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ACL connecting-rod bearing set — manufacturer catalog product photo
ACL 6B1497HX bearing-shell profile drawing
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ACL BMW S50B32 (3.2L) M3 E36 Engine Connecting Rod Bearing Set

ACL
ACL6B1497HX-STD
Bearings
Out of stock
$ 506.79

ACL 6B1497HX-STD is a connecting-rod bearing set for the cataloged BMW S50B32 engine configurations. STD manufacturer size designation; verify the exact engine and assembled clearance.

Bearing Configuration

HX specifies 0.001 inch (0.025 mm) additional oil clearance relative to the corresponding H-STD set on the specified standard-size shaft. It is separate from any repair-size or housing-oversize designation.

Engine Application

ACL’s 2023 guide separates S50B30 rod bearings in the 6B1515 family from S50B32 rod bearings in the 6B1497 family. Both applications list 7M1532 main bearings, but the rod-bearing technical rows have different shaft-journal dimensions. A shared main-bearing family does not establish rod-set interchangeability.

Manufacturer / Engine BMW — S50B32

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

Brand ACL
Manufacturer Part Number 6B1497HX-STD
Component Connecting-Rod Bearing Set
Size Selection STD manufacturer size designation; verify the exact engine and assembled clearance.
Catalog Rod Housing Bore (STD journal) 53.000–53.015 mm
Catalog Rod Journal Diameter (STD) 48.975–48.991 mm
Catalog Family ACL Race Series
Half Type Identical halves
Catalog Size Options STD

Quantity and Assembly Checks

Confirm the rod-bearing set contents and shell positions 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 builder’s 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. ACL specifies that abrasive pads or paper must not be used on the bearing surface to alter oil clearance.

Frequently Asked Questions

Is the year and model enough to choose this bearing? No. Match 6B1497HX-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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