King Engine Bearings MB5520AM1.0 Main Bearing Set Opel - C20XE X18XE X22XE

The King Engine Bearings MB5520AM1.0 is a complete main bearing set engineered for Opel engines using the C20XE, X18XE, and X22XE engine codes. Manufactured to precise OEM dimensional tolerances, this set delivers reliable crankshaft support and long service life in street-driven and light-performance applications.

Material Construction:

• Bi-Metal Aluminum (AM Series) — Standard aluminum-based bearing material equivalent to SAE-783, engineered for low to medium load engines
• Aluminum alloy overlay provides excellent conformability and embeddability, accommodating minor surface irregularities in the journal
• Steel backing ensures dimensional stability and a secure press fit in the housing bore

Key Features:

• Complete main bearing set for the Opel C20XE, X18XE, and X22XE engine families
• Oversize: 1.0mm — designed for use with reground or re-machined crankshafts
• Manufactured to exacting OEM specifications for proper oil clearance and crush
• King's proprietary surface finishing ensures optimal oil film distribution across the bearing face
• Each bearing shell is individually inspected for wall thickness consistency

King Engine Bearings is a globally recognized manufacturer of precision engine bearings, supplying both OEM and aftermarket applications worldwide. The AM Series is an ideal choice for rebuilders seeking a dependable, cost-effective solution for standard street-performance engine rebuilds.