This ACL oversized rod bearing set is specified for 1986–2003 Mazda 4-cylinder engines (B6/BP family) at +0.25mm. Intended as replacement bearings for rods after machining or crank work, the set restores correct bearing clearance and supports reliable rotating assembly operation. It’s a precision-fit bearing option for engine rebuilds that require the stated oversize dimension to match machined journals.
ACL 86-03 Mazda 4 1597(B6)-1840cc(BP) .25mm Oversized Rod Bearing Set