearings with advanced materials for extreme RPM and load conditions.

    • Race-proven design
    • High RPM capability
    • Precision manufacturing
    • Expensive
    • Not for street use
    View on Amazon
  4. Federal-Mogul 6608M Engine Main Bearing Set
    Best budget pick Federal-Mogul

    Federal-Mogul 6608M Engine Main Bearing Set

    4.3/5 $98.99 Only 2 left

    Affordable AlSn (aluminum-tin) bearings suitable for standard rebuilds with reliable performance.

    • Very affordable
    • Good for stock rebuilds
    • Reliable brand
    • Not for high performance
    • Limited selection
    View on Amazon
  5. Sealed Power 6600 Main Bearing Set
    Best value Sealed Power

    Sealed Power 6600 Main Bearing Set

    4.5/5 $69.99 Only 6 left

    Popular aftermarket bearings balancing cost and quality, perfect for general engine rebuilding.

    • Great price-to-quality ratio
    • Widely available
    • Easy installation
    • Basic design
    View on Amazon
  6. Clevite 77 MS-909SX Engine Main Bearing Set
    Best for heavy duty Clevite 77

    Clevite 77 MS-909SX Engine Main Bearing Set

    4.7/5 $94.19

    Extra-clearance version of the Clevite 77 for high-mileage or performance engines requiring more oil clearance.

    • Extra clearance for custom builds
    • Same Clevite durability
    • Good for worn blocks
    • Slightly higher cost
    • Requires proper clearance check
    View on Amazon
  7. ACDelco 12336220 GM Original Equipment Engine Main Bearing Set
    OEM quality ACDelco

    ACDelco 12336220 GM Original Equipment Engine Main Bearing Set

    4.7/5 $458.85 Currently unavailable

    Factory-spec bearings for GM engines, ensuring perfect compatibility and long service life.

    • OEM fit and finish
    • Long-lasting
    • Trusted brand
    • Premium price
    View on Amazon
  8. Mahle 003-2152 Engine Main Bearing Set
    Best for performance MAHLE

    Mahle 003-2152 Engine Main Bearing Set

    4.5/5 $57.95 Currently unavailable

    High-performance tri-metal bearings designed for high-load applications, ideal for racing or heavy use.

    • High load capacity
    • Improved wear resistance
    • Good for performance builds
    • Overkill for stock engines
    View on Amazon

Buying tips

When selecting engine main bearings, prioritize matching the bearing material to your engine's intended use: tri-metal for high performance, aluminum alloy for budget builds. Always verify application fitment with your engine's year, make, and model. Check oil clearance and ensure proper installation for longevity.

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