ACL Subaru EJ Main Bearings, 0.005in Housing Oversize 5M8309HO/S5-STD

ACL 5M8309HO/S5-STD is a main bearing set for the cataloged Subaru EJ18E, EJ205, EJ20D, EJ20E engine configurations. STD manufacturer size designation; verify the exact engine and assembled clearance.

Bearing Configuration

H identifies the ACL Race Series family. Match the complete suffix to the required clearance, shell width and locating features.

0.005 inch oversize housing configuration. Keep the housing-oversize requirement separate from the crankshaft size suffix.

For the cataloged Subaru configuration with the thrust bearing in position five. Verify the block and thrust arrangement before ordering.

Engine Application

The engine-family list identifies catalog applications, not universal vehicle fitment. Confirm the exact engine version, crankshaft, rods, block and bearing location. Vehicle names and photos do not replace dimensional verification.

Specifications

Quantity and Assembly Checks

Confirm the set contents, bearing positions and any separate thrust components against the complete manufacturer number. The photo is representative of the part family.

Measure shaft journals, housing bores and assembled oil clearance using the engine builders specification. Check oil-hole alignment, groove placement and crankshaft fillet clearance before final assembly. Catalog standard dimensions must not be treated as the finished dimensions for a different repair size.

Frequently Asked Questions

Is the year and model enough to choose this bearing? No. Match 5M8309HO/S5-STD to the exact engine and measured build specification.

What size is this listing? STD manufacturer size designation; verify the exact engine and assembled clearance.

Can I substitute a different suffix? Compare the complete grade, size, locating features and assembled clearance before substituting any bearing.

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