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Main Bearings
RallySport Direct carries a large selection of main bearings for those who are going to rebuild their motor. You can choose from a variety of sizes that include standard, stock, or oversized. Choose from great manufacturers that include the likes of Cosworth, King Engine Bearings, and ACL bearings for your Subaru WRX and STI and more. All three brands offer great bearings that can sustain engines designed to rev high and create lots of power. you can also choose bearings that have the option of anti-friction coating. A good set of main bearings is crucial to a new engine build and should never be overlooked.
Make sure when planning your engine build, that you check out our great selection of pistons and sleeves, rod bearings, and seals.
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5M8309H-STD
ACL Race Main Bearings Standard Size - Subaru Models (inc. 2002-2014 WRX / 2004+ STI)
5M8309H-.25
ACL Race Main Bearings Undersized -.010in - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI)
1 In Stock
5M8309A-STD
ACL Main Bearings Standard Size - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI)
2 In Stock
5M8309H-.50
ACL Race Main Bearings Undersized -.020in - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI)
MS2258A50MM
Clevite Undersized Main Bearing Set -.020in - Subaru Models (inc. 2015-2021 STI / 1998-2010 Forester)
MS2258A
Clevite Standard Main Bearing Set - Subaru Models (inc. 2015-2021 STI / 1990-2010 Legacy)
3 In Stock
MB5382XPGC
King Engine Bearings Standard Crank Main Bearing Set pMax Coated - Subaru EJ Models (inc. 2002-2014 WRX / 2004-2021 STI)
5M8297H-.25
ACL Race Main Bearings Undersized -.010in - Subaru Models (inc. 1993-1999 Impreza / 1990-1999 Legacy)
5M1913H-STD
ACL Race Main Bearings Standard Size - 2000-2009 Honda S2000
5M1957H-STD
ACL Race Main Bearings Standard Size - Honda/Acura Models (inc. 1992-2000 Honda Civic SOHC)
3 In Stock
5M1237H-STD
ACL Race Main Bearings Standard Size - 2008-2015 Mitsubishi Evo X
1 In Stock
MB5745SI
King Engine Bearings Crankshaft Main Bearings Subaru FA/FB - Subaru Models (inc. 2013-2020 BRZ)
MS2258H
Clevite Standard Main Bearing Set - Subaru EJ Models (inc. 2002-2014 WRX / 2004-2021 STI)
4M2633H-STD
ACL Race Main Bearings Standard Size - Nissan VQ35DE Models (inc. 2003-2006 350Z)
2 In Stock
MB4539XP0.25
King Engine Bearings Undersized Crank Main Bearing Set -.010in - Ford 3.5L Ecoboost Models (Inc. Taurus SHO 2010+)
3 In Stock
MB5382XPG.026
King Engine Bearings Undersized Crank Main Bearing Set -.001in - Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)
7 In Stock
MB5745XPGCSTDX
King Engine Bearings Oversized Crank Main Bearing Set +.001in pMax Coated - 2013-2021 Scion FR-S / Subaru BRZ / Toyota 86
2 In Stock
MB5382XPG0.25
King Engine Bearings Undersized Crank Main Bearing -.010in - Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)
1 In Stock
MB5745XPGC
King Engine Bearings Standard Crank Main Bearing Set - 2013-2021 Scion FR-S / Subaru BRZ / Toyota 86
2 In Stock
MB5382XPG STDX
King Engine Bearings Oversized Crank Main Bearing Set +.001in - Subaru EJ Models (inc. 2002-2014 WRX / 2004-2021 STI)
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