King Engine Bearings MB5784SI0.5 BMW N20B20 Main Bearing Set, +0.50 mm

King Engine Bearings BMW N20B20 Main Bearing Set - Size +0.50mm

Restore dependable bottom-end performance with the King Engine Bearings MB5784SI0.5 main bearing set for BMW N20B20 engines. Designed for applications requiring an oversized main bearing, this set is manufactured to support accurate crankshaft-to-bearing clearance and reliable crankshaft rotation after machining. The +0.50 mm sizing is intended for compatible undersize main journals and should be selected only after the crankshaft and engine block have been professionally measured.

King Engine Bearings applies precision manufacturing and material engineering to help provide consistent load support, wear resistance, and oil retention in demanding automotive engine environments. The MB5784SI0.5 set is a practical choice for engine rebuilds, repairs, and performance-oriented projects where dependable bearing fit and long-term durability are essential. Always verify bearing clearance, crankshaft condition, and installation requirements against the engine builder’s specifications before assembly.

This automotive main bearing set fits select BMW vehicles equipped with the N20B20 engine, including the 2012–2013 BMW 328i, 2013 BMW 328i xDrive, 2012–2016 BMW Z4, and 2013–2014 BMW X1. Fitment may vary by engine configuration, production date, and prior machining, so confirm application details before ordering. The King Engine Bearings part number is MB5784SI0.5.

Features:

• Application: Main bearing set designed for select BMW N20B20 engines
• Oversize fit: +0.50 mm bearing size for compatible machined main journals
• Precision manufacturing: Supports consistent bearing-to-journal clearance when properly installed
• Engine protection: Helps provide reliable load support, wear resistance, and oil retention during operation

Fitments:
2012 BMW 328i Base
2012 BMW 528i Base
2012 BMW 528i xDrive Base
2012 BMW X1 xDrive28i
2012 BMW Z4 sDrive28i
2013 BMW 320i Base
2013 BMW 320i xDrive Base
2013 BMW 328i Base
2013 BMW 328i xDrive Base
2013 BMW 528i Base
2013 BMW 528i xDrive Base
2013 BMW X1 sDrive28i
2013 BMW X1 xDrive28i
2013 BMW X3 xDrive28i
2013 BMW Z4 sDrive28i
2014 BMW 228i Base
2014 BMW 320i Base
2014 BMW 320i xDrive Base
2014 BMW 328i Base
2014 BMW 328i GT xDrive Base
2014 BMW 328i xDrive Base
2014 BMW 428i Base
2014 BMW 428i xDrive Base
2014 BMW 528i Base
2014 BMW 528i xDrive Base
2014 BMW X1 sDrive28i
2014 BMW X1 xDrive28i
2014 BMW X3 xDrive28i
2014 BMW Z4 sDrive28i
2015 BMW 228i Base
2015 BMW 228i xDrive Base
2015 BMW 320i Base
2015 BMW 320i xDrive Base
2015 BMW 328i Base
2015 BMW 328i GT xDrive Base
2015 BMW 328i xDrive Base
2015 BMW 428i Base
2015 BMW 428i Gran Coupe Base
2015 BMW 428i xDrive Base
2015 BMW 428i xDrive Gran Coupe Base
2015 BMW 528i Base
2015 BMW 528i xDrive Base
2015 BMW X1 sDrive28i
2015 BMW X1 xDrive28i
2015 BMW X3 sDrive28i
2015 BMW X3 xDrive28i
2015 BMW X4 xDrive28i
2015 BMW Z4 sDrive28i
2016 BMW 228i Base
2016 BMW 228i xDrive Base
2016 BMW 320i Base
2016 BMW 320i xDrive Base
2016 BMW 328i Base
2016 BMW 328i GT xDrive Base
2016 BMW 328i xDrive Base
2016 BMW 428i Base
2016 BMW 428i Gran Coupe Base
2016 BMW 428i xDrive Base
2016 BMW 428i xDrive Gran Coupe Base
2016 BMW 528i Base
2016 BMW 528i xDrive Base
2016 BMW X3 sDrive28i
2016 BMW X3 xDrive28i
2016 BMW X4 xDrive28i
2016 BMW Z4 sDrive28i
2017 BMW 320i Base
2017 BMW 320i xDrive Base
2017 BMW X3 sDrive28i
2017 BMW X3 xDrive28i
2017 BMW X4 xDrive28i
2018 BMW 320i Base
2018 BMW 320i xDrive Base
2018 BMW X4 xDrive28i

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1