King MB798AM Main Bearing Set for 1982-2000 BMW M20/M50/M52 Engines (Std)

Regular price: $109.95
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Sale price: $109.95

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In Stock: 14

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Product Specification:

SKU:KINGMB798AM

MPN: MB798AM

UPC: 611500183607

Weight: 1.2 lb

Inventory: 14

Type: Bearings

Vehicle Fitment

1982-2000 BMW 3-Series/5-Series/Z3/Z4/X3 (M20B20-27, M50B25, M52B20-28) - RWD/AWD

Features

Bimetal construction with steel backing & aluminum lining for durability
360° oil groove for enhanced lubrication
Standard (STD) size bearings - ideal for stock rebuilds
Precision-machined for consistent crankshaft support
High load capacity - meets SAE-783 specs
Factory OEM fitment - direct replacement
100% in-house design & manufacturing in USA
Sold as complete 7-pair main bearing set for full engine rebuild

Specifications

Housing bore: 64.999-65.019 mm; Peak shaft size: 59.980-59.990 mm :contentReference[oaicite:1]{index=1}
Bearing width: 25.039 mm; Thickness: 2.494 mm :contentReference[oaicite:2]{index=2}
Material: aluminum overlay on steel backing :contentReference[oaicite:3]{index=3}
Undersize: Standard (STD); other undersizes (0.25, 0.5, 0.75, 1.0 mm) sold separately :contentReference[oaicite:4]{index=4}
Includes full set: front & rear 3 journals and 4 intermediate journals for complete rebuild

Included Components

7x pairs of main bearings (complete set)

Product Description

The King MB798AM Main Bearing Set is a direct-fit, standard-size bearing kit for BMW M20 (2.0-2.7L), M50B25, and M52B20-28 engines built between 1982 and 2000. Featuring bimetal construction with steel backing and aluminum overlay, these bearings offer OEM-level durability and performance. The full 360° oil groove ensures superior lubrication, making them ideal for reliable, long-lasting engine operation.

Designed for engine builders and DIY mechanics performing stock rebuilds, this 7-pair set covers all main journals (front, intermediate, and rear). The precision machining meets stringent SAE-783 standards for load-bearing and wear. If your engine requires undersize bearings (e.g., 0.25 mm), choose the corresponding MB798AM0.25, MB798AM0.5, etc. (each sold separately).