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King Engine Bearings MB5128AM0.25 Main Bearing Set Bimetal 0.25mm Undersize

(1988 Chevrolet Nova; 1990-1993 Geo Storm; 1990-1992 Lotus Elan; 1991-1992 Isuzu Impulse; 1991-1993 Isuzu Stylus; 1993 Asuna Sunfire)

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB5128AM0.25
12 reviews
Sale Price

$44.39

Estimated ship date Saturday, November 21

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Product Details

The King Engine Bearings MB5128AM0.25 is a complete main bearing set engineered for Isuzu engines including the 4XE1, 4XF1, and 4XC1T. This set features a bimetal (aluminum base) construction with a 0.25mm undersize specification, making it ideal for engine rebuilds where journals have been machined undersized to restore proper tolerances.

Key Features:

  • Bimetal construction with an aluminum-based bearing surface for excellent load capacity and fatigue resistance
  • 0.25mm undersize (0.010" standard) for use with reground crankshafts
  • Precision-engineered to OEM tolerances for consistent oil film thickness and proper clearance
  • High-quality steel backing provides structural rigidity and heat dissipation
  • Aluminum overlay offers superior corrosion resistance and embeddability for contaminant tolerance
  • Manufactured to meet or exceed original equipment specifications
  • Full main bearing set included — covers all main journal positions

King Engine Bearings is a globally recognized manufacturer of precision engine bearings, supplying both OEM and aftermarket customers. Their bimetal bearing technology is a proven choice for professional engine rebuilders seeking reliable performance and longevity in rebuilt Isuzu powerplants.

Products specifications

Fits

1988 Chevrolet Nova; 1990-1993 Geo Storm; 1990-1992 Lotus Elan; 1991-1992 Isuzu Impulse; 1991-1993 Isuzu Stylus; 1993 Asuna Sunfire

Undersize

0.25

Material

bimetal (aluminum base)

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