King CR6640SM SM Series Connecting Rod Bearings for BMW M20/M50/M52/M54

Regular price: $128.95
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Sale price: $128.95

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In Stock: 18

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Product Specification:

SKU:KINGCR6640SM

MPN: CR6640SM

UPC: 611500625855

Weight: 0.4 lb

Inventory: 18

Type: Bearings

Vehicle Fitment

1984-1993 BMW 3 Series (E30) (M20 2.0L/2.5L I6)
1991-1999 BMW 3 Series (E36) (M50/M52 2.5L/2.8L I6)
1999-2006 BMW 3 Series (E46) (M52/M54 2.5L/3.0L I6)
1982-1996 BMW 5 Series (E28/E34) (M20/M50 2.5L I6)
1997-2003 BMW 5 Series (E39) (M52/M54 2.5L/2.8L/3.0L I6)
1996-2002 BMW Z3 (M52/M54 2.5L/2.8L/3.0L I6)
2003-2005 BMW Z4 (M54 2.5L/3.0L I6)

Features

King SM Series OE-replacement connecting rod bearings
Bi-metal aluminum alloy construction
Manganese and chromium strengthened alloy matrix
Excellent seizure resistance and conformability
Lead-free environmentally compliant design
Precision machined for accurate oil clearance
Optimized oil groove and bearing geometry
Designed for stock and mild performance rebuilds

Specifications

Part Number: CR6640SM
Series: SM (OE Replacement)
Application: Connecting Rod Bearing Set
Engine Compatibility: BMW M20, M50, M52, M54 I6 engines
Bearing Quantity: 6 pairs (12 halves)
Material: Strengthened aluminum bi-metal alloy
Size: Standard (STD) journal size
Position: Connecting Rod

Included Components

6x pairs of SM Series connecting rod bearings (STD)

Product Description

The King CR6640SM SM Series Connecting Rod Bearings are engineered as a high-quality OE replacement solution for BMW inline-6 engines including the M20, M50, M52, and M54 platforms. Manufactured from a strengthened aluminum bi-metal alloy reinforced with manganese and chromium, these bearings provide excellent wear resistance, seizure protection, and durability for stock and mild performance applications.

Designed for standard journal crankshafts, this set includes six precision-matched pairs to ensure consistent oil clearance and reliable hydrodynamic lubrication. The SM Series is ideal for engine rebuilds where dependable OEM-level performance and long service life are required. Always confirm engine code and journal size prior to installation to ensure correct application.